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Document And Entity Information - USD ($) $ in Millions	12 Months Ended
Document And Entity Information - USD ($) $ in Millions	Dec. 31, 2016	Feb. 17, 2017	Jun. 30, 2016
Document And Entity Information [Abstract]
Entity Registrant Name	Superior Energy Services Inc
Entity Central Index Key	0000886835
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Amendment Flag	false
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		152,831,316
Entity Public Float			$ 2,810
Entity Well-known Seasoned Issuer	Yes
Trading Symbol	spn
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 187,591	$ 564,017
Accounts receivable, net of allowance for doubtful accounts of $29,740 and $28,242 at December 31, 2016 and December 31, 2015, respectively	297,164	428,514
Income tax receivable	101,578
Prepaid expenses	37,288	42,298
Inventory and other current assets	130,772	165,062
Assets held for Sale	27,158	95,234
Total current assets	781,551	1,295,125
Property, plant and equipment, net of accumulated depreciation and depletion	1,605,365	2,123,291
Goodwill	803,917	1,140,101
Notes receivable	56,650	52,382
Intangible and other long-term assets, net of accumulated amortization	222,772	303,345
Total assets	3,470,255	4,914,244
Current liabilities:
Accounts payable	94,831	114,475
Accrued expenses	218,192	271,246
Income taxes payable	694	9,185
Current portion of decommissioning liabilities	22,164	19,052
Current maturities of long-term debt		29,957
Liabilities Held-for-sale	8,653	4,661
Total current liabilities	344,534	448,576
Deferred income taxes	243,611	383,069
Decommissioning liabilities	101,513	98,890
Long-term debt, net	1,284,600	1,588,263
Other long-term liabilities	192,077	184,634
Stockholders' equity:
Preferred stock of $0.01 par value. Authorized, 5,000,000 shares; none issued
Common stock of $0.001 par value. Authorized-250,000,000, Issued and Outstanding-151,861,661 at December 31, 2016; Authorized-250,000,000, Issued and Outstanding-150,861,500 at December 31, 2015	152	151
Additional paid in capital	2,691,553	2,664,517
Accumulated other comprehensive loss, net	(80,248)	(45,694)
Retained earnings	(1,307,537)	(408,162)
Total stockholders' equity	1,303,920	2,210,812
Total liabilities and stockholders' equity	$ 3,470,255	$ 4,914,244

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Consolidated Balance Sheets [Abstract]
Allowance for doubtful accounts	$ 29,740	$ 28,242
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	151,861,661	150,861,500
Common stock, shares outstanding	151,861,661	150,861,500

Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Consolidated Statements of Operations [Abstract]
Services	$ 1,162,244	$ 2,104,942	$ 3,466,279
Rentals	287,803	669,623	1,090,343
Total revenues	1,450,047	2,774,565	4,556,622
Costs and expenses:
Cost of Services (exclusive of depreciation, depletion, amortization and accretion)	975,941	1,575,653	2,308,270
Cost of Rentals (exclusive of depreciation, depletion, amortization and accretion)	147,333	290,159	426,563
Cost of goods and services	1,123,274	1,865,812	2,734,833
Depreciation, depletion, amortization and accretion - services	408,752	465,232	494,619
Depreciation, depletion, amortization and accretion - rentals	101,219	146,915	156,195
General and administrative expenses	346,606	510,708	624,371
Reduction in value of assets	500,405	1,738,887
Income (loss0 from operations	(1,030,209)	(1,952,989)	546,604
Other income (expense):
Interest expense, net	92,753	97,318	96,734
Other income (expense)	22,621	(9,476)	(7,681)
Income (loss) from continuing operations before income taxes	(1,100,341)	(2,059,783)	442,189
Income taxes	(267,001)	(252,020)	161,399
Net income (loss) from continuing operations	(833,340)	(1,807,763)	280,790
Loss from discontinued operations, net of tax	(53,559)	(46,955)	(22,973)
Net income (loss)	$ (886,899)	$ (1,854,718)	$ 257,817
Earnings (loss) per share information:
Continuing operations, basic	$ (5.50)	$ (12.02)	$ 1.81
Discontinued operations, basic	(0.35)	(0.31)	(0.15)
Basic earnings (loss) per share	(5.85)	(12.33)	1.66
Continuing operations, diluted	(5.50)	(12.02)	1.79
Discontinued operations, diluted	(0.35)	(0.31)	(0.14)
Diluted earnings per share	(5.85)	(12.33)	1.65
Cash dividends declared per share	$ 0.08	$ 0.32	$ 0.24
Weighted average common shares used in computing earnings (loss) per share:
Basic	151,558	150,461	155,154
Incremental common shares from stock based compensation			1,572
Diluted	151,558	150,461	156,726

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Consolidated Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (886,899)	$ (1,854,718)	$ 257,817
Reclassification adjustment of unrealized net loss on available-for-sale securities, net			1,153
Change in cumulative translation adjustment, net of tax	(34,554)	(9,414)	(19,933)
Comprehensive income (loss)	$ (921,453)	$ (1,864,132)	$ 239,037

Consolidated Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2013	$ 159	$ 2,873,579	$ (17,500)	$ 1,275,206	$ 4,131,444
Beginning balance, shares at Dec. 31, 2013	158,976,784
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income (loss)				257,817	257,817
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Reclassification Adjustment of unrealized net loss on available-for-sale securities, net of tax			1,153		(1,153)
Foreign currency translation adjustment			(19,933)		(19,933)
Shares Withheld and Retired Value		(7,315)			(7,315)
Shares withheld and retired	(267,340)
Shares Repurchased and Retired, Shares	10,246,091
Shares Repurchased and Retired, Value	$ (10)	(299,734)			(299,744)
Restricted stock units vested	95,914
Vesting of restricted stock assumed with acquisition of Complete	114,839
Exercise of stock options, value	$ 1	10,560			10,561
Exercise of stock options, shares	880,687
Tax benefit (expense) from stock-based compensation		6,160			6,160
Cash dividends declared				(37,483)	(37,483)
Share-based Compensation, Shares, net of forfeitures	152,447
Stock-based compensation expense, net of forfeitures		30,982			30,982
Shares issued under Employee Stock Purchase Plan, value		6,096			$ 6,096
Shares issued under Employee Stock Purchase Plan, shares	246,480				246,480
Ending balance, value at Dec. 31, 2014	$ 150	2,620,328	(36,280)	1,495,540	$ 4,079,738
Ending balance, shares at Dec. 31, 2014	149,648,826
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income (loss)				(1,854,718)	(1,854,718)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustment			(9,414)		(9,414)
Shares Withheld and Retired Value		(5,696)			(5,696)
Shares withheld and retired	(323,537)
Restricted stock units vested	460,400
Restricted stock forfeited, shares	(48,374)
Vesting of restricted stock assumed with acquisition of Complete	61,319
Exercise of stock options, value	$ 1	8,819			8,820
Exercise of stock options, shares	506,029
Tax benefit (expense) from stock-based compensation		(2,174)			(2,174)
Cash dividends declared				(48,984)	(48,984)
Share-based Compensation, Shares, net of forfeitures	332,534
Stock-based compensation expense, net of forfeitures		32,661			(32,661)
Shares issued to pay performance share unit, value		5,011
Shares issued to pay performance share unit, shares	224,303
Shares issued under Employee Stock Purchase Plan, value		5,568			$ 5,568
Shares issued under Employee Stock Purchase Plan, shares					332,467
Ending balance, value at Dec. 31, 2015	$ 151	2,664,517	(45,694)	(408,162)	$ 2,210,812
Ending balance, shares at Dec. 31, 2015	150,861,500
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income (loss)				(886,899)	(886,899)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustment			(34,554)		(34,554)
Shares Withheld and Retired Value		(3,669)			(3,669)
Shares withheld and retired	(364,122)
Restricted stock units vested	1,034,068
Restricted stock forfeited, shares	(1,495)
Exercise of stock options, value		524			$ 524
Exercise of stock options, shares	40,723				40,723
Tax benefit (expense) from stock-based compensation		(5,112)			$ (5,112)
Cash dividends declared				(12,476)	(12,476)
Stock-based compensation expense, net of forfeitures		30,122			30,122
Shares issued to pay performance share unit, value					5,011
Shares issued under Employee Stock Purchase Plan, value		5,172			$ 5,172
Shares issued under Employee Stock Purchase Plan, shares	290,987				290,987
Ending balance, value at Dec. 31, 2016	$ 152	2,691,553	$ (80,248)	$ (1,307,537)	$ 1,303,920
Ending balance, shares at Dec. 31, 2016	151,861,661
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Restricted Stock Units Vested, Value	$ 1	$ (1)

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per share	$ 0.08	$ 0.32	$ 0.24

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ (886,899)	$ (1,854,718)	$ 257,817
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion, amortization and accretion	509,971	612,147	652,143
Deferred income taxes	(142,520)	(288,671)	(49,567)
Reduction in value of assets including discontinued operations	500,405	1,738,887
Stock based and performance share unit compensation expense	41,779	46,485	42,748
Other reconciling items, net	62,056	41,882	(11,470)
Changes in operating assets and liabilities, net of acquisitions and dispositions:
Accounts receivable	128,086	501,269	(9,487)
Inventory and other current assets	(7,646)	33,282	53,594
Accounts payable	3,667	(105,801)	36,450
Accrued expenses	(73,902)	(116,573)	16,411
Income taxes	(107,643)	(30,891)	46,134
Other, net	33,898	55,314	(1,762)
Net Cash Provided by (Used in) Operating Activities, Total	61,252	632,612	1,033,011
Cash flows from investing activities:
Payments for capital expenditures	(80,548)	(358,226)	(616,102)
Purchase of leased vessels		(46,442)
Proceeds from Sale of Available-for-sale Securities, Equity			10,622
Acquisitions of businesses, net of cash acquired			(24,327)
Cash proceeds from sale of businesses		14,110	147,305
Other	6,309	2,290	7,767
Net Cash Provided by (Used in) Investing Activities, Total	(74,239)	(388,268)	(474,735)
Cash flows from financing activities:
Repayments of Long-term Lines of Credit	(325,123)	(7,475)	(14,736)
Proceeds from Long-term Lines of Credit	325,123	7,475	14,736
Payment to extinguish capital lease obligation		(20,933)
Proceeds from issuance of long-term debt		14,733	2,602
Principal payments of long-term debt	(337,576)	(21,038)	(21,564)
Share repurchases			(299,734)
Cash dividends	(12,111)	(48,139)	(49,756)
Payment of debt issuance costs	(2,711)
Proceeds from exercise of stock options		8,820	10,560
Proceeds from issuance of stock through employee benefit plans	3,681	4,803	4,870
Other	(3,082)	(2,302)	724
Net Cash Provided by (Used in) Financing Activities, Total	(355,480)	(68,859)	(357,168)
Effect of exchange rate changes on cash	(7,959)	(4,514)	(4,109)
Net increase in cash and cash equivalents	(376,426)	170,971	196,999
Cash and cash equivalents at beginning of period	564,017	393,046	196,047
Cash and cash equivalents at end of period	$ 187,591	$ 564,017	$ 393,046

Summary Of Significant Accounting Policies

12 Months Ended

Dec. 31, 2016

Summary Of Significant Accounting Policies [Abstract]

Summary Of Significant Accounting Policies

(1) Summary of Significant Accounting Policies

Basis of Presentation

The consolidated financial statements include the accounts of Superior Energy Services, Inc. and subsidiaries (the Company). All significant intercompany accounts and transactions are eliminated in consolidation. Certain previously reported amounts have been reclassified to conform to the 2016 presentation.

Business

The Company provides a wide variety of services and products to the energy industry. The Company serves major, national and independent oil and natural gas companies around the world and offers products and services with respect to the various phases of a well’s economic life cycle. The Company reports its operating results in four business segments: Drilling Products and Services; Onshore Completion and Workover Services; Production Services; and Technical Solutions. Given the Company’s long-term strategy of expanding geographically, the Company also provides supplemental segment revenue information in three geographic areas: U.S. land; Gulf of Mexico; and International.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make significant estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Major Customers and Concentration of Credit Risk

The majority of the Company’s business is conducted with major and independent oil and gas companies. The Company evaluates the financial strength of its customers and provides allowances for probable credit losses when deemed necessary.

The market for the Company’s services and products is the oil and gas industry in the U.S. land and Gulf of Mexico areas and select international market areas. Oil and gas companies make capital expenditures on exploration, development and production operations. The level of these expenditures historically has been characterized by significant volatility.

The Company derives a large amount of revenue from a small number of major and independent oil and gas companies. Anadarko accounted for approximately 11% of the Company’s revenues in 2016, primarily within the Onshore Completion and Workover Services segment. There were no customers that exceeded 10% of our total revenues in 2015 and 2014.

The Company’s assets that are potentially exposed to concentrations of credit risk consist primarily of cash and trade receivables. The financial institutions in which the Company transacts business are large, investment grade financial institutions which are “well capitalized” under applicable regulatory capital adequacy guidelines, thereby minimizing its exposure to credit risks for deposits in excess of federally insured amounts and for failure to perform as the counterparty on interest rate swap agreements. The Company periodically evaluates the creditworthiness of financial institutions that may serve as a counterparty to its derivative instruments.

Cash Equivalents

The Company considers all short-term investments with a maturity of 90 days or less when purchased to be cash equivalents.

Accounts Receivable and Allowances

Trade accounts receivable are recorded at the invoiced amount or the earned amount but not yet invoiced and do not bear interest. The Company maintains allowances for estimated uncollectible receivables, including bad debts and other items. The allowance for doubtful accounts is based on the Company’s best estimate of probable uncollectible amounts in existing accounts receivable. The Company determines the allowance based on historical write-off experience and specific identification.

Inventory

Inventories are stated at the lower of cost or market. Cost is determined using the first-in, first-out or weighted-average cost methods for finished goods and work-in-process. Supplies and consumables consist principally of products used in the Company’s services provided to its customers. The components of inventory balances are as follows (in thousands):



	December 31,
	2016		2015
Finished goods	$	49,888	$	71,951
Raw materials		17,948		23,418
Work-in-process		5,214		18,203
Supplies and consumables		30,029		35,189
Total	$	103,079	$	148,761

During 2016, the Company recorded an inventory write-down charge of $20.8 million, primarily for excess and/or obsolete inventory at its completion products and services division in the Technical Solutions segment.

Property, Plant and Equipment

Property, plant and equipment are stated at cost, except for assets for which reduction in value is recorded during the period and assets acquired using purchase accounting, which are recorded at fair value as of the date of acquisition. With the exception of certain marine assets and oil and natural gas property, depreciation is computed using the straight line method over the estimated useful lives of the related assets as follows:

Buildings and improvements	5	to	40	years
Marine vessels and equipment	5	to	25	years
Machinery and equipment	2	to	25	years
Automobiles, trucks, tractors and trailers	3	to	10	years
Furniture and fixtures	2	to	10	years

The Company follows the successful efforts method of accounting for its investment in oil and natural gas property. Under the successful efforts method, the costs of successful exploratory wells and leases containing productive reserves are capitalized. Costs incurred to drill and equip developmental wells, including unsuccessful wells, are capitalized. Other costs such as geological and geophysical costs and the drilling costs of unsuccessful exploratory wells are expensed. Leasehold and well costs are depleted on a units-of-production basis based on the estimated remaining equivalent oil and gas reserves.

Reduction in Value of Long-Lived Assets

Long-lived assets, such as property, plant and equipment and purchased intangibles subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of assets to be held and used is assessed by a comparison of the carrying amount of such assets to their fair value calculated, in part, by the estimated undiscounted future cash flows expected to be generated by the assets. Cash flow estimates are based upon, among other things, historical results adjusted to reflect the best estimate of future market rates, utilization levels, and operating performance. Estimates of cash flows may differ from actual cash flows due to, among other things, changes in economic conditions or changes in an asset’s operating performance. The Company’s assets are grouped by subsidiary or division for the impairment testing, which represent the lowest level of identifiable cash flows. Impairment testing for these long-lived assets is based on the consolidated entity. If the asset grouping’s fair value is less than the carrying amount of those items, impairment losses are recorded in the amount by which the carrying amount of such assets exceeds the fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value less estimated costs to sell. The net carrying value of assets not fully recoverable is reduced to fair value. The estimate of fair value represents the Company’s best estimate based on industry trends and reference to market transactions and is subject to variability. The oil and gas industry is cyclical and estimates of the period over which future cash flows will be generated, as well as the predictability of these cash flows, can have a significant impact on the carrying values of these assets and, in periods of prolonged down cycles, may result in impairment charges. See note 3 for a discussion of the reduction in value of long-lived assets recorded during 2016 and 2015.

