CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activities:
Net loss	$ (12,288)	$ (76,772)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Amortization and impairment of software development costs and licenses	40,719	10,136
Depreciation and amortization	13,928	9,278
Amortization and impairment of intellectual property	160	259
Stock-based compensation	35,406	23,846
Deferred income taxes	68	599
Amortization of discount on Convertible Notes	11,544	10,840
Amortization of debt issuance costs	792	853
Gain on long-term investments, net		(18,976)
Other, net	1,102	181
Changes in assets and liabilities:
Restricted cash	(45,548)	116,296
Accounts receivable	(22,668)	27,716
Inventory	(3,755)	(26,168)
Software development costs and licenses	(117,959)	(104,492)
Prepaid expenses, other current and other non-current assets	(13,250)	(5,847)
Deferred revenue	113,042	46,765
Deferred cost of goods sold	(38,440)	(1,644)
Accounts payable, accrued expenses and other liabilities	57,161	(144,692)
Net cash provided by (used in) operating activities	20,014	(131,822)
Investing activities:
Purchases of fixed assets	(25,793)	(23,054)
Purchases of short-term investments, net	(167,388)	(49,591)
Cash received from sale of long-term investment		21,976
Net cash used in investing activities	(193,181)	(50,669)
Financing activities:
Excess tax benefit from stock-based compensation	9,529	4,843
Tax payment related to net share settlements on restricted stock awards	(10,386)
Repurchase of common stock	(26,552)
Net cash (used in) provided by financing activities	(27,409)	4,843
Effects of foreign currency exchange rates on cash and cash equivalents	1,169	(3,342)
Net decrease in cash and cash equivalents	(199,407)	(180,990)
Cash and cash equivalents, beginning of year	911,120	935,400
Cash and cash equivalents, end of period	$ 711,713	$ 754,410