CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net income	$ 370,074	$ 281,737
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization and impairment of software development costs and licenses	113,392	115,823
Depreciation	40,790	35,246
Amortization and impairment of intellectual property	22,006	15,981
Stock-based compensation	139,835	176,598
Gain on long-term investments	(40,588)	0
Other, net	(89)	1,809
Changes in assets and liabilities:
Accounts receivable	19,544	(249,709)
Inventory	(6,452)	3,688
Software development costs and licenses	(144,951)	(18,552)
Prepaid expenses and other assets	(49,321)	(215,060)
Deferred revenue	208,182	11,751
Deferred cost of goods sold	463	18,602
Accounts payable, accrued expenses and other liabilities	114,776	262,061
Net cash provided by operating activities	787,661	439,975
Investing activities:
Change in bank time deposits	73,000	114,720
Proceeds from available-for-sale securities	363,628	243,170
Purchases of available-for-sale securities	(563,815)	(311,995)
Purchases of fixed assets	(40,207)	(34,790)
Proceeds from sale of long-term investment	22,472	0
Purchases of long-term investments	(16,452)	(26,142)
Business acquisitions	(79,525)	(12,040)
Net cash used in investing activities	(240,899)	(27,077)
Financing activities:
Tax payment related to net share settlements on restricted stock awards	(60,586)	(71,260)
Issuance of common stock	14,215	10,515
Net cash used in financing activities	(46,371)	(60,745)
Effects of foreign currency exchange rates on cash, cash equivalents, and restricted cash and cash equivalents	19,006	(1,705)
Net change in cash, cash equivalents, and restricted cash and cash equivalents	519,397	350,448
Cash, cash equivalents, and restricted cash and cash equivalents, beginning of year	1,993,392	1,391,986
Cash, cash equivalents, and restricted cash and cash equivalents, end of period	$ 2,512,789	$ 1,742,434