Goodwill

The following table summarizes the activity for the Company’s goodwill (in thousands):



			Onshore
	Drilling		Completion
	Products		and Workover		Production
	and Services		Services		Services		Total

Balance, December 31, 2014	$	142,839	$	1,419,550	$	906,020	$	2,468,409
Acquisition activities		-		-		1,170		1,170
Reduction in value of assets		-		(740,000)		(586,701)		(1,326,701)
Foreign currency translation adjustment		(1,557)		-		(1,220)		(2,777)
Other		-		44,000		(44,000)		-
Balance, December 31, 2015		141,282		723,550		275,269		1,140,101
Reduction in value of assets		-		(140,000)		(190,500)		(330,500)
Foreign currency translation adjustment		(5,321)		-		(363)		(5,684)
Balance, December 31, 2016	$	135,961	$	583,550	$	84,406	$	803,917

Goodwill is tested for impairment annually as of October 1st or on an interim basis if events or circumstances indicate that the fair value of the asset has decreased below its carrying value. In order to estimate the fair value of the reporting units (which is consistent with the reported business segments), the Company used a weighting of the discounted cash flow method and the public company guideline method of determining fair value of each reporting unit. The Company weighted the discounted cash flow method 80% and the public company guideline method 20% due to differences between the Company’s reporting units and the peer companies’ size, profitability and diversity of operations. In order to validate the reasonableness of the estimated fair values obtained for the reporting units, a reconciliation of fair value to market capitalization was performed for each unit on a standalone basis. A control premium, derived from market transaction data, was used in this reconciliation to ensure that fair values were reasonably stated in conjunction with the Company’s capitalization. These fair value estimates were then compared to the carrying value of the reporting units. If the fair value of the reporting unit exceeds the carrying amount, no impairment loss is recognized. If the estimated fair value of the reporting unit is below the carrying value, then a second step must be performed to determine the goodwill impairment, if any. In this second step, the estimated fair value is used as the purchase price in a hypothetical acquisition of the reporting unit. The hypothetical purchase price is allocated to the reporting unit’s assets and liabilities, with the residual amount representing an implied fair value of the goodwill. The carrying amount of the goodwill is then compared to the implied fair value of the goodwill for each reporting unit and is written down to the implied fair value, if lower. The Company uses all available information to estimate fair value of the reporting units, including discounted cash flows. The Company engages third-party appraisal firms to assist in fair value determination of property, plant and equipment, intangible assets and any other significant assets or liabilities when appropriate. A significant amount of judgment was involved in performing these evaluations since the results are based on estimated future events. See note 3 for a discussion of the reduction in value of goodwill recorded during 2016 and 2015. At December 31, 2016 and 2015, the Company’s accumulated reduction in value of goodwill was $1,748.2 million and $1,417.7 million, respectively.

Notes Receivable

The Company’s wholly owned subsidiary, Wild Well, has decommissioning obligations related to its ownership of the Bullwinkle platform. Notes receivable consist of a commitment from the seller of the platform towards its eventual abandonment. Pursuant to an agreement with the seller, the Company will invoice the seller an agreed upon amount at the completion of certain decommissioning activities. The gross amount of this obligation totaled $115.0 million and is recorded at present value using an effective interest rate of 6.58%. The related discount is amortized to interest income based on the expected timing of the platform’s removal. The Company recorded interest income related to notes receivable of $3.6 million, $1.7 million and $1.6 million during 2016, 2015 and 2014, respectively.

Intangible and Other Long-Term Assets

Intangible assets consist of the following (in thousands):



		December 31,
		2016						2015
	Estimated	Gross		Accumulated		Net		Gross		Accumulated		Net
	Useful Lives	Amount		Amortization		Balance		Amount		Amortization		Balance
Customer relationships	17 years	$	164,603	$	(52,747)	$	111,856	$	257,364	$	(65,209)	$	192,155
Tradenames	10 years		30,519		(14,123)		16,396		36,119		(15,371)		20,748
Non-compete agreements	3 years		2,790		(2,718)		72		3,242		(2,940)		302
Total		$	197,912	$	(69,588)	$	128,324	$	296,725	$	(83,520)	$	213,205

Amortization expense was $16.2 million, $23.0 million and $25.9 million during 2016, 2015 and 2014, respectively. Based on the carrying values of intangible assets at December 31, 2016, amortization expense for the next five years (2017 through 2021) is estimated to be $12.7 million per year.

During 2016, the Company recorded $68.9 million of expense related to the reduction in carrying values of intangibles primarily in the Onshore Completion and Workover Services and Production Services segments (see note 3).

Intangible and other long-term assets, net included $58.5 million and $58.4 million of escrowed cash at December 31, 2016 and 2015, respectively, primarily related to the future decommissioning obligations of the Bullwinkle platform.

Decommissioning Liabilities

The Company’s decommissioning liabilities associated with the Bullwinkle platform and its related assets consist of costs related to the plugging of wells, the removal of the related platform and equipment, and site restoration. The Company reviews the adequacy of its decommissioning liabilities whenever indicators suggest that the estimated cash flows needed to satisfy the liability have changed materially.

The following table summarizes the activity for the Company’s decommissioning liabilities (in thousands):



	December 31,
	2016		2015
Decommissioning liabilities, December 31, 2015 and 2014, respectively	$	117,942	$	88,000
Revisions in estimated timing and cash flows		(2,132)		24,660
Accretion		6,959		5,016
Liability acquisitions and dispositions		908		266
Total decommissioning liabilities, December 31, 2016 and 2015, respectively	$	123,677	$	117,942

Revenue Recognition

Products and services are generally sold based upon purchase orders or contracts with customers that include fixed or determinable prices. Revenue is recognized when services or equipment are provided and collectability is reasonably assured. The Company’s drilling products and services are billed on a day rate basis, and revenue from the sale of equipment is recognized when the title to the equipment has been transferred. Reimbursements from customers for the cost of drilling products and services that are damaged or lost down-hole are reflected as revenue at the time of the incident. The Company recognizes oil and gas revenue from its interests in producing wells as oil and natural gas is sold. Taxes collected from customers and remitted to governmental authorities are reported on a net basis in the Company’s financial statements.

Income Taxes

The Company accounts for income taxes and the related accounts under the asset and liability method. Deferred income taxes reflect the impact of temporary differences between amounts of assets and liabilities for financial reporting purposes and such amounts as measured by tax laws and rates that are in effect when the temporary differences are expected to reverse. The effect of a change in tax rates on the deferred income taxes is recognized in income in the period in which the change occurs. A valuation allowance is recorded when management believes it is more likely than not that at least some portion of any deferred tax asset will not be realized. It is the Company’s policy to recognize interest and applicable penalties related to uncertain tax positions in income tax expense.

Earnings per Share

Basic earnings per share is computed by dividing income available to common stockholders by the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share is computed in the same manner as basic earnings per share except that the denominator is increased to include the number of additional shares of common stock that could have been outstanding assuming the exercise of stock options and conversion of restricted stock units.

During 2016 and 2015, the Company incurred losses from continuing operations; therefore the impact of any incremental shares would be anti-dilutive. Stock options for 1,100,000 shares of the Company’s common stock were excluded in the computation of diluted earnings per share for 2014, as the effect would have been anti-dilutive.

Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or the price paid to transfer a liability in an orderly transaction between market participants at the measurement date. Inputs used in determining fair value are characterized according to a hierarchy that prioritizes those inputs based on the degree to which they are observable. The three input levels of the fair value hierarchy are as follows:

Level 1: Unadjusted quoted prices in active markets for identical assets and liabilities;

Level 2: Observable inputs other than those included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical assets or liabilities in inactive markets or model-derived valuations or other inputs that can be corroborated by observable market data; and

Level 3: Unobservable inputs reflecting management’s own assumptions about the inputs used in pricing the asset or liability.

Financial Instruments

The fair value of the Company’s financial instruments of cash equivalents, accounts receivable, accounts payable, accrued expenses and borrowings under its credit facility approximates their carrying amounts due to their short maturity or market interest rates. The fair value of the Company’s debt was $1,307.6 million and $1,508.0 million at December 31, 2016 and 2015, respectively, and was categorized as Level 1 in the fair value hierarchy. The fair value of these debt instruments is determined by reference to the market value of the instrument as quoted in an over-the-counter market.

Foreign Currency

Results of operations for foreign subsidiaries with functional currencies other than the U.S. dollar are translated using average exchange rates during the period. Assets and liabilities of these foreign subsidiaries are translated using the exchange rates in effect at the balance sheet dates, and the resulting translation adjustments are reported as accumulated other comprehensive loss in the Company’s stockholders’ equity.

For international subsidiaries where the functional currency is the U.S. dollar, financial statements are remeasured into U.S. dollars using the historical exchange rate for most of the long-term assets and liabilities and the balance sheet date exchange rate for most of the current assets and liabilities. An average exchange rate is used for each period for revenues and expenses. These transaction gains and losses, as well as any other transactions in a currency other than the functional currency, are included in other income (expense) in the consolidated statements of operations in the period in which the currency exchange rates change. During 2016, 2015 and 2014, the Company recorded $23.5 million, $(9.6) million and $(7.3) million of foreign currency gains/(losses), respectively.

Stock-Based Compensation

The Company records compensation costs relating to share-based payment transactions and includes such costs in general and administrative expenses in the consolidated statements of operations. The cost is measured at the grant date, based on the calculated fair value of the award, and is recognized as an expense over the employee’s requisite service period (generally the vesting period of the equity award). Excess tax benefits of awards that are recognized in equity related to stock option exercises and restricted stock vesting are reflected as financing cash flows.

Derivative Instruments and Hedging Activities

The Company recognizes all derivative instruments as either assets or liabilities in the balance sheet at their respective fair values. Interest rate swap agreements that are effective at hedging the fair value of fixed-rate debt agreements are designated and accounted for as fair value hedges. The Company also assesses, both at inception of the hedging relationship and on an ongoing basis, whether the derivatives used in hedging relationships are highly effective in offsetting changes in fair value.

In an attempt to achieve a more balanced debt portfolio between fixed and variable interest, the Company has entered into interest rate swaps. Under these agreements, the Company was entitled to receive semi-annual interest payments at a fixed rate and was obligated to make quarterly interest payments at a variable rate. The Company had fixed-rate interest on 77% and 62% of its long-term debt at December 31, 2016 and 2015, respectively. The Company had notional amounts of $300 million related to interest rate swaps with a variable interest rate, adjusted every 90 days, based on LIBOR plus a fixed margin at December 31, 2016 and 2015. Subsequent to year-end, during January 2017, the Company sold these interest rate swaps to the counterparties for $0.8 million.

Self-Insurance Reserves

The Company is self-insured, through deductibles and retentions, up to certain levels for losses under its insurance programs. The Company accrues for these liabilities based on estimates of the ultimate cost of claims incurred as of the balance sheet date. The Company regularly reviews the estimates of reported and unreported claims and provides for losses through reserves. The Company obtains actuarial reviews to evaluate the reasonableness of internal estimates for losses related to workers’ compensation, auto liability and group medical on an annual basis.

Recently Issued Accounting Guidance

In January, 2017, the Financial Accounting Standards Board (FASB) issued accounting standards update (ASU) 2017-04, Intangibles- Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The amendments eliminate Step 2 from the goodwill impairment test. The annual, or interim, goodwill impairment test is performed by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value. The amendments should be applied on a prospective basis. The new standard is effective for the Company on January 1, 2020, early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company will adopt the accounting guidance as of January 1, 2017. The adoption of this ASU will not have a material impact on the Company’s consolidated financial statements.

In January, 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The amendments affect all companies and other reporting organizations that must determine whether they have acquired or sold a business. The amendments are intended to help companies and other organizations evaluate whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The amendments provide a more robust framework to use in determining when a set of assets and activities is a business. The new standard is effective for the Company beginning on January 1, 2018. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements.

In November, 2016, the FASB issued ASU 2016-18, Statements of Cash Flows (Topic 230): Restricted Cash. The guidance in this update require that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. As a result, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The new standard is effective for the Company beginning on January 1, 2018 and should be applied on a retrospective basis. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements.

In October, 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory. The guidance in this update requires entities to recognize at the transaction date the income tax consequences of intercompany asset transfers other than inventory. The new standard is effective for the Company beginning on January 1, 2018. The Company is evaluating the effect that ASU 2016-16 will have on its consolidated financial statements and related disclosures.

In March, 2016, the FASB issued ASU 2016-09, Compensation – Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which relates to the accounting for employee share-based payments. The guidance in this update addresses several aspects of the accounting for share-based payments, including income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. The Company will adopt the accounting guidance as of January 1, 2017. The adoption of this ASU will not have a material impact on the Company’s consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases, which requires lessees to recognize the assets and liabilities arising from leases on the balance sheet. This new guidance will require the lessee to recognize a lease liability equal to the present value of the lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term for all leases longer than 12 months. For leases with a term of 12 month or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and liabilities and recognize the lease expense for such leases generally on a straight-line basis over the lease term. Under the new guidance, the Company will revise its leasing policies to require most of the leases, where the Company is the lessee, to be recognized on the balance sheet as a lease and lease liability. Further, the Company will separate leases from other contracts where the Company is either the lessor or lessee when the rights conveyed under the contracts indicate there is a lease. At this time, the Company cannot calculate the impact the new standard will have on the Company’s consolidated financial statements, the Company anticipates that its assets and liabilities will increase by a significant amount. The new standard is effective for the Company beginning on January 1, 2019.

In July 2015, the FASB issued ASU No. 2015-11, Inventory – Simplifying the Measurement of Inventory, which applies to inventory measured using first-in, first-out or average cost. The guidance in this update states that inventory within its scope shall be measured at the lower of cost or net realizable value, and when the net realizable value of inventory is lower than its cost, the difference shall be recognized as a loss in earnings. The Company will adopt the accounting guidance as of January 1, 2017. The adoption of this ASU will not have a material impact on the Company’s consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which will replace most existing revenue recognition guidance in GAAP. The guidance in this update requires an entity to recognize the amount of revenue that it expects to be entitled for the transfer of promised goods or services to customers. The new standard is effective for the Company on January 1, 2018. The Company is in the process of determining the impacts of the new standard on its various revenue streams. The Company’s approach includes performing a detailed review of key contracts representative of the different businesses and comparing historical accounting policies and practices to the new accounting guidance. The Company’s services and rental contracts are primarily short-term in nature, and therefore, based on the initial assessment, the Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements. Remaining implementation matters include establishing new policies, procedures, and controls and quantifying any adoption date adjustments. The Company will adopt this standard utilizing the modified retrospective method.

Subsequent Events

In accordance with authoritative guidance, the Company has evaluated and disclosed all material subsequent events that occurred after the balance sheet date, but before financial statements were issued.

Supplemental Cash Flow Information

12 Months Ended

Dec. 31, 2016

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

(2) Supplemental Cash Flow Information

The following table includes the Company’s supplemental cash flow information (in thousands):



	Years ended December 31,
	2016		2015		2014
Cash paid for interest	$	93,353	$	93,946	$	102,880

Cash paid for income taxes, net of refunds	$	(28,933)	$	40,074	$	127,132

Details of business acquisitions:
Fair value of assets	$	-	$	-	$	29,468
Fair value of liabilities		-		-		(5,125)
Cash paid		-		-		24,343
Less cash acquired		-		-		(16)
Net cash paid for acquisitions	$	-	$	-	$	24,327

Non-cash investing activity:

Capital expenditures included in accounts payable and accrued expenses	$	4,905	$	28,704	$	49,118

Reduction in Value of Assets

12 Months Ended

Dec. 31, 2016

Reduction In Value Of Assets [Abstract]

Reduction In Value Of Assets

(3) Reduction in Value of Assets and Other Charges

During 2016 and 2015, the Company recorded $500.4 million and $1,738.9 million in expense related to reduction in value of assets, respectively. The components of reduction in value of assets are as follows (in thousands):


	Years ended December 31,
	2016		2015
Reduction in value of goodwill	$	330,500	$	1,326,701
Reduction in value of long-lived assets		143,803		330,194
Retirements of long-lived assets		26,102		42,545
Reduction in value of assets related to sale of a business		-		39,447
Total reduction in value of assets	$	500,405	$	1,738,887

Reduction in Value of Goodwill

During 2016, the Company recorded $330.5 million reduction in value of goodwill relating to its Onshore Completion and Workover Services and Production Services segments. The Company determined that the implied fair value of its goodwill for the Onshore Completion and Workover Services segment was less than its carrying value and recorded a $140.0 million impairment of the Onshore Completion and Workover Services segment’s goodwill. In addition, the Company determined that the implied fair value of its goodwill for the Production Services segment was less than its carrying value and recorded a $190.5 million impairment of the Production Services segment’s goodwill. The reduction in value of goodwill in the Onshore Completion and Workover Services and Production Services segments was primarily driven by further deterioration of market conditions during 2016 and the Company’s forecast did not indicate a timely recovery sufficient to support the carrying values of the goodwill.

