Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015
Related Party Transaction [Line Items]
Accounts receivable, allowance for doubtful accounts	$ 4,720	$ 173
Related party prepaid expenses and other current assets	49,421	13,495
Related party accounts payable	$ 52,660	$ 13,077
Preferred stock, par value (in USD per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in USD per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	114,075,319	50,812,548
Common stock, shares outstanding (in shares)	98,570,412	40,807,805
Treasury stock, shares (in shares)	15,504,907	10,004,743
Affiliated Entity
Related Party Transaction [Line Items]
Related party prepaid expenses and other current assets	$ 28,733	$ 0
Related party accounts payable	$ 5,009	$ 0