SEGMENT INFORMATION (Tables)

3 Months Ended

Jun. 30, 2013

Segments [Abstract]

Schedule of revenue by segment

	Three Months Ended   June 30,
	2013			2012
Business unit gross revenue from external clients:
Europe	$	166,709		$	153,957
West Africa	79,381			70,454
North America	58,582			52,710
Australia	43,998			44,502
Other International	32,975			33,475
Corporate and other	17,349			7,510
Total business unit gross revenue	$	398,994		$	362,608
Intra-business unit gross revenue:
Europe	$	—		$	63
West Africa	—			—
North America	(16		)	196
Australia	—			—
Other International	—			—
Corporate and other	863			120
Total intra-business unit gross revenue	$	847		$	379
Consolidated gross revenue reconciliation:
Europe	$	166,709		$	154,020
West Africa	79,381			70,454
North America	58,566			52,906
Australia	43,998			44,502
Other International	32,975			33,475
Corporate and other	18,212			7,630
Intra-business unit eliminations	(847		)	(379		)
Total consolidated gross revenue	$	398,994		$	362,608

Schedule of earnings from unconsolidated affiliates

	Three Months Ended   June 30,
	2013		2012
Earnings from unconsolidated affiliates, net of losses – equity method investments:
Europe	3,040		2,006
North America	(8	)	—
Other International	8,940		(17	)
Corporate and other	—		—
Total earnings from unconsolidated affiliates, net of losses – equity method investments	11,972		1,989

Schedule of consolidated operating income loss

	Three Months Ended   June 30,
	2013		2012
Consolidated operating income (loss) reconciliation:
Europe	20,021		21,876
West Africa	19,253		16,131
North America	8,123		6,475
Australia	3,280		6,509
Other International	18,442		7,387
Corporate and other	(11,279	)	(13,070	)
Gain (loss) on disposal of assets	(1,721	)	(5,315	)
Total consolidated operating income	56,119		39,993

Schedule of depreciation and amortization

	Three Months Ended   June 30,
	2013	2012
Depreciation and amortization:
Europe	7,248	7,564
West Africa	3,260	3,142
North America	6,139	3,266
Australia	1,889	2,483
Other International	3,630	4,033
Corporate and other	653	884
Total depreciation and amortization	22,819	21,372

Schedule of identifiable assets

	June 30,   2013		March 31,    2013
Identifiable assets:
Europe	$	865,295	$	808,568
West Africa	373,840		390,402
North America	540,480		527,710
Australia	223,168		245,757
Other International	580,349		589,361
Corporate and other	475,355		388,894
Total identifiable assets (1)	$	3,058,487	$	2,950,692

Schedule of equity method investments

Investments in unconsolidated affiliates – equity method investments:
Europe (2)	$	7,942	$	8,569
North America	60,509		60,517
Other International	202,260		196,751
Total investments in unconsolidated affiliates – equity method investments	$	270,711	$	265,837