During 2015, the Company recorded $1,326.7 million reduction in value of goodwill relating to its Onshore Completion and Workover Services and Production Services segments. The Company determined that the implied fair value of its goodwill for the Onshore Completion and Workover Services segment was less than its carrying value and recorded a $740.0 million impairment of the Onshore Completion and Workover Services segment’s goodwill. In addition, the Company determined that the implied fair value of its goodwill for the Production Services segment was less than its carrying value and recorded a $586.7 million impairment of the Production Services segment’s goodwill. The reduction in value of goodwill in the Onshore Completion and Workover Services and Production Services segments was primarily driven by deteriorated market conditions during the year and the Company’s forecast did not indicate a timely recovery sufficient to support the carrying values of the goodwill.

Reduction in Value of Long-Lived Assets

During 2016, the Company recorded $143.8 million in connection with the reduction in value of its long-lived assets. The reduction in value of assets was comprised of $4.9 million related to equipment and $45.9 million related to intangibles in the fluid management business in the Onshore Completion and Workover Services segment and $21.4 million related to equipment and $21.0 million related to intangibles, primarily relating to the cementing business in the Production Services segment. Also, the Company recorded $25.0 million related to the reduction in carrying values of certain accommodation units included in the Drilling Products and Services segment. In addition, the Company recorded $25.6 million related to the reduction in carrying values of the marine vessels and equipment in the conventional decommissioning division in its Technical Solutions segment. The reduction in value of assets recorded during 2016 was primarily driven by the decline in demand for these services.

During 2015, the Company recorded $330.2 million in connection with the reduction in value of its long-lived assets. The reduction in value of assets was comprised of $89.7 million related to equipment and $59.5 million related to intangibles in the coiled tubing business and pressure control tools businesses within the Production Services segment. The reduction in value of assets also included $68.9 million related to the reduction in carrying values of the marine vessels and equipment and $56.0 million related to impairment of the Gulf of Mexico oil and gas property which is included in the Technical Solutions segment. In addition, the reduction in value of assets included a $40.2 million charge, primarily related to reduction in carrying values of certain domestic and international accommodation units and premium drill pipe included in the Drilling Products and Services segment and a $15.9 million charge related to mechanical drilling rigs included in the Onshore Completion and Workover Services segment. The reduction in value of assets recorded during 2015 was primarily driven by the decline in demand for these services.

Retirements of Long-Lived Assets

During 2016, the Company recorded $26.1 million, primarily in the Drilling Products and Services segment for retirement and abandonment of excess and inoperable and/or functionally obsolete long-lived assets that would require a significant cost to refurbish.

During 2015, the Company recorded $42.5 million for retirement and abandonment of inoperable and/or functionally obsolete long-lived assets that would require a significant cost to refurbish. The total amount recorded includes $27.3 million for the Onshore Completion and Workover Services segment and $15.2 million for the Production Services segment.

Reduction in Value of Assets Related to Sale of Coiled Tubing Business in Mexico

During 2015, the Company sold its Mexico based coiled tubing business and related assets. The Company received proceeds in the form of cash and a note receivable. The Company recorded a full valuation allowance on the note receivable in the amount of $16.8 million because its collectability was not reasonably assured. In connection with the sale, the Company recorded a $39.4 million reduction in value of assets, primarily related to property, plant and equipment and intangible assets.

Other Charges

During 2016, the Company recorded $39.2 million primarily relating to severance and facility closures. At December 31, 2016, the accrued lease termination liability balances were $4.9 million and $7.8 million, included in accrued expenses and other long-term liabilities, respectively, on the consolidated balance sheet.

During 2015, in connection with the reorganization of several of its businesses, the Company recorded $46.8 million relating to severance expense and reorganization costs. Included in the total reorganization costs is $20.2 million relating to the impairment of certain real estate operating leases included in the Onshore Completion and Workover Services segment. At December 31, 2015, the accrued lease termination liability balances were $7.2 million and $11.1 million, included in accrued expenses and other long-term liabilities, respectively, on the consolidated balance sheet.

Property, Plant And Equipment

12 Months Ended

Dec. 31, 2016

Property, Plant And Equipment [Abstract]

Property, Plant And Equipment

(4) Property, Plant and Equipment

A summary of property, plant and equipment is as follows (in thousands):



	December 31,
	2016		2015
Machinery and equipment	$	3,513,907	$	3,771,046
Buildings, improvements and leasehold improvements		307,658		318,906
Automobiles, trucks, tractors and trailers		37,103		45,013
Furniture and fixtures		66,045		67,483
Construction-in-progress		11,048		74,683
Land		59,774		58,731
Oil and gas producing assets		64,169		66,285
Total		4,059,704		4,402,147
Accumulated depreciation and depletion		(2,454,339)		(2,278,856)
Property, plant and equipment, net	$	1,605,365	$	2,123,291

The Company had $82.5 million and $84.9 million of leasehold improvements at December 31, 2016 and 2015, respectively. These leasehold improvements are depreciated over the shorter of the life of the asset or the term of the lease using the straight line method. Depreciation expense (excluding depletion, amortization and accretion) was $486.9 million, $584.1 million and $620.6 million during 2016, 2015 and 2014, respectively. During 2016, the Company recorded $101.0 million related to reduction in value of property, plant and equipment (see note 3).

Debt

12 Months Ended

Dec. 31, 2016

Debt [Abstract]

Debt

(5) Debt

The Company’s outstanding debt is as follows (in thousands):



	December 31,
	2016				2015
	Long-term		Current		Long-term		Current
Senior Notes due May 2019	$	500,000	$	-	$	500,000	$	-
Senior Notes due December 2021		800,000		-		800,000		-
Term loan		-		-		305,000		20,000
Other		-		-		3,089		9,957
Total debt, gross		1,300,000		-		1,608,089		29,957
Unamortized debt issuance costs		(15,400)		-		(19,826)		-
Total debt, net	$	1,284,600	$	-	$	1,588,263	$	29,957

Debt maturities presented as of December 31, 2016 are as follows (in thousands):



2017	$	-
2018		-
2019		500,000
2020		-
2021		800,000
Thereafter		-
Total	$	1,300,000

Credit Facility

At December 31, 2015, the Company had a credit facility that was comprised of a $600.0 million revolving line of credit and a $325.0 million term loan. In February 2016, the Company amended its credit facility. The amendment, among other things, reduced the size of the facility to $470.3 million, extended the maturity date to 2019 and eliminated the term loan component. In July 2016, the Company amended the credit facility. The amendment, among other things, reduced the size of the facility to $400.0 million, suspended the maximum leverage ratio covenant until the fourth quarter of 2017 and replaced it with a senior secured debt to earnings before interest, taxes, depreciation and amortization ratio covenant during this period and modifies the restricted payment covenant to eliminate our ability to pay dividends and make equity repurchases until September 2017. During 2016, the Company made payments totaling $325.0 million on the revolving credit facility and currently has no outstanding debt balance under the facility.

Subsequent to year-end, in February 2017, the Company amended its credit facility. The amendment, among other things, reduced the size of the credit facility from $400.0 million to $300.0 million (with a $100.0 million accordion feature) and amended the financial covenants, in part to suspend the interest coverage ratio until the third quarter of 2017.

Senior Unsecured Notes

The Company has outstanding $500 million of 6 3/8% unsecured senior notes due 2019. The indenture governing the 6 3/8% senior notes requires semi-annual interest payments on May 1st and November 1st of each year through the maturity date of May 1, 2019.

The Company also has outstanding $800 million of 7 1/8% unsecured senior notes due 2021. The indenture governing the 7 1/8% senior notes requires semi-annual interest payments on June 15th and December 15th of each year through the maturity date of December 15, 2021.

Stock-Based Compensation And Retirement Plans

12 Months Ended

Dec. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based and Long-Term Compensation

(6) Stock-Based and Long-Term Compensation

During 2016, the 2016 Incentive Award Plan was approved and it replaced the previous plan. The Compensation Committee determines the recipients of the equity awards, the type of awards made, the required performance measures, and the timing and duration of each grant. At December 31, 2016, 8,700,000 shares of the Company’s common stock were available for future grants under the plan.

Total stock-based compensation expense and the associated tax benefits are as follows (in thousands):



Compensation Expense	Years ended December 31,
	2016		2015		2014
Stock options	$	4,870	$	3,663	$	3,900
Restricted stock		382		9,219		15,800
Restricted stock units		24,762		19,699		11,282
Performance and strategic performance share units		10,167		12,991		13,092
Total	$	40,181	$	45,572	$	44,074

Tax Benefit	Years ended December 31,
	2016		2015		2014
Stock options	$	1,802	$	1,355	$	1,443
Restricted stock		141		3,411		5,846
Restricted stock units		9,162		7,289		4,174
Total	$	11,105	$	12,055	$	11,463

Total stock-based compensation expense is reflected in general and administrative expenses in the consolidated statements of operations.

Stock Options

Stock options are granted with an exercise price equal to the market price of our ordinary shares at the date of grant. The stock options generally vest in equal installments over three years and expire in ten years from the grant date. Non-vested stock options are generally forfeited upon termination of employment.

The Company recognizes compensation expense for stock option grants based on the fair value at the date of grant using the Black-Scholes-Merton option pricing model. The Company uses historical data, among other factors, to estimate the expected volatility and the expected life of the stock options. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for the expected life of the stock option. The dividend yield is based on our historical and projected dividend payouts.

The weighted average fair values of stock options granted and the assumptions used in estimating those fair values are as follows:



	Years ended December 31,
	2016			2015			2014
Weighted average fair value of stock options granted	$	3.61		$	6.25		$	6.95

Black-Scholes-Merton Assumptions:
Risk free interest rate		1.46	%		1.33	%		1.42	%
Expected life (years)		5			5			4
Volatility		55.72	%		47.07	%		34.50	%
Dividend yield		3.28			1.30			1.23

The following table summarizes stock option activity for 2016:



	Number of Options	Weighted Average Option Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding as of December 31, 2015	4,591,141	$	23.60	5.3	$	256
Granted	2,121,417	$	9.76
Exercised	(40,723)	$	12.86
Forfeited	(289,820)	$	9.76
Expired	(371,181)	$	27.21
Outstanding as of December 31, 2016	6,010,834	$	19.23	6.0		14,145
Exercisable as of December 31, 2016	3,671,241	$	23.86	4.2	$	1,104
Options expected to vest as of December 31, 2016	2,339,593	$	11.97	8.8	$	13,041

The total intrinsic value of stock options exercised during 2016, 2015 and 2014 was $0.3 million, $2.3 million and $17.1 million, respectively. The Company received $0.5 million, $8.8 million and $10.6 million during 2016, 2015 and 2014, respectively, from employee stock option exercises. The Company has reported tax benefits of $0.1 million, $0.9 million and $5.6 million from the exercise of stock options for 2016, 2015 and 2014, respectively.

The following table summarizes non-vested stock option activity for 2016:



	Number of Options	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2015	1,102,879	$	20.81
Granted	2,121,417	$	9.76
Vested	(594,883)	$	21.54
Forfeited	(289,820)	$	9.76
Non-vested as of December 31, 2016	2,339,593	$	11.97

At December 31, 2016, the unrecognized compensation expense related to non-vested stock options was $5.7 million. The Company expects to recognize $3.3 million and $2.4 million of compensation expense associated with these options during 2017 and 2018, respectively.

Restricted Stock

Since 2014, no restricted stock has been granted. The following table summarizes restricted stock activity for 2016:



	Number of Shares	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2015	292,937	$	23.13
Vested	(291,779)	$	23.13
Forfeited	(1,158)	$	23.03
Non-vested as of December 31, 2016	-	$	-

The total fair value of restricted stock vested during 2016, 2015 and 2014 was $6.8 million, $12.1 million and $23.0 million, respectively.

Restricted Stock Units

Beginning in 2014, restricted stock unit awards (RSUs) were granted to eligible employees instead of restricted stock. Prior to 2014, only non-employee directors were granted RSUs. RSUs granted to employees vest in equal annual installments over three years. On the vesting date, each RSU is converted to one share of the Company’s common stock having an aggregate value determined by the Company’s closing stock price on the vesting date. Holders of RSUs are not entitled to any rights of a stockholder, such as the right to vote shares.

Each non-employee director is issued annually a number of RSUs having an aggregate dollar value determined by the Company’s Board of Directors. The exact number of RSUs granted is determined by dividing the aggregate dollar value determined by the Company’s Board of Directors by the fair market value of the Company’s common stock on the day of the annual stockholders’ meeting. If the director’s election occurs at a time other than at the annual meeting, the director will receive a pro-rata number of RSUs based on the number of months between his or her election date and the anniversary of the last annual stockholder meeting. Each RSU granted prior to 2013 represents the right to receive from the Company, within 30 days of the date the director ceases to serve on the Board, one share of the Company’s common stock. The RSUs granted will vest and pay out in shares of the Company’s common stock in the year following the grant date on the date of Company’s annual meeting.

The following table summarizes RSU activity for 2016:



	Number of RSUs	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2015	2,787,889	$	20.41
Granted	2,549,112	$	9.98
Vested	(1,127,930)	$	20.62
Forfeited	(522,779)	$	13.56
Non-vested as of December 31, 2016	3,686,292	$	14.10

At December 31, 2016, there was $24.2 million of unrecognized compensation expense related to unvested RSUs. The Company expects to recognize $16.6 million, $7.3 million, and $0.3 million associated with unvested RSUs for 2017, 2018, and 2019, respectively.

Performance Share Units

The Company has issued performance share units (PSUs) to its employees as part of the Company’s long-term incentive program. There is a three-year performance period associated with each PSU grant. The two performance measures applicable to all participants are the Company’s return on invested capital and total stockholder return relative to those of the Company’s pre-defined “peer group.” If the participant has met specified continued service requirements, the PSUs will settle in cash or a combination of cash and up to 50% of equivalent value in the Company’s common stock, at the discretion of the Compensation Committee of the Board of Directors. At December 31, 2016, there were 368,394 PSUs outstanding (121,168, 129,852 and 117,374 related to performance periods ending December 31, 2016, 2017 and 2018, respectively). The Company has recorded both current and long-term liabilities for this liability-based compensation award.

In February 2014, the Company granted strategic performance share units (SPSUs) to the executive officers of the Company. The number of target SPSUs was established at the beginning of a two-calendar year performance period. The final value of SPSUs earned was based upon the level of the Company’s free cash flow achieved for 2015 and 2014. All SPSU awards were paid out during 2016.

Employee Stock Purchase Plan (ESPP)

Eligible employees are allowed to purchase shares of the Company’s common stock at a discount during six-month offering periods beginning on January 1 and July 1 of each year and ending on June 30 and December 31 of each year, respectively.

The following table summarizes ESPP activity (in thousands except shares):



	Years ended December 31,
	2016		2015		2014
Cash received for shares issued	$	3,681	$	4,803	$	4,870
Compensation expense	$	1,492	$	835	$	1,078
Shares issued		290,987		332,467		246,480

401(k)/Profit Sharing Plan

The Company maintains a defined contribution profit sharing plan for employees who have satisfied minimum service requirements. Employees may contribute up to 75% of their eligible earnings to the plan subject to the contribution limitations imposed by the Internal Revenue Service. The Company provides a nondiscretionary match of 100% of an employee’s contributions to the plan, up to 4% of the employee’s salary. The Company made contributions of $8.7 million, $13.9 million and $16.7 million 2016, 2015 and 2014, respectively.

Non-Qualified Deferred Compensation Plans

The Company has a non-qualified deferred compensation plan which allows senior management to defer up to 75% of their base salary, up to 100% of their bonus, up to 100% of the cash portion of their PSU compensation and up to 100% of the vested RSUs to the plan. The Company also has a non-qualified deferred compensation plan for its non-employee directors which allows each director to defer up to 100% of their cash compensation paid by the Company and up to 100% of the vested RSUs to the plan. Payments are made to participants based on their annual enrollment elections and plan balances. Participants earn a return on their deferred compensation that is based on hypothetical investments in certain mutual funds. Changes in market value of these hypothetical participant investments are reflected as an adjustment to the deferred compensation liability of the Company with an offset to compensation expense. The Company makes contributions that approximate the participant deferrals into various investments, principally life insurance that is invested in mutual funds similar to the participants’ hypothetical investment elections. Changes in market value of the investments and life insurance are reflected as adjustments to the deferred compensation plan asset with an offset to other income (expense) in the consolidated statements of operations.

