CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Mar. 31, 2018
Current assets:
Cash and cash equivalents	$ 462,347	$ 808,973
Short-term investments	562,952	615,406
Restricted cash	370,747	437,398
Accounts receivable, net of allowances of $350 and $54,290 at September 30, 2018 and March 31, 2018, respectively	534,633	247,649
Inventory	40,541	15,162
Software development costs and licenses	36,912	33,284
Deferred cost of goods sold	20,957	117,851
Prepaid expenses and other	162,647	133,454
Total current assets	2,191,736	2,409,177
Fixed assets, net	110,900	102,478
Software development costs and licenses, net of current portion	794,120	639,369
Deferred cost of goods sold, net of current portion	489	26,719
Goodwill	389,816	399,530
Other intangibles, net	87,318	103,681
Other assets	80,810	56,887
Total assets	3,655,189	3,737,841
Current liabilities:
Accounts payable	77,298	35,029
Accrued expenses and other current liabilities	853,467	914,748
Deferred revenue	559,024	777,152
Total current liabilities	1,489,789	1,726,929
Long-term debt	0	8,068
Non-current deferred revenue	15,407	355,589
Other long-term liabilities	205,554	158,285
Total liabilities	1,710,750	2,248,871
Commitments and Contingencies (See Note 13)
Stockholders' equity:
Preferred stock, $.01 par value, 5,000 shares authorized; no shares issued and outstanding at September 30, 2018 and March 31, 2018	0	0
Common stock, $.01 par value, 200,000 shares authorized; 134,106 and 132,743 shares issued and 113,804 and 114,038 outstanding at September 30, 2018 and March 31, 2018, respectively	1,341	1,327
Additional paid-in capital	1,951,128	1,888,039
Treasury stock, at cost; 20,302 and 18,705 common shares at September 30, 2018 and March 31, 2018, respectively	(611,680)	(458,180)
Retained earnings	640,849	73,516
Accumulated other comprehensive loss	(37,199)	(15,732)
Total stockholders' equity	1,944,439	1,488,970
Total stockholders' equity	$ 3,655,189	$ 3,737,841