Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income (loss), including noncontrolling interests	$ 113,049	$ (43,156)	$ 133,037
Adjustments to reconcile net income (loss), including noncontrolling interests to net cash provided by operating activities
Income (loss) from discontinued operations, net of tax	(1,073)	(23,684)	(95,221)
Depreciation and amortization	98,535	97,201	91,188
Asset impairment charges		177,135	6,564
Amortization of deferred financing costs	5,187	9,086	8,910
Stock-based compensation expense	8,307	7,627	6,973
Amortization of debt discount	5,172	9,729	8,973
Deferred income taxes	(24,937)	(69,584)	(4,188)
Excess tax from stock-based compensation	(219)	1,186	1,013
Gain on investment in Cal Dive common stock			(753)
(Gain) loss on sale of assets, net	(14,727)	13,476	6
Loss on early extinguishment of debt	12,100	17,127	2,354
Other than temporary loss on equity investments			10,563
Unrealized (gain) loss and ineffectiveness on derivative contracts, net	77	(250)	382
Changes in operating assets and liabilities:
Accounts receivable, net	(3,320)	(3,652)	(30,491)
Other current assets	14,277	(10,434)	18,783
Income tax payable	(56,164)	(16,812)	6,472
Accounts payable and accrued liabilities	(32,045)	73,448	23,191
Oil and gas asset retirement costs	(10,334)	(37,970)	(4,907)
Other noncurrent, net	(9,024)	(24,405)	(192)
Net cash provided by operating activities	104,861	176,068	182,657
Net cash provided by (used in) discontinued operations	(30,503)	276,430	384,498
Net cash provided by operating activities	74,358	452,498	567,155
Cash flows from investing activities:
Capital expenditures	(324,426)	(323,039)	(100,154)
Distributions from equity investments, net	9,295	7,797	1,266
Proceeds from sale of assets	189,054	19,530	3,588
Net cash used in investing activities	(126,077)	(295,712)	(95,300)
Net cash provided by (used in) discontinued operations	582,965	(120,057)	(87,017)
Net cash provided by (used in) investing activities	456,888	(415,769)	(182,317)
Cash flows from financing activities:
Early extinguishment of Senior Unsecured Notes	(281,490)	(209,500)	(77,394)
Borrowing under revolving credit facility	47,617	100,000	109,400
Repayment of revolving credit facility	(147,617)		(109,400)
Issuance of Convertible Senior Notes due 2032		200,000
Repurchase of Convertible Senior Notes due 2025	(3,487)	(298,288)
Proceeds from term loans	300,000	100,000
Repayment of term loans	(374,681)	(12,569)	(130,691)
Repayment of MARAD borrowings	(5,120)	(4,877)	(4,645)
Deferred financing costs	(10,954)	(7,580)	(9,311)
Distributions to noncontrolling interest	(4,097)	(5,287)
Repurchases of common stock	(11,256)	(7,197)	(7,604)
Excess tax benefit from stock-based compensation	219	(1,186)	(1,013)
Exercise of stock options, net and other	734	1,252	763
Proceeds from issuance of ESPP shares	2,711
Net cash used in financing activities	(487,421)	(145,232)	(229,895)
Effect of exchange rate changes on cash and cash equivalents	(2,725)	(860)	436
Net increase (decrease) in cash and cash equivalents	41,100	(109,363)	155,379
Cash and cash equivalents:
Balance, beginning of year	437,100	546,463	391,084
Balance, end of year	$ 478,200	$ 437,100	$ 546,463