Income Taxes- Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Provision for (benefit from) income taxes	$ (1,324)	$ 3,096
Effective income tax rates (as a percent)	(21.70%)	13.60%
Discrete tax benefit due to preferential income tax rate reduction	$ 2,200	$ 800
Unrecognized tax benefits	79,200		$ 79,000
Unrecognized tax benefits that would impact effective tax rate	79,200		79,000
Income taxes payable	74,831		72,107
Current income taxes payable	100		100
Accrued interest and penalties related to uncertain tax positions	4,600		$ 4,900
Expected decrease in uncertain tax positions	$ 17,000