CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands		6 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
Operating activities:
Net income		$ 162,553	$ 187,826
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of software development costs and licenses		95,339	72,969
Impairment of software development costs and licenses		65,049	19,695
Depreciation		28,436	25,826
Amortization of intellectual property		33,668	11,801
Stock-based compensation		96,196	98,719
Other, net		2,067	(2,631)
Changes in assets and liabilities:
Accounts receivable		(242,844)	(189,477)
Inventory		5,155	(7,266)
Software development costs and licenses		(263,235)	(127,290)
Prepaid expenses and other assets		(35,745)	65,296
Deferred revenue		32,672	284,441
Deferred cost of goods sold		3,018	4,753
Accounts payable, accrued expenses and other liabilities		301,350	182,083
Net cash provided by operating activities		283,679	626,745
Investing activities:
Change in bank time deposits		1,021	(218,239)
Proceeds from available-for-sale securities		353,399	260,729
Purchases of available-for-sale securities		(492,582)	(435,511)
Purchases of fixed assets		(111,192)	(25,021)
Purchases of long-term investments		(3,122)	(9,100)
Business acquisitions		(131,617)	(75,482)
Net cash used in investing activities		(384,093)	(502,624)
Financing activities:
Tax payment related to net share settlements on restricted stock awards		(53,370)	(48,202)
Issuance of common stock		9,230	6,503
Loan repayment		(234)	0
Repurchase of common stock		(200,012)	0
Net cash used in financing activities		(244,386)	(41,699)
Effects of foreign currency exchange rates on cash, cash equivalents, and restricted cash and cash equivalents		(741)	8,966
Net change in cash, cash equivalents, and restricted cash and cash equivalents		(345,541)	91,388
Cash, cash equivalents, and restricted cash and cash equivalents, beginning of year	[1]	2,060,247	1,993,392
Cash, cash equivalents, and restricted cash and cash equivalents, end of period	[1]	$ 1,714,706	$ 2,084,780

[1] Cash, cash equivalents and restricted cash and cash equivalents shown on our Condensed Consolidated Statements of Cash Flow includes amounts in the Cash and cash equivalents, Restricted cash and cash equivalents, and Long-term restricted cash and cash equivalents on our Condensed Consolidated Balance Sheet.