CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating activities:
Net income	$ 281,737	$ 277,007
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization and impairment of software development costs and licenses	115,823	160,167
Depreciation	35,246	28,769
Amortization and impairment of intellectual property	15,981	17,785
Stock-based compensation	176,598	178,609
Other, net	1,809	(3,912)
Changes in assets and liabilities:
Accounts receivable	(249,709)	(525,981)
Inventory	3,688	(26,352)
Software development costs and licenses	(18,552)	(157,710)
Prepaid expenses and other assets	(215,060)	(142,918)
Deferred revenue	11,751	328,325
Deferred cost of goods sold	18,602	(37,281)
Accounts payable, accrued expenses and other liabilities	262,061	293,691
Net cash provided by operating activities	439,975	390,199
Investing activities:
Change in bank time deposits	114,720	64,101
Proceeds from available-for-sale securities	243,170	184,542
Purchases of available-for-sale securities	(311,995)	(179,570)
Purchases of fixed assets	(34,790)	(43,646)
Purchases of long-term investments	(26,142)	0
Business acquisitions	(12,040)	(3,149)
Net cash (used in) provided by investing activities	(27,077)	22,278
Financing activities:
Tax payment related to net share settlements on restricted stock awards	(71,260)	(85,837)
Issuance of common stock	10,515	0
Repurchase of common stock	0	(262,392)
Net cash used in financing activities	(60,745)	(348,229)
Effects of foreign currency exchange rates on cash, cash equivalents, and restricted cash	(1,705)	(15,124)
Net change in cash, cash equivalents, and restricted cash	350,448	49,124
Cash, cash equivalents, and restricted cash, beginning of year	1,391,986	1,246,371
Cash, cash equivalents, and restricted cash, end of period	$ 1,742,434	$ 1,295,495