Condensed Consolidated Statements of Comprehensive (Loss) Income (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (6,353)us-gaap_NetIncomeLoss	$ (8,417)us-gaap_NetIncomeLoss	$ (45,292)us-gaap_NetIncomeLoss	$ (33,553)us-gaap_NetIncomeLoss
Other comprehensive loss, net of tax:
Foreign currency translation (losses) gains	(188)	358	(1,279)	1,015
Total other comprehensive income (loss), net of tax	(188)	358	(1,279)	1,015
Comprehensive loss	$ (6,541)us-gaap_ComprehensiveIncomeNetOfTax	$ (8,059)us-gaap_ComprehensiveIncomeNetOfTax	$ (46,571)us-gaap_ComprehensiveIncomeNetOfTax	$ (32,538)us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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