CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 1,422,884	$ 1,357,664
Short-term investments	1,308,692	644,003
Restricted cash and cash equivalents	538,822	546,604
Accounts receivable, net of allowances of $350 and $443 at March 31, 2021 and 2020, respectively	552,762	592,555
Inventory	17,742	19,108
Software development costs and licenses	43,443	40,316
Deferred cost of goods sold	15,524	19,598
Prepaid expenses and other	320,646	273,503
Total current assets	4,220,515	3,493,351
Fixed assets, net	149,364	131,888
Right-of-use assets	164,763	154,284
Software development costs and licenses, net of current portion	490,892	401,778
Goodwill	535,306	386,494
Other intangibles, net	121,591	51,260
Deferred tax assets	90,206	116,676
Long-term restricted cash and cash equivalents	98,541	89,124
Other assets	157,040	123,977
Total assets	6,028,218	4,948,832
Current liabilities:
Accounts payable	71,001	65,684
Accrued expenses and other current liabilities	1,204,090	1,169,884
Deferred revenue	928,029	777,784
Lease liabilities	31,595	25,187
Total current liabilities	2,234,715	2,038,539
Non-current deferred revenue	37,302	28,339
Non-current lease liabilities	159,671	152,059
Non-current software development royalties	110,127	104,417
Other long-term liabilities	154,511	86,234
Total liabilities	2,696,326	2,409,588
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value, 5,000 shares authorized: no shares issued and outstanding at March 31, 2021 and 2020	0	0
Common stock, $0.01 par value, 200,000 shares authorized; 137,584 and 135,927 shares issued and 115,163 and 113,506 outstanding at March 31, 2021 and 2020, respectively	1,376	1,359
Additional paid-in capital	2,288,781	2,134,748
Treasury stock, at cost; 22,421 common shares at March 31, 2021 and 2020, respectively	(820,572)	(820,572)
Retained earnings	1,870,971	1,282,085
Accumulated other comprehensive loss	(8,664)	(58,376)
Total stockholders' equity	3,331,892	2,539,244
Total liabilities and stockholders' equity	$ 6,028,218	$ 4,948,832