CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		12 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Operating activities:
Net (loss) income		$ (1,124.7)	$ 418.0	$ 588.9
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Amortization and impairment of software development costs and licenses		268.3	153.3	144.3
Stock-based compensation		317.8	183.0	110.5
Noncash lease expense		81.7	34.5	30.6
Amortization and impairment of intellectual property		1,506.7	64.8	32.2
Depreciation		90.3	61.2	56.3
Interest expense		108.6	0.0	0.0
Amortization of debt issuance costs		14.1	6.5	0.0
Deferred income taxes		(410.8)	8.1	10.6
Fair value adjustments		31.5	(6.0)	(41.6)
Other, net		(26.6)	16.2	5.5
Changes in assets and liabilities, net of effect from purchases of businesses:
Accounts receivable		106.8	(17.9)	47.2
Software development costs and licenses		(492.8)	(387.0)	(221.4)
Prepaid expenses, other current and other non-current assets		77.2	(200.2)	(82.0)
Deferred revenue		(141.9)	(30.9)	152.5
Accounts payable, accrued expenses and other liabilities		(405.1)	(45.6)	78.7
Net cash provided by operating activities		1.1	258.0	912.3
Investing activities:
Change in bank time deposits		100.0	447.0	(387.8)
Proceeds from available-for-sale securities		542.0	779.9	546.3
Purchases of available-for-sale securities		0.0	(756.3)	(824.5)
Purchases of fixed assets		(204.2)	(158.6)	(68.9)
Proceeds from sale of long-term investment		20.6	0.0	47.5
Purchase of long-term investments		(15.7)	(12.3)	(16.9)
Business acquisitions, net of cash acquired		(3,310.9)	(161.3)	(102.5)
Other		(8.1)	0.8	0.0
Net cash (used in) provided by investing activities		(2,876.3)	139.2	(806.8)
Financing activities:
Tax payment related to net share settlements on restricted stock awards		(108.1)	(64.1)	(71.6)
Repurchase of common stock		0.0	(200.0)	0.0
Issuance of common stock		65.4	19.7	14.2
Cost of debt		(22.4)	(12.2)	0.0
Repayment of debt		(200.0)	(0.2)	0.0
Settlement of capped calls		140.1	0.0	0.0
Payment of convertible notes		(1,166.8)	0.0	0.0
Proceeds from issuance of debt		3,248.9	0.0	0.0
Payment of contingent earn-out consideration		(26.8)	0.0	0.0
Net cash provided by (used in) financing activities		1,930.3	(256.8)	(57.4)
Effects of foreign currency exchange rates on cash, cash equivalents, and restricted cash and cash equivalents		(15.9)	(5.2)	18.6
Net change in cash, cash equivalents, and restricted cash and cash equivalents		(960.8)	135.2	66.8
Cash, cash equivalents, and restricted cash and cash equivalents, beginning of year	[1]	2,195.4	2,060.2	1,993.4
Cash, cash equivalents, and restricted cash equivalents, end of year	[1]	1,234.6	2,195.4	2,060.2
Supplemental data:
Interest paid		79.0	0.0	1.9
Income taxes paid		$ 176.8	$ 31.0	$ 70.7

[1] Cash, cash equivalents and restricted cash and cash equivalents shown on our 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 Consolidated Balance Sheet.