The following table summarizes deferred compensation balances (in thousands):



		December 31,
	Balance sheet location	2016		2015
Deferred compensation assets	Intangible and other long-term assets, net	$	12,360	$	11,548
Deferred compensation liabilities, short-term	Accounts payable	$	1,115	$	721
Deferred compensation liabilities, long-term	Other long-term liabilities	$	18,489	$	17,367

Supplemental Executive Retirement Plan

The Company has a supplemental executive retirement plan (SERP). The SERP provides retirement benefits to the Company’s executive officers and certain other designated key employees. The SERP is an unfunded, non-qualified defined contribution retirement plan, and all contributions under the plan are unfunded credits to a notional account maintained for each participant. Under the SERP, the Company will generally make annual contributions to a retirement account based on age and years of service. The participants in the plan receive contributions ranging from 5% to 35% of salary and annual cash bonus, which totaled $2.2 million, $1.2 million and $1.2 million during 2016, 2015 and 2014, respectively. The Company recorded compensation expense of $1.4 million, $2.1 million and $1.6 million in general and administrative expenses during 2016, 2015 and 2014, respectively. The Company may also make discretionary contributions to a participant’s account. During 2016, 2015 and 2014, the Company paid $1.4 million, $3.7 million and $3.0 million, respectively, to eligible participants in the SERP.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

Income Taxes

12 Months Ended

Dec. 31, 2016

Income Taxes [Abstract]

Income Taxes

(7) Income Taxes

The components of income (loss) from continuing operations before income taxes are as follows (in thousands):



	Years ended December 31,
	2016		2015		2014
Domestic	$	(1,097,109)	$	(2,069,019)	$	372,672
Foreign		(3,232)		9,236		69,517
	$	(1,100,341)	$	(2,059,783)	$	442,189

The components of income tax expense (benefit) are as follows (in thousands):



	Years ended December 31,
	2016		2015		2014
Current:
Federal	$	(101,578)	$	(952)	$	150,997
State		(159)		2,818		11,339
Foreign		19,156		19,227		36,287
		(82,581)		21,093		198,623
Deferred:
Federal		(179,721)		(249,193)		(33,172)
State		(9,348)		(10,034)		648
Foreign		4,649		(13,886)		(4,700)
		(184,420)		(273,113)		(37,224)
	$	(267,001)	$	(252,020)	$	161,399

Income tax expense (benefit) differs from the amounts computed by applying the U.S. Federal income tax rate of 35% to income (loss) before income taxes as follows (in thousands):



	Years ended December 31,
	2016		2015		2014
Computed expected tax expense (benefit)	$	(385,119)	$	(720,923)	$	154,766
Increase (decrease) resulting from
State and foreign income taxes		(8,038)		(6,353)		8,467
Reduction in value of assets		115,725		464,395		-
Other		10,431		10,861		(1,834)
Income tax expense (benefit)	$	(267,001)	$	(252,020)	$	161,399

The tax effects of temporary differences that give rise to significant components of deferred income tax assets and liabilities are as follows (in thousands):



	December 31,
	2016		2015
Deferred tax assets:
Allowance for doubtful accounts	$	9,172	$	8,275
Operating loss and tax credit carryforwards		85,383		92,798
Compensation and employee benefits		59,351		59,310
Decommissioning liabilities		40,994		30,400
Other		51,069		57,768
		245,969		248,551
Valuation allowance		(6,722)		(5,395)
Net deferred tax assets		239,247		243,156

Deferred tax liabilities:
Property, plant and equipment		352,683		469,728
Notes receivable		14,796		14,796
Goodwill and other intangible assets		98,868		119,661
Other		16,511		22,040
Deferred tax liabilities		482,858		626,225
Net deferred tax liability	$	243,611	$	383,069

The net deferred tax assets reflect management’s estimate of the amount that will be realized from future profitability and the reversal of taxable temporary differences that can be predicted with reasonable certainty. A valuation allowance has been recognized on a portion of the state net operating loss carryforward deferred tax asset. After considering all available evidence at December 31, 2016, the Company determined that it was more likely than not that a portion of the carryforward would not be realized. Accordingly, the Company increased deferred income tax expense by an additional $1.3 million of the valuation allowance.

At December 31, 2016, the Company had $320.8 million in U.S. net operating loss carryforwards, which are available to reduce future or prior taxable income. The expiration dates for utilization of the loss carryforwards are 2021 through 2036. At December 31, 2016, the Company also had various state net operating loss carryforwards with expiration dates from 2017 to 2031. A net deferred tax asset of $26.5 million reflects the expected future tax benefit for the state loss carryforwards. At December 31, 2016, the Company also had a U.S. foreign tax credit carryforward of $49.1 million with expiration dates from 2021 to 2026.

The Company has not provided U.S. income tax expense on earnings of its foreign subsidiaries, since the Company has reinvested or expects to reinvest outside the U.S. the undistributed earnings indefinitely. At December 31, 2016, the Company’s foreign subsidiaries had an accumulated deficit in earnings. The Company does not intend to repatriate the earnings of its foreign subsidiaries. The Company has not provided U.S. income taxes for such earnings, except to the extent that such earnings were previously subject to U.S. income taxes. These earnings could become subject to U.S. income tax if remitted, or if deemed remitted as a dividend. It is not practicable to estimate the amount of taxes that might be payable on such undistributed earnings.

The Company files income tax returns in the U.S., including federal and various state filings, and certain foreign jurisdictions. The number of years that are open under the statute of limitations and subject to audit varies depending on the tax jurisdiction. The Company remains subject to U.S. federal tax examinations for years after 2012.

The Company had unrecognized tax benefits of $29.9 million, $29.7 million and $30.3 million as of December 31, 2016, 2015 and 2014, respectively, all of which would impact the Company’s effective tax rate if recognized.

The activity in unrecognized tax benefits is as follows (in thousands):



	Years ended December 31,
	2016		2015		2014
Unrecognized tax benefits,
December 31, 2015, 2014 and 2013, respectively	$	29,715	$	30,344	$	29,899
Additions based on tax positions related to prior years		6,874		6,752		7,860
Reductions based on tax positions related to prior years		(3,582)		-		(5,438)
Reductions as a result of a lapse of the applicable statute of limitations		(3,051)		-		(1,977)
Reductions relating to settlements with taxing authorities		-		(7,381)		-
Unrecognized tax benefits,
December 31, 2016, 2015 and 2014, respectively	$	29,956	$	29,715	$	30,344

The Company recorded $2.5 million, $1.0 million and $0.6 million of interest and penalty for 2016, 2015 and 2014, respectively, classified as a component of income tax expense in the consolidated statements of operations. The amounts in the table above include cumulative accrued interest and penalties of $7.4 million, $4.6 million and $5.0 million at December 31, 2016, 2015 and 2014, respectively, which are included in other non-current liabilities on the consolidated balance sheets.

Segment Information

12 Months Ended

Dec. 31, 2016

Segment Information [Abstract]

Segment Information

(8) Segment Information

Business Segments

The Drilling Products and Services segment rents and sells bottom hole assemblies, premium drill pipe, tubulars and specialized equipment for use with onshore and offshore oil and gas well drilling, completion, production and workover activities. It also provides on-site accommodations and machining services. The Onshore Completion and Workover Services segment provides pressure pumping services used to complete and stimulate production in new oil and gas wells, fluid handling services and well servicing rigs that provide a variety of well completion, workover and maintenance services. The Production Services segment provides intervention services such as coiled tubing, cased hole and mechanical wireline, hydraulic workover and snubbing, production testing and optimization, and remedial pumping services. The Technical Solutions segment provides services typically requiring specialized engineering, manufacturing or project planning, including well containment systems, stimulation and sand control services and well plug and abandonment services. It also includes production handling arrangements and the production and sale of oil and gas.

The Company evaluates the performance of its reportable segments based on income or loss from operations. The segment measure is calculated as follows: segment revenues less segment operating expenses, depreciation, depletion, amortization and accretion expense, reduction in value of assets and allocated corporate general and administrative expenses. Corporate general and administrative expenses are allocated to the segments based primarily on specific identification and, to the extent that such identification is not practical, other methods which the Company believes to be a reasonable reflection of the utilization of services provided. The Company believes this segment measure is useful in evaluating the performance of its reportable segments because it highlights operating trends and aids analytical comparisons.

Summarized financial information for the Company’s segments is as follows (in thousands):



2016

			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
Revenues	$	293,543	$	523,965	$	348,363	$	284,176	$	-	$	1,450,047
Cost of services and rentals (exclusive of
depreciation, depletion, amortization
and accretion)		136,719		515,784		276,223		194,548		-		1,123,274
Depreciation, depletion, amortization
and accretion		161,378		209,455		95,416		43,722		-		509,971
General and administrative expenses		89,574		91,508		76,817		88,707		-		346,606
Reduction in value of assets		48,903		190,835		235,067		25,600		-		500,405
Loss from operations		(143,031)		(483,617)		(335,160)		(68,401)		-		(1,030,209)
Interest expense, net		-		-		(1,343)		3,553		(94,963)		(92,753)
Other expense		-		-		-		-		22,621		22,621
Loss from continuing operations
before income taxes	$	(143,031)	$	(483,617)	$	(336,503)	$	(64,848)	$	(72,342)	$	(1,100,341)



2015

			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
Revenues	$	547,530	$	934,274	$	795,215	$	497,546	$	-	$	2,774,565
Cost of services and rentals (exclusive of
depreciation, depletion, amortization
and accretion)		178,629		773,119		612,578		301,486		-		1,865,812
Depreciation, depletion, amortization
and accretion		187,336		225,667		136,992		62,152		-		612,147
General and administrative expenses		120,637		121,289		146,192		122,590		-		510,708
Reduction in value of assets		40,237		783,229		790,517		124,904		-		1,738,887
Income (loss) from operations		20,691		(969,030)		(891,064)		(113,586)		-		(1,952,989)
Interest expense, net		-		-		(2,013)		1,707		(97,012)		(97,318)
Other expense		-		-		-		-		(9,476)		(9,476)
Income (loss) from continuing operations
before income taxes	$	20,691	$	(969,030)	$	(893,077)	$	(111,879)	$	(106,488)	$	(2,059,783)



2014

			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
Revenues	$	852,499	$	1,732,833	$	1,402,815	$	568,475	$	-	$	4,556,622
Cost of services and rentals (exclusive of
depreciation, depletion, amortization
and accretion)		255,613		1,205,443		967,440		306,337		-		2,734,833
Depreciation, depletion, amortization
and accretion		179,934		233,430		171,380		66,070		-		650,814
General and administrative expenses		141,762		159,687		195,731		127,191		-		624,371
Income from operations		275,190		134,273		68,264		68,877		-		546,604
Interest expense, net		-		-		-		1,577		(98,311)		(96,734)
Other expense		-		-		-		-		(7,681)		(7,681)
Income (loss) from continuing operations
before income taxes	$	275,190	$	134,273	$	68,264	$	70,454	$	(105,992)	$	442,189



Identifiable Assets
			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical		Consolidated
	Services		Services		Services		Solutions		Total
December 31, 2016	$	849,046	$	1,573,801	$	598,909	$	448,499	$	3,470,255
December 31, 2015	$	1,154,425	$	1,929,185	$	1,036,485	$	794,149	$	4,914,244
December 31, 2014	$	1,212,900	$	2,993,824	$	2,170,534	$	940,524	$	7,317,782



Capital Expenditures
			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical		Consolidated
	Services		Services		Services		Solutions		Total
December 31, 2016	$	35,504	$	20,185	$	20,939	$	3,920	$	80,548
December 31, 2015	$	124,015	$	103,001	$	77,537	$	53,673	$	358,226
December 31, 2014	$	261,451	$	152,742	$	102,171	$	99,738	$	616,102

Geographic Segments

The Company attributes revenue to various countries based on the location where services are performed or the destination of the drilling products or equipment sold or rented. Long-lived assets consist primarily of property, plant and equipment and are attributed to various countries based on the physical location of the asset at the end of a period. The Company’s revenue attributed to the U.S. and to other countries and the value of its long-lived assets by those locations is as follows (in thousands):




Revenues
	Years ended December 31,
	2016		2015		2014
United States	$	1,080,513	$	2,185,071	$	3,848,929
Other Countries		369,534		589,494		707,693
Total	$	1,450,047	$	2,774,565	$	4,556,622

Long-Lived Assets
			December 31,
			2016		2015
United States			$	1,288,077	$	1,799,418
Other Countries				317,288		323,873
Total, net			$	1,605,365	$	2,123,291

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Commitments And Contingencies	12 Months Ended
Commitments And Contingencies	Dec. 31, 2016
Commitments And Contingencies [Abstract]
Commitments And Contingencies	(9) Commitments and Contingencies The Company leases many of its office, service and assembly facilities under operating leases. In addition, the Company also leases certain assets used in providing services under operating leases. The leases expire at various dates over an extended period of time. Total rent expense was $24.1 million, $29.6 million and $26.2 million during 2016, 2015 and 2014, respectively. Future minimum lease payments under non-cancelable leases for the five years ending December 31, 2017 through 2021 and thereafter are as follows: $42.7 million, $27.5 million, $16.8 million, $12.2 million and $29.8 million, respectively. Due to the nature of the Company’s business, the Company is involved, from time to time, in routine litigation or subject to disputes or claims regarding its business activities. Legal costs related to these matters are expensed as incurred. However, based on current circumstances, the Company does not believe that the ultimate resolution of these proceedings, after considering available defenses and any insurance coverage or indemnification rights, will have a material adverse effect on its financial position, results of operations or cash flows.

Fair Value Measurements

12 Months Ended

Dec. 31, 2016

Fair Value Measurements [Abstract]

Fair Value Measurements

(10) Fair Value Measurements

The following tables provide a summary of the financial assets and liabilities measured at fair value on a recurring basis (in thousands):



			Fair Value Measurements at Reporting Date Using
	December 31, 2016		Level 1		Level 2		Level 3
Intangible and other long-term assets, net
Non-qualified deferred compensation assets	$	12,360	$	368	$	11,992		-
Interest rate swaps	$	8,579		-	$	8,579		-
Accounts payable
Non-qualified deferred compensation liabilities	$	1,115		-	$	1,115		-
Other long-term liabilities
Non-qualified deferred compensation liabilities	$	18,489		-	$	18,489		-

	December 31, 2015		Level 1		Level 2		Level 3
Intangible and other long-term assets, net
Non-qualified deferred compensation assets	$	11,548	$	368	$	11,180		-
Interest rate swaps	$	6,905		-	$	6,905		-
Accounts payable
Non-qualified deferred compensation liabilities	$	721		-	$	721		-
Other long-term liabilities
Non-qualified deferred compensation liabilities	$	17,367		-	$	17,367		-

The Company’s non-qualified deferred compensation plans allow officers, certain highly compensated employees and non-employee directors to defer receipt of a portion of their compensation and contribute such amounts to one or more hypothetical investment funds (see note 6). The Company entered into separate trust agreements, subject to general creditors, to segregate assets of each plan and reports the accounts of the trusts in its consolidated financial statements. These investments are reported at fair value based on unadjusted quoted prices in active markets for identifiable assets and observable inputs for similar assets and liabilities, which represent Levels 1 and 2, respectively, in the fair value hierarchy.

At December 31, 2016, the Company had three interest rate swap agreements related to its fixed rate debt maturing in 2021 for notional amounts of $100 million each (see note 11).

The following table reflects the fair value measurements used in testing the impairment of long-lived assets and goodwill (in thousands):



	Years ended December 31,
	2016				2015
	Impairment		Fair Value		Impairment		Fair Value
Goodwill	$	330,500	$	668,864	$	1,326,701	$	998,288
Intangible assets	$	68,865	$	-	$	68,890	$	6,345
Property, plant and equipment, net	$	74,938	$	294,457	$	177,442	$	179,612

Fair value is measured as of the impairment date using Level 3 inputs. See note 3 for discussion of reduction in value of assets recorded during 2016 and 2015.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Derivative Financial Instruments

12 Months Ended

Dec. 31, 2016

Derivative Financial Instruments [Abstract]

Derivative Financial Instruments

(11) Derivative Financial Instruments

From time to time, the Company may enter into interest rate swaps in an attempt to achieve a more balanced debt portfolio between fixed and variable debt. The Company does not use derivative financial instruments for trading or speculative purposes.

At December 31, 2016, the Company had three interest rate swaps for notional amounts of $100 million each related to its 7 1/8% senior notes maturing in December 2021. These transactions were designated as fair value hedges since the swaps hedged against the change in fair value of fixed rate debt resulting from changes in interest rates. The Company recorded a derivative asset of $8.6 million and $6.9 million within intangible and other long term assets in the consolidated balance sheets at December 31, 2016 and 2015, respectively, relating to these swaps.

The location and effect of the derivative instrument on the consolidated statements of operations presented on a pre-tax basis is as follows (in thousands):



		Years ended December 31,
Effect of derivative instrument	Location of (gain) loss recognized	2016		2015		2014
Interest rate swap	Interest expense, net	$	2,306	$	(1,932)	$	(11,054)
Hedged item - debt	Interest expense, net		(3,980)		(790)		7,208
		$	(1,674)	$	(2,722)	$	(3,846)

During 2016, 2015 and 2014 $1.7 million, $2.7 million and $3.8 million of interest income, respectively, was related to the ineffectiveness associated with these fair value hedges. Hedge ineffectiveness represents the difference between the changes in fair value of the derivative instruments and the changes in fair value of the fixed rate debt attributable to changes in the benchmark interest rate.

Subsequent to year-end, during January 2017, the Company sold these interest rate swaps to the counterparties for $0.8 million.

