CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Current assets:
Cash and cash equivalents	$ 826,525	$ 808,973
Short-term investments	744,485	615,406
Restricted cash	565,461	437,398
Accounts receivable, net of allowances of $995 and $54,290 at March 31, 2019 and 2018, respectively	395,729	247,649
Inventory	28,200	15,162
Software development costs and licenses	28,880	33,284
Deferred cost of goods sold	51,867	117,851
Prepaid expenses and other	186,688	133,454
Total current assets	2,827,835	2,409,177
Fixed assets, net	127,882	102,478
Software development costs and licenses, net of current portion	603,436	639,369
Deferred cost of goods sold, net of current portion	1,028	26,719
Goodwill	381,717	399,530
Other intangibles, net	73,115	103,681
Deferred tax assets	134,732	4,930
Other assets	93,320	51,957
Total assets	4,243,065	3,737,841
Current liabilities:
Accounts payable	72,797	35,029
Accrued expenses and other current liabilities	1,035,695	914,748
Deferred revenue	843,302	777,152
Total current liabilities	1,951,794	1,726,929
Long-term debt	0	8,068
Non-current deferred revenue	21,058	355,589
Other long-term liabilities	229,633	158,285
Total liabilities	2,202,485	2,248,871
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.01 par value, 5,000 shares authorized: no shares issued and outstanding at March 31, 2019 and 2018	0	0
Common stock, $.01 par value, 200,000 shares authorized; 134,602 and 132,743 shares issued and 112,181 and 114,038 outstanding at March 31, 2019 and 2018, respectively	1,346	1,327
Additional paid-in capital	2,019,369	1,888,039
Treasury stock, at cost; 22,421 and 18,705 common shares at March 31, 2019 and 2018, respectively	(820,572)	(458,180)
Retained earnings	877,626	73,516
Accumulated other comprehensive loss	(37,189)	(15,732)
Total stockholders' equity	2,040,580	1,488,970
Total liabilities and stockholders' equity	$ 4,243,065	$ 3,737,841