CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,284,861	$ 826,525
Short-term investments	699,269	744,485
Restricted cash and cash equivalents	457,573	565,461
Accounts receivable, net of allowances of $443 and $995 at December 31, 2019 and March 31, 2019, respectively	647,460	395,729
Inventory	24,426	28,200
Software development costs and licenses	59,802	28,880
Deferred cost of goods sold	33,079	51,867
Prepaid expenses and other	228,567	186,688
Total current assets	3,435,037	2,827,835
Fixed assets, net	127,417	127,882
Right-of-use assets	153,053	0
Software development costs and licenses, net of current portion	440,752	603,436
Deferred cost of goods sold, net of current portion	912	1,028
Goodwill	391,815	381,717
Other intangibles, net	56,596	73,115
Deferred tax assets	110,831	134,732
Other assets	163,220	93,320
Total assets	4,879,633	4,243,065
Current liabilities:
Accounts payable	82,491	72,797
Accrued expenses and other current liabilities	1,147,918	1,035,695
Deferred revenue	841,814	843,302
Lease liabilities	24,108	0
Total current liabilities	2,096,331	1,951,794
Non-current deferred revenue	32,962	21,058
Non-current lease liabilities	151,400	0
Other long-term liabilities	196,905	229,633
Total liabilities	2,477,598	2,202,485
Commitments and contingencies (See Note 13)
Stockholders' equity:
Preferred stock, $.01 par value, 5,000 shares authorized; no shares issued and outstanding at December 31, 2019 and March 31, 2019	0	0
Common stock, $.01 par value, 200,000 shares authorized; 135,771 and 134,602 shares issued and 113,350 and 112,181 outstanding at December 31, 2019 and March 31, 2019, respectively	1,358	1,346
Additional paid-in capital	2,100,373	2,019,369
Treasury stock, at cost; 22,421 common shares at December 31, 2019 and March 31, 2019	(820,572)	(820,572)
Retained earnings	1,159,363	877,626
Accumulated other comprehensive loss	(38,487)	(37,189)
Total stockholders' equity	2,402,035	2,040,580
Total liabilities and stockholders' equity	$ 4,879,633	$ 4,243,065