CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net earnings (loss)	$ (90,268)	$ (124,511)	$ 1,028,547
Earnings from discontinued operations	0	(750)	(1,162,494)
Non-cash operating activities:
Depreciation and amortization	27,741	35,901	33,782
Loss on disposal or impairment of assets	388	1,725	3,460
Provision for doubtful accounts	2,915	7,133	3,069
Deferred income taxes	(1,418)	(6,878)	9,894
Non-cash stock compensation expense	111,707	89,447	102,722
Changes in operating assets and liabilities:
Accounts receivable, net	(24,828)	(20,518)	(44,411)
Deferred commissions	(6,605)	(5,273)	(4,298)
Other assets	(18,772)	(6,144)	(3,106)
Accounts payable and other liabilities	(116)	24,923	25,308
Income taxes, net	(26,215)	(25,453)	5,087
Deferred revenue	4,911	1,823	462
Net cash used in operating activities	(20,560)	(28,575)	(1,978)
Cash flows from investing activities:
Capitalized software	0	0	(1,322)
Capital expenditures	(2,182)	(11,711)	(7,320)
Proceeds from sales of assets	0	873	0
Cash paid in acquisitions, net of cash received	(76,012)	(105,365)	0
Purchases of investments	(7,500)	0	0
Purchases of strategic investments	(2,200)	0	(2,500)
Net cash used in investing activities	(87,894)	(116,203)	(11,142)
Cash flows from financing activities:
Payments of debt	0	0	(233,293)
Fees from debt refinancing	0	0	(300)
Proceeds related to the issuance of common stock under stock and employee benefit plans	8,737	4,736	20,419
Shares repurchased for tax withholdings upon vesting of stock-based awards	(9,920)	(24,522)	(50,520)
Acquisition of treasury stock from tender offer	0	0	(503,393)
Acquisition of treasury stock	(42,312)	(182,190)	(74,421)
Net cash used in financing activities	(43,495)	(201,976)	(841,508)
Net cash used in continuing operations	(151,949)	(346,754)	(854,628)
Cash flows from discontinued operations:
From operating activities	0	(207)	(458,525)
From investing activities	0	18,582	2,236,530
Effect of exchange rate changes on cash	0	0	(172)
Net cash provided by discontinued operations	0	18,375	1,777,833
Effect of exchange rate changes on cash	1,010	(468)	(1,750)
Net change in cash, cash equivalents and restricted cash	(150,939)	(328,847)	921,455
Cash, cash equivalents and restricted cash at beginning of period	732,626	1,061,473	140,018
Cash, cash equivalents and restricted cash at end of period	581,687	732,626	1,061,473
Supplemental cash flow information:
Cash paid (received) for income taxes, net	$ (2,911)	$ (7,344)	$ 439,542