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Discontinued Operations

12 Months Ended

Dec. 31, 2016

Discontinued Operations [Abstract]

Discontinued Operations

(12) Discontinued Operations

During the first quarter of 2016, the Company’s management determined that the conventional decommissioning business no longer met the held for sale criteria. Accordingly, property, plant and equipment related to the conventional decommissioning business was reclassified back to continuing operations.

At December 31, 2016, the assets of the subsea construction business were being actively marketed and the Company’s management was committed to selling the remaining assets, which were classified as held for sale and were included in the Technical Solutions segment.

The following table summarizes the components of loss from discontinued operations, net of tax (in thousands) included in the consolidated statements of operations:



	Years ended December 31,
	2016		2015		2014
Revenues	$	-	$	18,723	$	145,463

Loss from discontinued operations, net of tax expense/(benefit) of $1,908, ($5,626) and ($19,330), respectively	$	(53,559)	$	(46,955)	$	(22,973)

For 2015 and 2014, loss from discontinued operations included $7.5 million and $21.7 million, respectively, of loss related to the conventional decommissioning business.

During 2016, loss from discontinued operations included $33.0 million for the reduction in value of marine vessels in the subsea construction business.

During 2015, loss from discontinued operations included $25.8 million and $8.8 million for the reduction in value of marine vessels in the subsea construction and conventional decommissioning businesses, respectively.

During 2014, loss from discontinued operations included an $18.8 million gain related to the sale of marine vessels and equipment in the subsea construction business.

The following summarizes the assets and liabilities related to the businesses reported as discontinued operations (in thousands):



		December 31,
		2016		2015
Current assets	$	158	$	2,600
Property, plant and equipment, net		27,000		92,634
Total assets	$	27,158	$	95,234
Current liabilities	$	8,653	$	4,661

At December 31, 2015, assets held for sale also included $26.6 million of property, plant and equipment related to the conventional decommissioning business.

- Definition

The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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+ Details

Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2016
Related Party Transactions [Abstract]
Related Party Transactions	(13) Related Party Transactions The Company’s President and Chief Executive Officer serves as an independent director of the board of Linn Energy, LLC (Linn), an independent oil and gas development company. The Company recorded revenues from Linn of $5.4 million, $7.2 million and $19.7 million during 2016, 2015 and 2014, respectively. The Company had trade receivables from Linn of $0.5 million and $2.0 million at December 31, 2016 and 2015, respectively. During 2014, the Company purchased services, products and equipment, as well as leased certain facilities, from companies affiliated with a former officer, who retired during the first quarter of 2015, of one of its subsidiaries. During 2014 these transactions totaled $221.1 million, of which, $92.1 million was purchased from ORTEQ Energy Services, a heavy equipment construction company which also manufactures pressure pumping equipment, $0.7 million was purchased from Ortowski Construction, primarily related to the manufacture of pressure pumping units, $21.6 million was paid to Resource Transport, LLC, related to the transportation of sand used in pressure pumping activities, $79.3 million was purchased from Texas Specialty Sands, LLC primarily for the purchase of sand used for pressure pumping activities, $25.5 million was purchased from ProFuel, LLC, primarily related to the purchase of diesel used to operate equipment and trucks and $1.9 million was related to facilities leased from Timber Creek Real Estate Partners.

Interim Financial Information

12 Months Ended

Dec. 31, 2016

Interim Financial Information [Abstract]

Interim Financial Information

(14) Interim Financial Information (Unaudited)

The following is a summary of consolidated interim financial information (in thousands):



	2016
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Revenues	$	413,133	$	356,271	$	326,225	$	354,418
Cost of services and rentals (exclusive of
depreciation, depletion, amortization and accretion)		285,339		258,635		258,168		321,132
Depreciation, depletion, amortization and accretion		136,672		132,037		123,308		117,954
Reduction in value of assets		2,198		460,283		1,963		35,961
Loss from continuing operations		(84,536)		(468,632)		(113,913)		(166,259)
Loss from discontinued operations, net of tax		(2,267)		(2,225)		(4,085)		(44,982)
Net loss	$	(86,803)	$	(470,857)	$	(117,998)	$	(211,241)

Loss per share from continuing operations:
Basic and diluted	$	(0.56)	$	(3.09)	$	(0.75)	$	(1.10)
Loss per share from discontinued operations:
Basic and diluted	$	(0.01)	$	(0.02)	$	(0.03)	$	(0.30)

	2015
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Revenues	$	917,235	$	710,784	$	601,396	$	545,150
Cost of services and rentals (exclusive of
depreciation, depletion, amortization and accretion)		582,246		465,533		420,485		397,548
Depreciation, depletion, amortization and accretion		162,220		158,352		146,757		144,818
Reduction in value of assets		-		807,637		755,632		175,618
Loss from continuing operations		(1,497)		(775,132)		(816,587)		(214,547)
Loss from discontinued operations, net of tax		(9,640)		(9,857)		(4,610)		(22,848)
Net loss	$	(11,137)	$	(784,989)	$	(821,197)	$	(237,395)

Loss per share from continuing operations:
Basic and diluted	$	(0.02)	$	(5.15)	$	(5.42)	$	(1.43)
Loss per share from discontinued operations:
Basic and diluted	$	(0.06)	$	(0.07)	$	(0.03)	$	(0.15)

Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2016

Valuation and Qualifying Accounts [Abstract]

Schedule II Valuation and Qualifying Accounts

SUPERIOR ENERGY SERVICES, INC. AND SUBSIDIARIES

Schedule II Valuation and Qualifying Accounts

Years Ended December 31, 2016, 2015 and 2014

(in thousands)



		Balance at the		Charged to
		beginning of		costs and				Discontinued		Balance at the
Description		the year		expenses		Deductions		operations		end of the year
2016:
	Allowance for doubtful accounts	$	28,242	$	7,825	$	6,327	$	-	$	29,740
2015:
	Allowance for doubtful accounts	$	22,076	$	14,341	$	4,795	$	3,380	$	28,242
2014:
	Allowance for doubtful accounts	$	31,030	$	6,299	$	10,639	$	4,614	$	22,076

Summary Of Significant Accounting Policies (Policy)

12 Months Ended

Dec. 31, 2016

Summary Of Significant Accounting Policies [Abstract]

Basis of Presentation

Business

Use of Estimates

Major Customers and Concentration of Credit Risk

Cash Equivalents

The Company considers all short-term investments with a maturity of 90 days or less when purchased to be cash equivalents.

Accounts Receivable and Allowances

Inventory



	December 31,
	2016		2015
Finished goods	$	49,888	$	71,951
Raw materials		17,948		23,418
Work-in-process		5,214		18,203
Supplies and consumables		30,029		35,189
Total	$	103,079	$	148,761

Property, Plant and Equipment

Buildings and improvements	5	to	40	years
Marine vessels and equipment	5	to	25	years
Machinery and equipment	2	to	25	years
Automobiles, trucks, tractors and trailers	3	to	10	years
Furniture and fixtures	2	to	10	years

Reduction in Value of Long-Lived Assets Text Block

Reduction in Value of Long-Lived Assets

Goodwill

The following table summarizes the activity for the Company’s goodwill (in thousands):



			Onshore
	Drilling		Completion
	Products		and Workover		Production
	and Services		Services		Services		Total

Balance, December 31, 2014	$	142,839	$	1,419,550	$	906,020	$	2,468,409
Acquisition activities		-		-		1,170		1,170
Reduction in value of assets		-		(740,000)		(586,701)		(1,326,701)
Foreign currency translation adjustment		(1,557)		-		(1,220)		(2,777)
Other		-		44,000		(44,000)		-
Balance, December 31, 2015		141,282		723,550		275,269		1,140,101
Reduction in value of assets		-		(140,000)		(190,500)		(330,500)
Foreign currency translation adjustment		(5,321)		-		(363)		(5,684)
Balance, December 31, 2016	$	135,961	$	583,550	$	84,406	$	803,917

Notes Receivable

Intangible and Other Long-Term Assets

Intangible assets consist of the following (in thousands):



		December 31,
		2016						2015
	Estimated	Gross		Accumulated		Net		Gross		Accumulated		Net
	Useful Lives	Amount		Amortization		Balance		Amount		Amortization		Balance
Customer relationships	17 years	$	164,603	$	(52,747)	$	111,856	$	257,364	$	(65,209)	$	192,155
Tradenames	10 years		30,519		(14,123)		16,396		36,119		(15,371)		20,748
Non-compete agreements	3 years		2,790		(2,718)		72		3,242		(2,940)		302
Total		$	197,912	$	(69,588)	$	128,324	$	296,725	$	(83,520)	$	213,205

Decommissioning Liabilities

The following table summarizes the activity for the Company’s decommissioning liabilities (in thousands):



	December 31,
	2016		2015
Decommissioning liabilities, December 31, 2015 and 2014, respectively	$	117,942	$	88,000
Revisions in estimated timing and cash flows		(2,132)		24,660
Accretion		6,959		5,016
Liability acquisitions and dispositions		908		266
Total decommissioning liabilities, December 31, 2016 and 2015, respectively	$	123,677	$	117,942

Revenue Recognition

Income Taxes

Earnings (Loss) per Share

Earnings per Share

Fair Value Measurements

Level 1: Unadjusted quoted prices in active markets for identical assets and liabilities;

Level 3: Unobservable inputs reflecting management’s own assumptions about the inputs used in pricing the asset or liability.

Financial Instruments

Foreign Currency

Stock-Based Compensation

Derivative Instruments and Hedging Activities

Self Insurance Reserves

Self-Insurance Reserves

Recently Issued Accounting Pronouncements

Recently Issued Accounting Guidance

Subsequent Events

Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Summary Of Significant Accounting Policies [Abstract]

Schedule of Inventory, Current [Table Text Block]



	December 31,
	2016		2015
Finished goods	$	49,888	$	71,951
Raw materials		17,948		23,418
Work-in-process		5,214		18,203
Supplies and consumables		30,029		35,189
Total	$	103,079	$	148,761

Estimated Useful Lives Of The Related Assets

Buildings and improvements	5	to	40	years
Marine vessels and equipment	5	to	25	years
Machinery and equipment	2	to	25	years
Automobiles, trucks, tractors and trailers	3	to	10	years
Furniture and fixtures	2	to	10	years

Summary Of Activity Of Goodwill



			Onshore
	Drilling		Completion
	Products		and Workover		Production
	and Services		Services		Services		Total

Balance, December 31, 2014	$	142,839	$	1,419,550	$	906,020	$	2,468,409
Acquisition activities		-		-		1,170		1,170
Reduction in value of assets		-		(740,000)		(586,701)		(1,326,701)
Foreign currency translation adjustment		(1,557)		-		(1,220)		(2,777)
Other		-		44,000		(44,000)		-
Balance, December 31, 2015		141,282		723,550		275,269		1,140,101
Reduction in value of assets		-		(140,000)		(190,500)		(330,500)
Foreign currency translation adjustment		(5,321)		-		(363)		(5,684)
Balance, December 31, 2016	$	135,961	$	583,550	$	84,406	$	803,917

Composition Of Intangible And Other Long-term Assets



		December 31,
		2016						2015
	Estimated	Gross		Accumulated		Net		Gross		Accumulated		Net
	Useful Lives	Amount		Amortization		Balance		Amount		Amortization		Balance
Customer relationships	17 years	$	164,603	$	(52,747)	$	111,856	$	257,364	$	(65,209)	$	192,155
Tradenames	10 years		30,519		(14,123)		16,396		36,119		(15,371)		20,748
Non-compete agreements	3 years		2,790		(2,718)		72		3,242		(2,940)		302
Total		$	197,912	$	(69,588)	$	128,324	$	296,725	$	(83,520)	$	213,205

Summary Of The Activity For Company's Decommissioning Liabilities



	December 31,
	2016		2015
Decommissioning liabilities, December 31, 2015 and 2014, respectively	$	117,942	$	88,000
Revisions in estimated timing and cash flows		(2,132)		24,660
Accretion		6,959		5,016
Liability acquisitions and dispositions		908		266
Total decommissioning liabilities, December 31, 2016 and 2015, respectively	$	123,677	$	117,942

Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2016

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information



	Years ended December 31,
	2016		2015		2014
Cash paid for interest	$	93,353	$	93,946	$	102,880

Cash paid for income taxes, net of refunds	$	(28,933)	$	40,074	$	127,132

Details of business acquisitions:
Fair value of assets	$	-	$	-	$	29,468
Fair value of liabilities		-		-		(5,125)
Cash paid		-		-		24,343
Less cash acquired		-		-		(16)
Net cash paid for acquisitions	$	-	$	-	$	24,327

Non-cash investing activity:

Capital expenditures included in accounts payable and accrued expenses	$	4,905	$	28,704	$	49,118

Reduction in Value of Assets (Tables)

12 Months Ended

Dec. 31, 2016

Reduction In Value Of Assets [Abstract]

Reduction In Value Of Assets


	Years ended December 31,
	2016		2015
Reduction in value of goodwill	$	330,500	$	1,326,701
Reduction in value of long-lived assets		143,803		330,194
Retirements of long-lived assets		26,102		42,545
Reduction in value of assets related to sale of a business		-		39,447
Total reduction in value of assets	$	500,405	$	1,738,887

Property, Plant And Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant And Equipment [Abstract]

Summary Of Property, Plant And Equipment



	December 31,
	2016		2015
Machinery and equipment	$	3,513,907	$	3,771,046
Buildings, improvements and leasehold improvements		307,658		318,906
Automobiles, trucks, tractors and trailers		37,103		45,013
Furniture and fixtures		66,045		67,483
Construction-in-progress		11,048		74,683
Land		59,774		58,731
Oil and gas producing assets		64,169		66,285
Total		4,059,704		4,402,147
Accumulated depreciation and depletion		(2,454,339)		(2,278,856)
Property, plant and equipment, net	$	1,605,365	$	2,123,291

Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt [Abstract]

Summary Of Long-Term Debt



	December 31,
	2016				2015
	Long-term		Current		Long-term		Current
Senior Notes due May 2019	$	500,000	$	-	$	500,000	$	-
Senior Notes due December 2021		800,000		-		800,000		-
Term loan		-		-		305,000		20,000
Other		-		-		3,089		9,957
Total debt, gross		1,300,000		-		1,608,089		29,957
Unamortized debt issuance costs		(15,400)		-		(19,826)		-
Total debt, net	$	1,284,600	$	-	$	1,588,263	$	29,957

Schedule Of Maturities Of Long-Term Debt



2017	$	-
2018		-
2019		500,000
2020		-
2021		800,000
Thereafter		-
Total	$	1,300,000

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

+ Details

Stock-Based And Long-Term Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Stock-Based And Long-Term Compensation [Abstract]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]



Compensation Expense	Years ended December 31,
	2016		2015		2014
Stock options	$	4,870	$	3,663	$	3,900
Restricted stock		382		9,219		15,800
Restricted stock units		24,762		19,699		11,282
Performance and strategic performance share units		10,167		12,991		13,092
Total	$	40,181	$	45,572	$	44,074

Tax Benefit	Years ended December 31,
	2016		2015		2014
Stock options	$	1,802	$	1,355	$	1,443
Restricted stock		141		3,411		5,846
Restricted stock units		9,162		7,289		4,174
Total	$	11,105	$	12,055	$	11,463

Summary Of The Valuation Assumptions Used To Calculate The Fair Value Of Stock Option Grants



	Years ended December 31,
	2016			2015			2014
Weighted average fair value of stock options granted	$	3.61		$	6.25		$	6.95

Black-Scholes-Merton Assumptions:
Risk free interest rate		1.46	%		1.33	%		1.42	%
Expected life (years)		5			5			4
Volatility		55.72	%		47.07	%		34.50	%
Dividend yield		3.28			1.30			1.23

Summary Of Stock Option Activity



	Number of Options	Weighted Average Option Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding as of December 31, 2015	4,591,141	$	23.60	5.3	$	256
Granted	2,121,417	$	9.76
Exercised	(40,723)	$	12.86
Forfeited	(289,820)	$	9.76
Expired	(371,181)	$	27.21
Outstanding as of December 31, 2016	6,010,834	$	19.23	6.0		14,145
Exercisable as of December 31, 2016	3,671,241	$	23.86	4.2	$	1,104
Options expected to vest as of December 31, 2016	2,339,593	$	11.97	8.8	$	13,041

Summary Of Non-Vested Stock Option Activity



	Number of Options	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2015	1,102,879	$	20.81
Granted	2,121,417	$	9.76
Vested	(594,883)	$	21.54
Forfeited	(289,820)	$	9.76
Non-vested as of December 31, 2016	2,339,593	$	11.97

Summary Of The Status Of Restricted Stock



	Number of Shares	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2015	292,937	$	23.13
Vested	(291,779)	$	23.13
Forfeited	(1,158)	$	23.03
Non-vested as of December 31, 2016	-	$	-

Summary Of Restricted Stock Unit Activity



	Number of RSUs	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2015	2,787,889	$	20.41
Granted	2,549,112	$	9.98
Vested	(1,127,930)	$	20.62
Forfeited	(522,779)	$	13.56
Non-vested as of December 31, 2016	3,686,292	$	14.10

