SEGMENT INFORMATION (Tables)

9 Months Ended

Dec. 31, 2011

Segments [Abstract]

Schedule of revenue by segment

			Three Months Ended December 31,				Nine Months Ended December 31,
			2011		2010		2011		2010
Segment gross revenue from external clients:
	Europe		$	134,442	$	129,705	$	408,966	$	348,469
	West Africa			69,867		53,725		188,415		170,931
	North America			42,718		45,589		134,679		153,598
	Australia			35,842		41,440		114,460		114,095
	Other International			38,175		41,865		109,789		110,979
	Corporate and other			10,291		5,545		27,123		24,594
		Total segment gross revenue	$	331,335	$	317,869	$	983,432	$	922,666
Intrasegment gross revenue:
	Europe		$	87	$	123	$	322	$	645
	West Africa			0		0		0		0
	North America			26		40		564		123
	Australia			227		0		462		0
	Other International			0		0		0		0
	Corporate and other			51		848		(273)		1,062
		Total intrasegment gross revenue	$	391	$	1,011	$	1,075	$	1,830
Consolidated gross revenue reconciliation:
	Europe		$	134,529	$	129,828	$	409,288	$	349,114
	West Africa			69,867		53,725		188,415		170,931
	North America			42,744		45,629		135,243		153,721
	Australia			36,069		41,440		114,922		114,095
	Other International			38,175		41,865		109,789		110,979
	Corporate and other			10,342		6,393		26,850		25,656
	Intrasegment eliminations			(391)		(1,011)		(1,075)		(1,830)
		Total consolidated gross revenue	$	331,335	$	317,869	$	983,432	$	922,666

Schedule of earnings from unconsolidated affiliates

				Three Months Ended December 31,				Nine Months Ended December 31,
				2011		2010		2011		2010
Earnings from unconsolidated affiliates, net of losses – equity method
	investments:
		Europe		$	3,492	$	3,490	$	8,816	$	8,230
		Other International			(391)		1,854		(3,766)		1,184
		Corporate and other			0		(3)		7		(59)
			Total earnings from unconsolidated affiliates, net of losses – equity method investments	$	3,101	$	5,341	$	5,057	$	9,355

Schedule of consolidated operating income loss

			Three Months Ended December 31,				Nine Months Ended December 31,
			2011		2010		2011		2010
Consolidated operating income (loss) reconciliation:
	Europe		$	20,792	$	25,470	$	67,627	$	65,381
	West Africa			18,130		15,995		45,481		48,789
	North America			1,834		1,917		5,989		16,129
	Australia			3,139		7,139		8,239		21,185
	Other International			12,453		11,595		26,452		24,962
	Corporate and other			(9,930)		(15,444)		(61,175)		(40,151)
	Gain (loss) on disposal of assets			(2,865)		(33)		(3,060)		3,582
		Total consolidated operating income	$	43,553	$	46,639	$	89,553	$	139,877

Schedule of depreciation and amortization

			Three Months Ended December 31,				Nine Months Ended December 31,
			2011		2010		2011		2010
Depreciation and amortization:
	Europe		$	7,667	$	7,182	$	23,589	$	19,389
	West Africa			3,155		2,615		9,669		8,060
	North America			3,150		3,751		12,784		12,327
	Australia			2,873		3,002		8,811		8,359
	Other International			4,506		3,330		12,539		9,607
	Corporate and other			1,358		1,458		3,456		3,895
		Total depreciation and amortization	$	22,709	$	21,338	$	70,848	$	61,637

Schedule of identifiable assets

			December 31,		March 31,
			2011		2011
Identifiable assets:
	Europe		$	799,315	$	856,448
	West Africa			384,589		354,154
	North America			258,474		302,081
	Australia			309,659		288,036
	Other International			612,672		602,243
	Corporate and other			401,308		272,392
		Total identifiable assets (1)	$	2,766,017	$	2,675,354

Schedule of equity method investments

				December 31,		March 31,
				2011		2011
Investments in unconsolidated affiliates – equity method investments:
	Europe			$	9,668	$	11,508
	Other International				184,357		190,736
		Total investments in unconsolidated affiliates – equity method		$	194,025	$	202,244
			investments