Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Net income	$ 113,688us-gaap_NetIncomeLoss	$ 7,351us-gaap_NetIncomeLoss	$ 15,014us-gaap_NetIncomeLoss
Other comprehensive (loss) income:
Foreign currency translation (losses) gains	(16,613)	3,025	(1,974)
Net unrealized gains (losses) on marketable securities	13	(18)	2
Other comprehensive (loss) income	(16,600)	3,007	(1,972)
Comprehensive income	$ 97,088us-gaap_ComprehensiveIncomeNetOfTax	$ 10,358us-gaap_ComprehensiveIncomeNetOfTax	$ 13,042us-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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