Summary Of Employee Stock Purchase Plan Activity Table Text Block



	Years ended December 31,
	2016		2015		2014
Cash received for shares issued	$	3,681	$	4,803	$	4,870
Compensation expense	$	1,492	$	835	$	1,078
Shares issued		290,987		332,467		246,480

Summary of Deferred Compensation Balances Table Text Block



		December 31,
	Balance sheet location	2016		2015
Deferred compensation assets	Intangible and other long-term assets, net	$	12,360	$	11,548
Deferred compensation liabilities, short-term	Accounts payable	$	1,115	$	721
Deferred compensation liabilities, long-term	Other long-term liabilities	$	18,489	$	17,367

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Income Taxes [Abstract]

Schedule Of Components Of Income And Loss From Continuing Operations Before Income Taxes



	Years ended December 31,
	2016		2015		2014
Domestic	$	(1,097,109)	$	(2,069,019)	$	372,672
Foreign		(3,232)		9,236		69,517
	$	(1,100,341)	$	(2,059,783)	$	442,189

Schedule Of Components Of Income Tax Expense (Benefit)



	Years ended December 31,
	2016		2015		2014
Current:
Federal	$	(101,578)	$	(952)	$	150,997
State		(159)		2,818		11,339
Foreign		19,156		19,227		36,287
		(82,581)		21,093		198,623
Deferred:
Federal		(179,721)		(249,193)		(33,172)
State		(9,348)		(10,034)		648
Foreign		4,649		(13,886)		(4,700)
		(184,420)		(273,113)		(37,224)
	$	(267,001)	$	(252,020)	$	161,399

Schedule Of Effective Income Tax Rate Reconciliation



	Years ended December 31,
	2016		2015		2014
Computed expected tax expense (benefit)	$	(385,119)	$	(720,923)	$	154,766
Increase (decrease) resulting from
State and foreign income taxes		(8,038)		(6,353)		8,467
Reduction in value of assets		115,725		464,395		-
Other		10,431		10,861		(1,834)
Income tax expense (benefit)	$	(267,001)	$	(252,020)	$	161,399

Schedule Of Deferred Tax Assets and Liabilities



	December 31,
	2016		2015
Deferred tax assets:
Allowance for doubtful accounts	$	9,172	$	8,275
Operating loss and tax credit carryforwards		85,383		92,798
Compensation and employee benefits		59,351		59,310
Decommissioning liabilities		40,994		30,400
Other		51,069		57,768
		245,969		248,551
Valuation allowance		(6,722)		(5,395)
Net deferred tax assets		239,247		243,156

Deferred tax liabilities:
Property, plant and equipment		352,683		469,728
Notes receivable		14,796		14,796
Goodwill and other intangible assets		98,868		119,661
Other		16,511		22,040
Deferred tax liabilities		482,858		626,225
Net deferred tax liability	$	243,611	$	383,069

Summary Of Activity In Unrecognized Tax Benefits



	Years ended December 31,
	2016		2015		2014
Unrecognized tax benefits,
December 31, 2015, 2014 and 2013, respectively	$	29,715	$	30,344	$	29,899
Additions based on tax positions related to prior years		6,874		6,752		7,860
Reductions based on tax positions related to prior years		(3,582)		-		(5,438)
Reductions as a result of a lapse of the applicable statute of limitations		(3,051)		-		(1,977)
Reductions relating to settlements with taxing authorities		-		(7,381)		-
Unrecognized tax benefits,
December 31, 2016, 2015 and 2014, respectively	$	29,956	$	29,715	$	30,344

Segment Information (Tables)

12 Months Ended

Dec. 31, 2016

Segment Information [Abstract]

Schedule Of Segment Reporting Information



2016

			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
Revenues	$	293,543	$	523,965	$	348,363	$	284,176	$	-	$	1,450,047
Cost of services and rentals (exclusive of
depreciation, depletion, amortization
and accretion)		136,719		515,784		276,223		194,548		-		1,123,274
Depreciation, depletion, amortization
and accretion		161,378		209,455		95,416		43,722		-		509,971
General and administrative expenses		89,574		91,508		76,817		88,707		-		346,606
Reduction in value of assets		48,903		190,835		235,067		25,600		-		500,405
Loss from operations		(143,031)		(483,617)		(335,160)		(68,401)		-		(1,030,209)
Interest expense, net		-		-		(1,343)		3,553		(94,963)		(92,753)
Other expense		-		-		-		-		22,621		22,621
Loss from continuing operations
before income taxes	$	(143,031)	$	(483,617)	$	(336,503)	$	(64,848)	$	(72,342)	$	(1,100,341)



2015

			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
Revenues	$	547,530	$	934,274	$	795,215	$	497,546	$	-	$	2,774,565
Cost of services and rentals (exclusive of
depreciation, depletion, amortization
and accretion)		178,629		773,119		612,578		301,486		-		1,865,812
Depreciation, depletion, amortization
and accretion		187,336		225,667		136,992		62,152		-		612,147
General and administrative expenses		120,637		121,289		146,192		122,590		-		510,708
Reduction in value of assets		40,237		783,229		790,517		124,904		-		1,738,887
Income (loss) from operations		20,691		(969,030)		(891,064)		(113,586)		-		(1,952,989)
Interest expense, net		-		-		(2,013)		1,707		(97,012)		(97,318)
Other expense		-		-		-		-		(9,476)		(9,476)
Income (loss) from continuing operations
before income taxes	$	20,691	$	(969,030)	$	(893,077)	$	(111,879)	$	(106,488)	$	(2,059,783)



2014

			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
Revenues	$	852,499	$	1,732,833	$	1,402,815	$	568,475	$	-	$	4,556,622
Cost of services and rentals (exclusive of
depreciation, depletion, amortization
and accretion)		255,613		1,205,443		967,440		306,337		-		2,734,833
Depreciation, depletion, amortization
and accretion		179,934		233,430		171,380		66,070		-		650,814
General and administrative expenses		141,762		159,687		195,731		127,191		-		624,371
Income from operations		275,190		134,273		68,264		68,877		-		546,604
Interest expense, net		-		-		-		1,577		(98,311)		(96,734)
Other expense		-		-		-		-		(7,681)		(7,681)
Income (loss) from continuing operations
before income taxes	$	275,190	$	134,273	$	68,264	$	70,454	$	(105,992)	$	442,189

Schedule Of Identifiable Assets



Identifiable Assets
			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical		Consolidated
	Services		Services		Services		Solutions		Total
December 31, 2016	$	849,046	$	1,573,801	$	598,909	$	448,499	$	3,470,255
December 31, 2015	$	1,154,425	$	1,929,185	$	1,036,485	$	794,149	$	4,914,244
December 31, 2014	$	1,212,900	$	2,993,824	$	2,170,534	$	940,524	$	7,317,782

Schedule of Capital Expenditures Table Text Block



Capital Expenditures
			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical		Consolidated
	Services		Services		Services		Solutions		Total
December 31, 2016	$	35,504	$	20,185	$	20,939	$	3,920	$	80,548
December 31, 2015	$	124,015	$	103,001	$	77,537	$	53,673	$	358,226
December 31, 2014	$	261,451	$	152,742	$	102,171	$	99,738	$	616,102

Schedule Of Revenues By Geographic Segment




Revenues
	Years ended December 31,
	2016		2015		2014
United States	$	1,080,513	$	2,185,071	$	3,848,929
Other Countries		369,534		589,494		707,693
Total	$	1,450,047	$	2,774,565	$	4,556,622

Long-Lived Assets
			December 31,
			2016		2015
United States			$	1,288,077	$	1,799,418
Other Countries				317,288		323,873
Total, net			$	1,605,365	$	2,123,291

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Measurements [Abstract]

Summary Of Financial Assets And Liabilities Measured At Fair Value On Recurring Basis



			Fair Value Measurements at Reporting Date Using
	December 31, 2016		Level 1		Level 2		Level 3
Intangible and other long-term assets, net
Non-qualified deferred compensation assets	$	12,360	$	368	$	11,992		-
Interest rate swaps	$	8,579		-	$	8,579		-
Accounts payable
Non-qualified deferred compensation liabilities	$	1,115		-	$	1,115		-
Other long-term liabilities
Non-qualified deferred compensation liabilities	$	18,489		-	$	18,489		-

	December 31, 2015		Level 1		Level 2		Level 3
Intangible and other long-term assets, net
Non-qualified deferred compensation assets	$	11,548	$	368	$	11,180		-
Interest rate swaps	$	6,905		-	$	6,905		-
Accounts payable
Non-qualified deferred compensation liabilities	$	721		-	$	721		-
Other long-term liabilities
Non-qualified deferred compensation liabilities	$	17,367		-	$	17,367		-

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]



	Years ended December 31,
	2016				2015
	Impairment		Fair Value		Impairment		Fair Value
Goodwill	$	330,500	$	668,864	$	1,326,701	$	998,288
Intangible assets	$	68,865	$	-	$	68,890	$	6,345
Property, plant and equipment, net	$	74,938	$	294,457	$	177,442	$	179,612

Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2016

Derivative Financial Instruments [Abstract]

Location And Effect Of The Derivative Instrument On The Statements Of Operations



		Years ended December 31,
Effect of derivative instrument	Location of (gain) loss recognized	2016		2015		2014
Interest rate swap	Interest expense, net	$	2,306	$	(1,932)	$	(11,054)
Hedged item - debt	Interest expense, net		(3,980)		(790)		7,208
		$	(1,674)	$	(2,722)	$	(3,846)

Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2016

Discontinued Operations [Abstract]

Components Of Income (Loss) From Discontinued Operations



	Years ended December 31,
	2016		2015		2014
Revenues	$	-	$	18,723	$	145,463

Loss from discontinued operations, net of tax expense/(benefit) of $1,908, ($5,626) and ($19,330), respectively	$	(53,559)	$	(46,955)	$	(22,973)

Assets And Liabilities Of Disposal Groups



		December 31,
		2016		2015
Current assets	$	158	$	2,600
Property, plant and equipment, net		27,000		92,634
Total assets	$	27,158	$	95,234
Current liabilities	$	8,653	$	4,661

Interim Financial Information (Tables)

12 Months Ended

Dec. 31, 2016

Interim Financial Information [Abstract]

Schedule Of Interim Financial Information



	2016
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Revenues	$	413,133	$	356,271	$	326,225	$	354,418
Cost of services and rentals (exclusive of
depreciation, depletion, amortization and accretion)		285,339		258,635		258,168		321,132
Depreciation, depletion, amortization and accretion		136,672		132,037		123,308		117,954
Reduction in value of assets		2,198		460,283		1,963		35,961
Loss from continuing operations		(84,536)		(468,632)		(113,913)		(166,259)
Loss from discontinued operations, net of tax		(2,267)		(2,225)		(4,085)		(44,982)
Net loss	$	(86,803)	$	(470,857)	$	(117,998)	$	(211,241)

Loss per share from continuing operations:
Basic and diluted	$	(0.56)	$	(3.09)	$	(0.75)	$	(1.10)
Loss per share from discontinued operations:
Basic and diluted	$	(0.01)	$	(0.02)	$	(0.03)	$	(0.30)

	2015
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Revenues	$	917,235	$	710,784	$	601,396	$	545,150
Cost of services and rentals (exclusive of
depreciation, depletion, amortization and accretion)		582,246		465,533		420,485		397,548
Depreciation, depletion, amortization and accretion		162,220		158,352		146,757		144,818
Reduction in value of assets		-		807,637		755,632		175,618
Loss from continuing operations		(1,497)		(775,132)		(816,587)		(214,547)
Loss from discontinued operations, net of tax		(9,640)		(9,857)		(4,610)		(22,848)
Net loss	$	(11,137)	$	(784,989)	$	(821,197)	$	(237,395)

Loss per share from continuing operations:
Basic and diluted	$	(0.02)	$	(5.15)	$	(5.42)	$	(1.43)
Loss per share from discontinued operations:
Basic and diluted	$	(0.06)	$	(0.07)	$	(0.03)	$	(0.15)

Summary Of Significant Accounting Policies (Cash Equivalents) (Narrative) (Details)	12 Months Ended
	Dec. 31, 2016
Summary Of Significant Accounting Policies [Abstract]
Maximum maturity of short-term investments purchased to be cash equivalents	90 days

Summary Of Significant Accounting Policies (Inventory) (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Summary Of Significant Accounting Policies [Abstract]
Finished goods	$ 49,888	$ 71,951
Raw materials	17,948	23,418
Work-in-progress	5,214	18,203
Supplies and consumables	30,029	35,189
Inventory	$ 103,079	$ 148,761

Summary Of Significant Accounting Policies (Inventory Writedown) (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)
Summary Of Significant Accounting Policies [Abstract]
Inventory Write-down	$ 20.8

Summary Of Significant Accounting Policies (Estimated Useful Lives Of The Related Assets) (Details)	12 Months Ended
	Dec. 31, 2016
Building and Building Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, useful life	5 years
Building and Building Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, useful life	40 years
Marine Vessels And Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, useful life	5 years
Marine Vessels And Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, useful life	25 years
Machinery And Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, useful life	2 years
Machinery And Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, useful life	25 years
Automobiles, Trucks, Tractors And Trailers [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, useful life	3 years
Automobiles, Trucks, Tractors And Trailers [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, useful life	10 years
Furniture And Fixtures [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, useful life	2 years
Furniture And Fixtures [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, useful life	10 years

Summary Of Significant Accounting Policies (Goodwill) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Summary Of Significant Accounting Policies [Abstract]
Percentage of the discounted cash flow method for estimation of fair value of reporting units	80.00%
Percentage of the public company guideline method for estimation of fair value of reporting units	20.00%
Goodwill, Impaired, Accumulated Impairment Loss	$ 1,748,200	$ 1,417,700
Reduction in value of goodwill	$ 330,500	$ 1,326,701

Summary Of Significant Accounting Policies (Notes Receivable) (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Notes Receivable [Abstract]
Amount of notes receivable net	$ 115.0
Interest rate percentage to record present value of notes receivable	6.58%
Company recorded interest income	$ 3.6	$ 1.7	$ 1.6

Summary Of Significant Accounting Policies (Intangible And Other Long-Term Assets) (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Escrow Deposit Required by Seller of Oil and Gas Properties	$ 58,500				$ 58,400			$ 58,500	$ 58,400
Reduction in value of assets	35,961	$ 1,963	$ 460,283	$ 2,198	$ 175,618	$ 755,632	$ 807,637	500,405	1,738,887
Amortization expense exclusive of debt acquisition costs								16,200	$ 23,000	$ 25,900
Amortization of intangible assets exclusive of debt acquisitions costs for 2017	12,700							12,700
Amortization of intangible assets exclusive of debt acquisitions costs for 2018	12,700							12,700
Amortization of intangible assets exclusive of debt acquisitions costs for 2019	12,700							12,700
Amortization of intangible assets exclusive of debt acquisitions costs for 2020	12,700							12,700
Amortization of intangible assets exclusive of debt acquisitions costs for 2021	$ 12,700							$ 12,700
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life								17 years
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life								10 years
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life								3 years

Summary Of Significant Accounting Policies (Composition Of Intangible And Other Long-term Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Intangible Assets by Major Class [Line Items]
Acquired Finite-lived Intangible Asset, Amount	$ 197,912	$ 296,725
Finite-Lived Intangible Assets, Accumulated Amortization	(69,588)	(83,520)
Finite-Lived Intangible Assets, Net, Total	128,324	213,205
Customer Relationships [Member]
Schedule of Intangible Assets by Major Class [Line Items]
Acquired Finite-lived Intangible Asset, Amount	164,603	257,364
Finite-Lived Intangible Assets, Accumulated Amortization	(52,747)	(65,209)
Finite-Lived Intangible Assets, Net, Total	111,856	192,155
Trade Names [Member]
Schedule of Intangible Assets by Major Class [Line Items]
Acquired Finite-lived Intangible Asset, Amount	30,519	36,119
Finite-Lived Intangible Assets, Accumulated Amortization	(14,123)	(15,371)
Finite-Lived Intangible Assets, Net, Total	16,396	20,748
Noncompete Agreements [Member]
Schedule of Intangible Assets by Major Class [Line Items]
Acquired Finite-lived Intangible Asset, Amount	2,790	3,242
Finite-Lived Intangible Assets, Accumulated Amortization	(2,718)	(2,940)
Finite-Lived Intangible Assets, Net, Total	$ 72	$ 302

Summary Of Significant Accounting Policies (Decommissioning Liabilities) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Summary Of Significant Accounting Policies [Abstract]
Asset Retirement Obligation, Liabilities Incurred	$ 908	$ 266

