Business Segment Information (Tables)

9 Months Ended

Sep. 30, 2012

Business Segment Information [Abstract]

Schedule Of Segment Reporting Information By Segment

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2012		2011		2012		2011
Revenues -
Contracting Services	$	221,491	$	229,967	$	675,592	$	532,857
Production Facilities		20,024		19,986		60,009		56,101
Oil and Gas		119,124		159,218		447,142		500,535
Intercompany elimination		(24,405)		(36,675)		(91,188)		(87,071)
Total	$	336,234	$	372,496	$	1,091,555	$	1,002,422
Income (loss) from operations -
Contracting Services	$	33,012	$	47,363	$	111,359	$	81,194
Production Facilities		10,180		10,983		30,111		28,859
Oil and Gas		5,540		48,622		142,924		144,926
Corporate		(13,396)		(6,227)		(35,452)		(25,780)
Intercompany elimination		39		(528)		(2,883)		(457)
Total	$	35,375	$	100,213	$	246,059	$	228,742
Equity in earnings of equity investments	$	1,392	$	4,906	$	7,547	$	16,443

Summary Of Intercompany Segment Revenues

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2012		2011		2012		2011
Contracting Services		12,896		25,410		56,635		52,574
Production Facilities		11,509		11,265		34,553		34,497
Total	$	24,405	$	36,675	$	91,188	$	87,071

Summary Of Identifiable Assets

		September 30,		December 31,
		2012		2011
Contracting Services	$	2,215,076	$	2,006,065
Production Facilities		509,468		534,776
Oil and Gas		987,413		1,041,506
Total	$	3,711,957	$	3,582,347

Intercompany Segment Profits

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2012		2011		2012		2011
Contracting Services		5		606		3,014		645
Production Facilities		(44)		(78)		(131)		(188)
Total	$	(39)	$	528	$	2,883	$	457