Segment Information (Tables)

6 Months Ended

Jun. 30, 2011

Segment Information [Abstract]

Summary of financial information for the Company's segments

Three Months Ended June 30, 2011

	Subsea and		Drilling
	Well		Products and							Consolidated
	Enhancement		Services		Marine		Unallocated			Total
Revenues	$	336,037	$	149,167	$	25,602	$	—		$	510,806
Cost of services (exclusive of items shown separately below)		194,307		56,627		20,436		—			271,370
Depreciation, depletion, amortization and accretion		28,056		32,447		2,811		—			63,314
General and administrative expenses		62,810		30,431		2,640		—			95,881
Gain on sale of businesses		—		—		5,884		—			5,884
Income from operations		50,864		29,662		5,599		—			86,125
Interest income (expense), net		1,126		—		—		(17,579	)		(16,453	)
Earnings from equity-method investments, net		—		—		—		5,499			5,499
Income (loss) before income taxes	$	51,990	$	29,662	$	5,599	$	(12,080	)	$	75,171

Three Months Ended June 30, 2010

	Subsea and		Drilling
	Well		Products and								Consolidated
	Enhancement		Services		Marine			Unallocated			Total
Revenues	$	284,352	$	121,337	$	19,167		$	—		$	424,856
Cost of services (exclusive of items shown separately below)		167,875		43,759		18,282			—			229,916
Depreciation, depletion, amortization and accretion		23,670		28,053		2,576			—			54,299
General and administrative expenses		59,925		29,191		3,413			—			92,529
Income (loss) from operations		32,882		20,334		(5,104	)		—			48,112
Interest expense, net		—		—		—			(12,680	)		(12,680	)
Earnings from equity-method investments, net		—		—		—			2,170			2,170
Income (loss) before income taxes	$	32,882	$	20,334	$	(5,104	)	$	(10,510	)	$	37,602

Six Months Ended June 30, 2011

	Subsea and		Drilling
	Well		Products and							Consolidated
	Enhancement		Services		Marine		Unallocated			Total
Revenues	$	598,082	$	277,437	$	49,268	$	—		$	924,787
Cost of services (exclusive of items shown separately below)		364,975		103,324		36,916		—			505,215
Depreciation, depletion, amortization and accretion		53,797		63,007		5,873		—			122,677
General and administrative expenses		117,467		59,740		5,553		—			182,760
Gain on sale of businesses		—		—		8,558		—			8,558
Income from operations		61,843		51,366		9,484		—			122,693
Interest income (expense), net		2,235		—		—		(31,060	)		(28,825	)
Earnings from equity-method investments, net		—		—		—		5,526			5,526
Income (loss) before income taxes	$	64,078	$	51,366	$	9,484	$	(25,534	)	$	99,394

Six Months Ended June 30, 2010

	Subsea and		Drilling
	Well		Products and								Consolidated
	Enhancement		Services		Marine			Unallocated			Total
Revenues	$	517,118	$	235,614	$	36,635		$	—		$	789,367
Cost of services (exclusive of items shown separately below)		310,744		83,854		34,370			—			428,968
Depreciation, depletion, amortization and accretion		44,092		56,289		4,966			—			105,347
General and administrative expenses		105,703		51,190		6,360			—			163,253
Income (loss) from operations		56,579		44,281		(9,061	)		—			91,799
Interest expense, net		—		—		—			(26,718	)		(26,718	)
Earnings from equity-method investments, net		—		—		—			6,155			6,155
Income (loss) before income taxes	$	56,579	$	44,281	$	(9,061	)	$	(20,563	)	$	71,236

          Identifiable Assets

	Subsea and		Drilling
	Well		Products and						Consolidated
	Enhancement		Services		Marine		Unallocated		Total
June 30, 2011	$	2,029,481	$	1,002,083	$	239,100	$	90,973	$	3,361,637
December 31, 2010	$	1,769,813	$	802,785	$	255,883	$	79,052	$	2,907,533

Company's information by geographic area

	Three Months Ended June 30,				Six Months Ended June 30,
Revenues:	2011		2010		2011		2010
United States	$	373,068	$	311,790	$	683,271	$	567,115
Other Countries		137,738		113,066		241,516		222,252
Total	$	510,806	$	424,856	$	924,787	$	789,367

	June 30,		December 31,
Long-Lived Assets:	2011		2010
United States	$	940,745	$	881,416
Other Countries		454,173		431,734
Total, net	$	1,394,918	$	1,313,150