Summary Of Significant Accounting Policies (Summary Of Activity Of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Beginning Balance	$ 1,140,101	$ 2,468,409
Acquisition activities		1,170
Reduction in value of assets	(330,500)	(1,326,701)
Foreign currency translation adjustments	(5,684)	(2,777)
Ending Balance	803,917	1,140,101
Drilling Products And Services [Member]
Goodwill [Roll Forward]
Beginning Balance	141,282	142,839
Foreign currency translation adjustments	(5,321)	(1,557)
Ending Balance	135,961	141,282
Onshore Completion Services [Member]
Goodwill [Roll Forward]
Beginning Balance	723,550	1,419,550
Reduction in value of assets	(140,000)	(740,000)
Goodwill, Other Changes		44,000
Ending Balance	583,550	723,550
Production Services [Member]
Goodwill [Roll Forward]
Beginning Balance	275,269	906,020
Acquisition activities		1,170
Reduction in value of assets	(190,500)	(586,701)
Foreign currency translation adjustments	(363)	(1,220)
Goodwill, Other Changes		(44,000)
Ending Balance	$ 84,406	$ 275,269

Summary Of Significant Accounting Policies (Earnings (Loss) Per Share) (Narrative) (Details)	12 Months Ended
	Dec. 31, 2014 shares
Summary Of Significant Accounting Policies [Abstract]
Antidilutive securities excluded from computation of earnings per share, share	1,100,000

Summary Of Significant Accounting Policies (Financial Instruments) (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Summary Of Significant Accounting Policies [Abstract]
Fair value of debt	$ 1,307.6	$ 1,508.0

Summary Of Significant Accounting Policies (Foreign Currency) (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Summary Of Significant Accounting Policies [Abstract]
Foreign currency gains	$ 23.5	$ (9.6)	$ (7.3)

Summary Of Significant Accounting Policies (Derivative Instruments And Hedging Activities) (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 31, 2017	Dec. 31, 2015
Subsequent Event [Line Items]
Proceeds from sale of Interest rate swap	$ 0.8
Percentage of fixed rate debt	77.00%		62.00%
Total notional amount of interest rate swaps	$ 300.0
Variable interest rate, Adjustment	90 days
Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from sale of Interest rate swap		$ 0.8

Summary of Significant Accounting Policies (Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Summary Of Significant Accounting Policies [Abstract]
Accumulated other comprehensive loss, net	$ (80,248)	$ (45,694)

Summary of Significant Accounting Policies (Cash Dividends) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Summary Of Significant Accounting Policies [Abstract]
Cash dividends declared per share	$ 0.08	$ 0.32	$ 0.24

Summary Of Significant Accounting Policies (Summary Of The Activity For Company's Decommissioning Liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Summary Of Significant Accounting Policies [Abstract]
Decommissioning liabilities, December 31, 2015 and 2014, respectively	$ 117,942	$ 88,000
Liability acquisitions and dispositions	908	266
Accretion	6,959	5,016
Revisions in estimated timing and cash flows	(2,132)	24,660
Asset Retirement Obligation	$ 117,942	$ 88,000	$ 123,677	$ 117,942
Less: current portion of decommissioning liabilities as of December 31, 2016 and 2015, respectively			22,164	19,052
Long-term decommissioning liabilities, December 31, 2016 and 2015, respectively			$ 101,513	$ 98,890

Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Supplemental Cash Flow Information [Abstract]
Cash paid for interest	$ 93,353	$ 93,946	$ 102,880
Cash paid for income taxes, net of refunds	(28,933)	40,074	127,132
Details of business acquisitions:
Fair Value of Assets Acquired			29,468
Fair value of liabilities			(5,125)
Cash paid			24,343
Less cash acquired			(16)
Net cash paid for acquisitions			24,327
Non-cash investing activity:
Capital Expenditures Incurred but Not yet Paid	$ 4,905	$ 28,704	$ 49,118

Reduction in Value of Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2016	Dec. 31, 2015
Asset Impairment Charges [Line Items]
Retirments of Long-Lived Assets								$ 26,102	$ 42,545
Reduction in Value of Long-Lived Assets								143,803	330,194
Reduction in value of goodwill								330,500	1,326,701
Reduction in value of assets	$ 35,961	$ 1,963	$ 460,283	$ 2,198	$ 175,618	$ 755,632	$ 807,637	500,405	1,738,887
Impairment of Intangible Assets, Finite-lived								68,900
Impairment of Long-Lived Assets Held-for-use								101,000
Allowance for Notes Receivables					16,800				16,800
Restructuring Charges								39,200	46,800
Restructuring Reserve, Current	4,900				7,200			4,900	7,200
Restructuring Reserve, Noncurrent	$ 7,800				$ 11,100			7,800	11,100
Drilling Products And Services [Member]
Asset Impairment Charges [Line Items]
Retirments of Long-Lived Assets								26,100
Reduction in value of assets								48,903	40,237
Impairment of Property, Plant and Equipment								25,000	40,200
Technical Solutions [Member]
Asset Impairment Charges [Line Items]
Reduction in value of assets								25,600	124,904
Impairment of Property, Plant and Equipment								25,600	56,000
Impairment of Long-Lived Assets Held-for-use									68,900
Production Services [Member]
Asset Impairment Charges [Line Items]
Retirments of Long-Lived Assets									15,200
Reduction in value of goodwill								190,500	586,701
Reduction in value of assets								235,067	790,517
Impairment of Intangible Assets (Excluding Goodwill)								21,000	59,500
Impairment of Property, Plant and Equipment								21,400	89,700
Onshore Completion Services [Member]
Asset Impairment Charges [Line Items]
Retirments of Long-Lived Assets									27,300
Reduction in value of goodwill								140,000	740,000
Reduction in value of assets								190,835	783,229
Impairment of Intangible Assets (Excluding Goodwill)								45,900
Impairment of Property, Plant and Equipment								$ 4,900	15,900
Impairment of operating leases									$ 20,200

Reduction in Value of Assets (Components of the Expense) (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2016	Dec. 31, 2015
Reduction In Value Of Assets [Abstract]
Reduction in value of goodwill								$ 330,500	$ 1,326,701
Reduction in Value of Long-Lived Assets								143,803	330,194
Retirments of Long-Lived Assets								26,102	42,545
Reduction in value of assets related to sale of a business									39,447
Asset Impairment Charges, Total	$ 35,961	$ 1,963	$ 460,283	$ 2,198	$ 175,618	$ 755,632	$ 807,637	$ 500,405	$ 1,738,887

Property, Plant and Equipment alt (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant And Equipment [Abstract]
Impairment of long lived assets	$ 101.0
Leasehold Improvements, Gross	82.5	$ 84.9
Depreciation	$ 486.9	$ 584.1	$ 620.6

Property, Plant and Equipment (Summary Of Property, Plant And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 4,059,704	$ 4,402,147
Accumulated depreciation and depletion	(2,454,339)	(2,278,856)
Property, plant and equipment, net	1,605,365	2,123,291
Buildings, Improvements And Leasehold Improvements [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	307,658	318,906
Machinery And Equipment [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	3,513,907	3,771,046
Automobiles, trucks, tractors and trailers [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	37,103	45,013
Furniture And Fixtures [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	66,045	67,483
Construction in Progress [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	11,048	74,683
Land [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	59,774	58,731
Oil and Gas Properties [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 64,169	$ 66,285

Debt (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Debt (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Feb. 28, 2017	Jul. 31, 2016	Feb. 29, 2016
Debt Instrument [Line Items]
Repayments of Long-term Lines of Credit	$ (325,123)	$ (7,475)	$ (14,736)
Revolving Credit Facility, Interest Payable Monthly At Floating Rate, Due December 2017 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		600,000
Aggregate principal amount of term loan		$ 325,000
Revolving credit facility interest payable monthly at floating rate due December 2019 [Member}
Debt Instrument [Line Items]
Line of Credit Facility Accordian Feature				$ 100,000
Term Loan A, Amount Outstanding	0
Line of Credit Facility, Maximum Borrowing Capacity				$ 300,000	$ 400,000	$ 470,300
Unsecured Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 500,000
Stated interest rate on unsecured senior notes	6.375%
Unsecured Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 800,000
Stated interest rate on unsecured senior notes	7.125%

Debt (Summary Of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Current		$ 29,957
Long-term debt, gross	$ 1,300,000	1,608,089
Unamortized debt issuance costs	(15,400)	(19,826)
Total debt, net	1,284,600	1,588,263
Senior Notes, Interest Payable Semiannually At 6 3/8%, Due May 2019 [Member]
Debt Instrument [Line Items]
Long-term debt, gross	500,000	500,000
Senior Notes, Interest Payable Semiannually At 7 1/8%, Due December 2021 [Member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 800,000	800,000
Term Loan, Interest Payable Monthly At Floating Rate And Principal Payable Quarterly, Due December 2017 [Member]
Debt Instrument [Line Items]
Current		20,000
Long-term debt, gross		305,000
Other long term debt instrument [member]
Debt Instrument [Line Items]
Current		9,957
Long-term debt, gross		$ 3,089

Debt (Schedule Of Maturities Of Long-Term Debt) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Debt [Abstract]
2018	$ 500,000
2020	800,000
Total	$ 1,300,000

Stock-Based And Long-Term Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock Based and Long-Term Compensation (Textual) [Abstract]
Compensation expense	$ 40,181	$ 45,572	$ 44,074
Intrinsic value of options exercised			17,100
Tax benefit from exercising stock options	100	$ 900	$ 5,600
Compensation expense expected to recognize in 2015	16,600
Compensation expense expected to recognize in 2016	7,300
Compensation expense expected to recognize in 2017	$ 300
Shares issued under Employee Stock Purchase Plan, shares	290,987	332,467	246,480
Proceed from issue of shares under employee stock purchase plans	$ 3,681	$ 4,803	$ 4,870
Long-term liability	18,489	17,367
Current liability	1,115	721
Deferred compensation, compensation expense	1,400	2,100	1,600
Deferred compensation plan assets	12,360	11,548
Other income (expense)	$ 22,621	(9,476)	(7,681)
Employee Stock Option [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Share-based payment vesting period, years	3 years
Share-based payment expiration period, years	10 years
Compensation expense	$ 4,870	3,663	3,900
Intrinsic value of options exercised	300	2,300
Cash received from exercising options	500	8,800	10,600
Tax benefit from exercising stock options	1,802	1,355	1,443
Unrecognized compensation expense related to non-vested options oustanding	5,700
Compensation expense expected to recognize in 2015	3,300
Compensation expense expected to recognize in 2016	2,400
Restricted Stock [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Compensation expense	382	9,219	15,800
Tax benefit from exercising stock options	$ 141	$ 3,411	5,846
Shares outstanding		292,937
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$ 23.13
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value		$ 23.13
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	$ 6,800	$ 12,100	23,000
Restricted Stock Units (RSUs) [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Compensation expense	24,762	19,699	11,282
Tax benefit from exercising stock options	9,162	$ 7,289	4,174
Unrecognized compensation expense related to non-vested options oustanding	$ 24,200
Resticted stock granted	2,549,112
Shares outstanding	3,686,292	2,787,889
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$ 20.62
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 14.10	$ 20.41
Performance Shares [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Compensation expense	$ 10,167	$ 12,991	13,092
Shares outstanding	368,394
Performance period of PSU grant, years	3 years
Portion of equivalent value in common stock of company after meeting service requirements, at discretion of compensation committee	50.00%
Performance Share Units Outstanding, in 2014	121,168
Performance Share Units Outstanding, in 2015	129,852
Performance Share Units Outstanding, in 2016	117,374
2013 Employee Stock Purchase Plan Member
Stock Based and Long-Term Compensation (Textual) [Abstract]
Compensation expense	$ 1,492	835	1,078
Supplemental Executive Retirement Plan [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Employers Contribution to be received by plan participants, Minimum	5.00%
Employers Contribution to be received by plan participants, Maximum	35.00%
Employers contribution	$ 2,200	1,200	1,200
Distribution to select participants	$ 1,400	3,700	3,000
Other Pension Plan [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Maximum employee contribution to be matched by employer	4.00%
Maximum empoyee contribution	75.00%
Company contribution, percent	100.00%
Company discretionary contributions	$ 8,700	$ 13,900	$ 16,700
Non-Qualified Deferred Compensation Plans [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Maximum portion of base salary to defer under non-qualified deferred compensation plan	75.00%
Maximum portion of bonus to defer under non-qualified deferred compensation plan	100.00%
Non-employee cash deferred to non-qualified compensation plan	100.00%
Maximum of cash portion of PSU compensation to defer under non-qualified deferred compensation plan	100.00%

Stock-Based And Long-Term Compensation (Summary Of The Valuation Assumptions Used To Calculate The Fair Value Of Stock Option Grants) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average fair value of grants	$ 3.61	$ 6.25	$ 6.95
Black-Scholes-Merton Assumptions:
Risk free interest rate	1.46%	1.33%	1.42%
Expected life (years)	5 years	5 years	4 years
Volatility	55.72%	47.07%	34.50%
Dividend yield	3.28%	1.30%	1.23%

Stock-Based And Long-Term Compensation (Summary Of Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Summarization of stock option activity
Number of options outstanding, beginning	4,591,141
Number of options granted	2,121,417
Number of options exercised	(40,723)
Number of options forfeited	(289,820)
Number of options expired	(371,181)
Number of options outstanding, ending	6,010,834	4,591,141
Number of options exercisable	3,671,241
Number of options expected to vest	2,339,593
Weighted average option price outstanding, beginning	$ 23.60
Weighted average option price granted	9.76
Weighted average option price excercised	12.86
Weighted average option price forfeited	9.76
Weighted average option price expired	27.21
Weighted average option price outstanding, ending	19.23	$ 23.60
Weighted average option price exercisable	23.86
Weighted average option price expected to vest	$ 11.97
Weighted average remaining contractual term, outstanding	6 years	5 years 3 months 18 days
Weighted average remaining contractual term, exercisable	4 years 2 months 12 days
Weighted average remaining contractual term, expected to vest	8 years 9 months 18 days
Aggregate intrinsic value, outstanding	$ 14,145	$ 256
Aggregate intrinsic value, exercisable	1,104
Aggregate intrinsic value, expected to vest	$ 13,041

Stock-Based And Long-Term Compensation (Summary Of Non-Vested Stock Option Activity) (Details)	12 Months Ended
	Dec. 31, 2016 $ / shares shares	Dec. 31, 2015 $ / shares shares	Dec. 31, 2014 $ / shares
Summarizes Non-vested Stock Option [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares, Beginning Balance \| shares	1,102,879
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross \| shares	2,121,417
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares \| shares	(594,883)
Number of options forfeited \| shares	(289,820)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares, Ending Balance \| shares	2,339,593	1,102,879
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Exercise Price, Beginning Balance	$ 20.81
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	3.61	$ 6.25	$ 6.95
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value	$ 21.54
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Granted, Weighted Average Grant Date Fair Value	9.76
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Weighted Average Grant Date Fair Value	$ 9.76
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Exercise Price, Ending Balance	$ 11.97	$ 20.81

Stock-Based And Long-Term Compensation (Summary Of The Status Of Restricted Stock) (Details) - Restricted Stock [Member]	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Summary of restricted stock
Beginning balance \| shares	292,937
Shares, vested \| shares	(291,779)
Shares, fofeited \| shares	(1,158)
Weighted average grant date fair value, beginning balance \| $ / shares	$ 23.13
Weighted average grant date fair value, vested \| $ / shares	23.13
Weighted average grant date fair value, forfeited \| $ / shares	$ 23.03

Stock-Based And Long-Term Compensation (Summary Of The Activity Of Restricted Stock Units) (Details) - Restricted Stock Units (RSUs) [Member]	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance \| shares	2,787,889
Granted \| shares	2,549,112
Shares, vested \| shares	(1,127,930)
Shares, fofeited \| shares	(522,779)
Ending balance \| shares	3,686,292
Weighted average grant date fair value, beginning balance \| $ / shares	$ 20.41
Weighted average grant date fair value, granted \| $ / shares	9.98
Weighted average grant date fair value, vested \| $ / shares	20.62
Weighted average grant date fair value, forfeited \| $ / shares	13.56
Weighted average grant date fair value, ending balance \| $ / shares	$ 14.10

Stock-Based And Long-Term Compensation (Summary Of Compensation Expense and Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Allocated Share-based Compensation Expense	$ 40,181	$ 45,572	$ 44,074
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	11,105	12,055	11,463
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Allocated Share-based Compensation Expense	4,870	3,663	3,900
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Allocated Share-based Compensation Expense	382	9,219	15,800
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Allocated Share-based Compensation Expense	24,762	19,699	11,282
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Allocated Share-based Compensation Expense	10,167	12,991	13,092
2013 Employee Stock Purchase Plan Member
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Allocated Share-based Compensation Expense	$ 1,492	$ 835	$ 1,078

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended			36 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2013
Income Taxes [Abstract]
U.S. Federal income tax rate				35.00%
net operating loss carryforwards	$ 320,800			$ 320,800
Deferred tax assets, various state	26,500			26,500
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	49,100			49,100
Unrecorded tax benefits	29,956	$ 29,715	$ 30,344	29,956	$ 29,899
Interest and penalties recorded	2,500	1,000	600
Interest and penalties accrued	7,400	$ 4,600	$ 5,000	$ 7,400
Increase in valuation allowance	$ 1,300

