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Consolidated Statements Of Comprehensive (Loss) Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Consolidated Statements Of Comprehensive (Loss) Income [Abstract]
Net (loss) income	$ (66,131)	$ (136,827)	$ (186,284)
Other comprehensive (loss) income, net of tax:
Foreign currency translation (losses) gains	(887)	(1,790)	10,918
Unrealized gains on cash flow hedges			1,170
Reclassification of ineffective hedge gains to net income			(1,170)
Unrealized losses on investments	(28)		(90)
Total other comprehensive income (loss), net of tax	(915)	(1,790)	10,828
Comprehensive loss	$ (67,046)	$ (138,617)	$ (175,456)

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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