CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 663,401,000	$ 717,811,000
Restricted cash	0	14,815,000
Trade accounts receivable, net	115,858,000	92,761,000
Refundable income taxes	47,709,000	38,340,000
Other current assets	31,685,000	32,666,000
Total current assets	858,653,000	896,393,000
Property and equipment, net of accumulated depreciation and amortization	13,521,000	19,321,000
Intangible assets, net	32,577,000	45,200,000
Goodwill	301,321,000	297,796,000
Deferred commissions, net	21,096,000	16,014,000
Other assets, net	32,332,000	27,165,000
Total assets	1,259,500,000	1,301,889,000
Current liabilities:
Trade accounts payable	44,464,000	42,204,000
Accrued payroll and related expenses	28,599,000	28,791,000
Other accrued expenses	72,480,000	68,991,000
Acquisition escrow payable	0	14,815,000
Deferred revenue	11,789,000	6,581,000
Total current liabilities	157,332,000	161,382,000
Other liabilities	43,667,000	52,995,000
Commitments and contingencies
Stockholders' equity:
Preferred stock	0	0
Common stock	14,647,000	14,394,000
Additional paid-in capital	1,574,347,000	1,496,565,000
Retained earnings	1,487,673,000	1,545,094,000
Accumulated other comprehensive income	7,814,000	5,745,000
Treasury stock, at cost	(2,025,980,000)	(1,974,286,000)
Total stockholders' equity	1,058,501,000	1,087,512,000
TOTAL LIABILITIES AND EQUITY	$ 1,259,500,000	$ 1,301,889,000