Income Taxes (Schedule Of Components Of Income And Loss From Continuing Operations Before Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
Domestic	$ (1,097,109)	$ (2,069,019)	$ 372,672
Foreign	(3,232)	9,236	69,517
Income (loss) from continuing operations before income taxes	$ (1,100,341)	$ (2,059,783)	$ 442,189

Income Taxes (Schedule Of Components Of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current, federal	$ (101,578)	$ (952)	$ 150,997
Current, state	(159)	2,818	11,339
Current, foreign	19,156	19,227	36,287
Current, total	(82,581)	21,093	198,623
Deferred, federal	(179,721)	(249,193)	(33,172)
Deferred, state	(9,348)	(10,034)	648
Deferred, foreign	4,649	(13,886)	(4,700)
Deferred income taxes	(184,420)	(273,113)	(37,224)
Income Tax Expense (Benefit), Total	$ (267,001)	$ (252,020)	$ 161,399

Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Computed expected tax expense (benefit)	$ (385,119)	$ (720,923)	$ 154,766
Increase (decrease) resulting from State and foreign income taxes	(8,038)	(6,353)	8,467
Increase (decrease) resulting other	10,431	10,861	(1,834)
Income Tax Expense (Benefit)	(267,001)	(252,020)	$ 161,399
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount	$ 115,725	$ 464,395

Income Taxes (Schedule Of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Components of Deferred Tax Assets [Abstract]
Allowance for doubtful accounts	$ 9,172	$ 8,275
Operating loss and tax credit carryforwards	85,383	92,798
Compensation and employee benefits	59,351	59,310
Decommissioning liabilities	40,994	30,400
Other	51,069	57,768
Deferred tax assets, gross	245,969	248,551
Valuation allowance	(6,722)	(5,395)
Net deferred tax assets	239,247	243,156
Components of Deferred Tax Liabilities [Abstract]
Property, plant and equipment	352,683	469,728
Notes receivable	14,796	14,796
Goodwill and other intangible assets	98,868	119,661
Other	16,511	22,040
Deferred tax liabilities	482,858	626,225
Net deferred tax liability	$ (243,611)	$ (383,069)

Income Taxes (Net Deferred Tax Liabilities Classified In The Consolidated Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Tax Liabilities, Net, Classification [Abstract]
Noncurrent deferred income taxes	$ (243,611)	$ (383,069)
Net deferred tax liability	$ (243,611)	$ (383,069)

Income Taxes (Summary Of Activity In Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	$ 29,715	$ 30,344	$ 29,899
Additions based on tax positions related to prior years	6,874	6,752	7,860
Reductions based on tax positions related to prior years	(3,582)		(5,438)
Reductions as a result of a lapse of the applicable statute of limitations	(3,051)		(1,977)
Reductions relating to settlements with taxing authorities		(7,381)
Unrecognized tax benefits, ending balance	$ 29,956	$ 29,715	$ 30,344

Segment Information (Schedule Of Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenues	$ 354,418	$ 326,225	$ 356,271	$ 413,133	$ 545,150	$ 601,396	$ 710,784	$ 917,235	$ 1,450,047	$ 2,774,565	$ 4,556,622
Cost of goods and services	321,132	258,168	258,635	285,339	397,548	420,485	465,533	582,246	1,123,274	1,865,812	2,734,833
Depreciation, depletion, amortization and accretion - services	117,954	123,308	132,037	136,672	144,818	146,757	158,352	$ 162,220	509,971	612,147	650,814
General and administrative expenses									346,606	510,708	624,371
Reduction in the value of assets	$ 35,961	$ 1,963	$ 460,283	$ 2,198	$ 175,618	$ 755,632	$ 807,637		500,405	1,738,887
Income from operations									(1,030,209)	(1,952,989)	546,604
Interest expense, net									92,753	97,318	96,734
Other income (expense)									22,621	(9,476)	(7,681)
Income (loss) from continuing operations before income taxes									(1,100,341)	(2,059,783)	442,189
Drilling Products And Services [Member]
Segment Reporting Information [Line Items]
Revenues									293,543	547,530	852,499
Cost of goods and services									136,719	178,629	255,613
Depreciation, depletion, amortization and accretion - services									161,378	187,336	179,934
General and administrative expenses									89,574	120,637	141,762
Reduction in the value of assets									48,903	40,237
Income from operations									(143,031)	20,691	275,190
Income (loss) from continuing operations before income taxes									(143,031)	20,691	275,190
Onshore Completion Services [Member]
Segment Reporting Information [Line Items]
Revenues									523,965	934,274	1,732,833
Cost of goods and services									515,784	773,119	1,205,443
Depreciation, depletion, amortization and accretion - services									209,455	225,667	233,430
General and administrative expenses									91,508	121,289	159,687
Reduction in the value of assets									190,835	783,229
Income from operations									(483,617)	(969,030)	134,273
Income (loss) from continuing operations before income taxes									(483,617)	(969,030)	134,273
Production Services [Member]
Segment Reporting Information [Line Items]
Revenues									348,363	795,215	1,402,815
Cost of goods and services									276,223	612,578	967,440
Depreciation, depletion, amortization and accretion - services									95,416	136,992	171,380
General and administrative expenses									76,817	146,192	195,731
Reduction in the value of assets									235,067	790,517
Income from operations									(335,160)	(891,064)	68,264
Interest expense, net									1,343	2,013
Income (loss) from continuing operations before income taxes									(336,503)	(893,077)	68,264
Technical Solutions [Member]
Segment Reporting Information [Line Items]
Revenues									284,176	497,546	568,475
Cost of goods and services									194,548	301,486	306,337
Depreciation, depletion, amortization and accretion - services									43,722	62,152	66,070
General and administrative expenses									88,707	122,590	127,191
Reduction in the value of assets									25,600	124,904
Income from operations									(68,401)	(113,586)	68,877
Interest expense, net									(3,553)	(1,707)	(1,577)
Income (loss) from continuing operations before income taxes									(64,848)	(111,879)	70,454
Unallocated [Member]
Segment Reporting Information [Line Items]
Interest expense, net									94,963	97,012	98,311
Other income (expense)									22,621	(9,476)	(7,681)
Income (loss) from continuing operations before income taxes									$ (72,342)	$ (106,488)	$ (105,992)

Segment Information (Schedule Of Identifiable Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Assets	$ 3,470,255	$ 4,914,244	$ 7,317,782
Drilling Products And Services [Member]
Segment Reporting Information [Line Items]
Assets	849,046	1,154,425	1,212,900
Onshore Completion Services [Member]
Segment Reporting Information [Line Items]
Assets	1,573,801	1,929,185	2,993,824
Production Services [Member]
Segment Reporting Information [Line Items]
Assets	598,909	1,036,485	2,170,534
Technical Solutions [Member]
Segment Reporting Information [Line Items]
Assets	$ 448,499	$ 794,149	$ 940,524

Segment Information (Schedule Of Capital Expenditures, By Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Drilling Products And Services [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	$ 35,504	$ 124,015	$ 261,451
Onshore Completion Services [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	20,185	103,001	152,742
Production Services [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	20,939	77,537	102,171
Technical Solutions [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	3,920	53,673	99,738
Unallocated [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	$ 80,548	$ 358,226	$ 616,102

Segment Information (Schedule Of Revenues By Geographic Segment) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 354,418	$ 326,225	$ 356,271	$ 413,133	$ 545,150	$ 601,396	$ 710,784	$ 917,235	$ 1,450,047	$ 2,774,565	$ 4,556,622
Long-lived assets	1,605,365				2,123,291				1,605,365	2,123,291
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									1,080,513	2,185,071	3,848,929
Long-lived assets	1,288,077				1,799,418				1,288,077	1,799,418
Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									369,534	589,494	$ 707,693
Long-lived assets	$ 317,288				$ 323,873				$ 317,288	$ 323,873

Commitments And Contingencies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Commitments and Contingencies (Textual) [Abstract]
Rent expense	$ 24.1	$ 29.6	$ 26.2
2017	42.7
2018	27.5
2019	16.8
2020	12.2
Thereafter	$ 29.8

Fair Value Measurements (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) agreement	Dec. 31, 2015 USD ($)
Fair Value Measurements [Abstract]
Number of Interest Swap Agreements \| agreement	3
Interest rate swap agreement for notional amount	$ 100,000
Fair value of debt	1,307,600	$ 1,508,000
Impairment of long lived assets	101,000
Reduction in value of goodwill	330,500	$ 1,326,701
Impairment of Long-Lived Assets Held-for-use	101,000
Impairment of Intangible Assets, Finite-lived	$ 68,900

Fair Value Measurements (Summary Of Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Non-Qualified Deferred Compensation Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accounts payable	$ 1,115
Intangible and other long-term assets	12,360	$ 11,548
Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible and other long-term assets	8,579	6,905
Non Qualified Deferred Compensation Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other long-term liabilities	18,489	17,367
Accounts payable		721
Level 1 [Member] \| Non-Qualified Deferred Compensation Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accounts payable
Intangible and other long-term assets	368	368
Level 1 [Member] \| Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible and other long-term assets
Level 1 [Member] \| Non Qualified Deferred Compensation Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other long-term liabilities
Accounts payable
Level 2 [Member] \| Non-Qualified Deferred Compensation Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accounts payable	1,115
Intangible and other long-term assets	11,992	11,180
Level 2 [Member] \| Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible and other long-term assets	8,579	6,905
Level 2 [Member] \| Non Qualified Deferred Compensation Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other long-term liabilities	18,489	17,367
Accounts payable		721
Level 3 [Member] \| Non-Qualified Deferred Compensation Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accounts payable
Intangible and other long-term assets
Level 3 [Member] \| Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible and other long-term assets
Level 3 [Member] \| Non Qualified Deferred Compensation Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other long-term liabilities
Accounts payable

Fair Value Measurements (Fair Value Measurements Used in Testing) (Details) - USD ($) $ in Thousands			12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite Lived Intangible Assets Fair Value Used In Testing for Impairment	$ 68,865
Goodwill Fair Value Measurement Used in Testing for Impairment	330,500
Property, Plant and Equipment Fair Value Measurment Used in Testing Impairment of Long-Lived Assets	74,938
Reduction in value of goodwill			$ 330,500	$ 1,326,701
Impairment of Intangible Assets, Finite-lived			68,900
Impairment of Long-Lived Assets Held-for-use			$ 101,000
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill Fair Value Measurement Used in Testing for Impairment	668,864
Property, Plant and Equipment Fair Value Measurment Used in Testing Impairment of Long-Lived Assets	$ 294,457
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite Lived Intangible Assets Fair Value Used In Testing for Impairment		$ 68,890
Goodwill Fair Value Measurement Used in Testing for Impairment		1,326,701
Property, Plant and Equipment Fair Value Measurment Used in Testing Impairment of Long-Lived Assets		177,442
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite Lived Intangible Assets Fair Value Used In Testing for Impairment		6,345
Goodwill Fair Value Measurement Used in Testing for Impairment		998,288
Property, Plant and Equipment Fair Value Measurment Used in Testing Impairment of Long-Lived Assets		$ 179,612

Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative Financial Instruments [Abstract]
Derivative asset	$ 8.6	$ 6.9
Interest income (expense) related to the ineffectiveness associated with the fair value hedge	(1.7)	$ 2.7	$ 3.8
Interest rate swap agreement for notional amount	100.0
Proceeds from sale of Interest rate swap	$ 0.8

Derivative Financial Instruments (Location And Effect Of The Derivative Instrument On The Statements Of Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative Instruments, (Gain) Loss [Line Items]
Amount of (gain) loss recognized	$ (1,674)	$ (2,722)	$ (3,846)
Hedged Item Debt [Member]
Derivative Instruments, (Gain) Loss [Line Items]
Amount of (gain) loss recognized	(3,980)	(790)	7,208
Interest Rate Swap [Member]
Derivative Instruments, (Gain) Loss [Line Items]
Amount of (gain) loss recognized	$ 2,306	$ (1,932)	$ (11,054)

Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase of leased vessels		$ 46,442
Subsea Construction Marine Vessels Member
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment Included in Discontinued Operations	$ 33,000	25,800
Gain on sale of assets, disposal group accounted for as discontinued operations		18,800
Conventional Decommissioning Long-lived Assets Member
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment Included in Discontinued Operations		$ 8,800

Discontinued Operations (Components Of Income (Loss) From Discontinued Operations) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax expense (benefit)									$ 1,908	$ 5,626	$ 19,330
Income (Loss) from Discontinued Operations, Net of Tax (benefit) expense	$ (44,982)	$ (4,085)	$ (2,225)	$ (2,267)	$ (22,848)	$ (4,610)	$ (9,857)	$ (9,640)	(53,559)	(46,955)	(22,973)
Property, plant and equipment, net of discontinued operations	$ 27,000				92,634				27,000	92,634
Segment, Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues										18,723	145,463
Income (Loss) from Discontinued Operations, Net of Tax (benefit) expense									$ (53,559)	(46,955)	(22,973)
Segment, Conventional Decommissioning Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (Loss) from Discontinued Operations, Net of Tax (benefit) expense										7,500	$ 21,700
Property, plant and equipment, net of discontinued operations					$ 26,600					$ 26,600

- Definition

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

+ References + Details

- Definition

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

+ References + Details

Discontinued Operations (Assets And Liabilities of Disposal Groups) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Disposal Group, Including Discontinued Operation, Classified Balance Sheet Disclosures [Abstract]
Current assets	$ 158	$ 2,600
Property, plant and equipment, net of discontinued operations	27,000	92,634
Total assets	27,158	95,234
Current liabilities	$ 8,653	$ 4,661

Related Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Purchase of services		$ 221.1
Ortowski Construction [Member]
Related Party Transaction [Line Items]
Purchase of services		0.7
ORTEQ Energy Services [Member]
Related Party Transaction [Line Items]
Purchase of services		92.1
Resource Transport [Member]
Related Party Transaction [Line Items]
Purchase of services		21.6
Texas Specialty Sands [Member]
Related Party Transaction [Line Items]
Purchase of services		79.3
ProFuel LLC [Member]
Related Party Transaction [Line Items]
Purchase of services		25.5
TIMBER CREEK REAL ESTATE PARTNERS [Member]
Related Party Transaction [Line Items]
Purchase of services		1.9
LINNENERGY[MEMBER]
Related Party Transaction [Line Items]
Revenue from Related Parties	$ 5.4	7.2	$ 19.7
Accounts Receivable, Related Parties, Current	$ 0.5	$ 2.0

Interim Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Selected Quarterly Financial Information [Abstract]
Revenues	$ 354,418	$ 326,225	$ 356,271	$ 413,133	$ 545,150	$ 601,396	$ 710,784	$ 917,235	$ 1,450,047	$ 2,774,565	$ 4,556,622
Costs and Expenses [Abstract]
Cost of services and rentals	321,132	258,168	258,635	285,339	397,548	420,485	465,533	582,246	1,123,274	1,865,812	2,734,833
Depreciation, depletion, amortization and accretion - services	117,954	123,308	132,037	136,672	144,818	146,757	158,352	162,220	509,971	612,147	650,814
Reduction in value of assets	35,961	1,963	460,283	2,198	175,618	755,632	807,637		500,405	1,738,887
Net income (loss) from continuing operations	(166,259)	(113,913)	(468,632)	(84,536)	(214,547)	(816,587)	(775,132)	(1,497)	(833,340)	(1,807,763)	280,790
Loss from discontinued operations, net of tax	(44,982)	(4,085)	(2,225)	(2,267)	(22,848)	(4,610)	(9,857)	(9,640)	(53,559)	(46,955)	(22,973)
Net income (loss)	$ (211,241)	$ (117,998)	$ (470,857)	$ (86,803)	$ (237,395)	$ (821,197)	$ (784,989)	$ (11,137)	$ (886,899)	$ (1,854,718)	$ 257,817
Earnings Per Share [Abstract]
Continuing operations, basic	$ (1.10)	$ (0.75)	$ (3.09)	$ (0.56)	$ (1.43)	$ (5.42)	$ (5.15)	$ (0.02)	$ (5.50)	$ (12.02)	$ 1.81
Continuing operations, diluted									(5.50)	(12.02)	1.79
Discontinued operations, basic	$ (0.30)	$ (0.03)	$ (0.02)	$ (0.01)	$ (0.15)	$ (0.03)	$ (0.07)	$ (0.06)	(0.35)	(0.31)	(0.15)
Discontinued operations, diluted									$ (0.35)	$ (0.31)	$ (0.14)

Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowances and Reserves, Balance, Beginning Balance	$ 28,242	$ 22,076	$ 31,030
Valuation Allowances and Reserves, Charged to Cost and Expense	7,825	14,341	6,299
Valuation Allowances and Reserves, Deductions	6,327	4,795	10,639
Valuation Allowances and Reserves, Reclassifications to Assets Held for Sale		3,380	4,614
Valuation Allowances and Reserves, Balance, Ending Balance	$ 29,740	$ 28,242	$ 22,076