Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 92,915	$ 60,158
Accounts receivable	1,847	1,339
Prepaid expenses	5,413	4,475
Inventory	499	675
Income tax receivable		692
Current assets before funds held for clients	100,674	67,339
Funds held for clients	950,980	858,244
Total current assets	1,051,654	925,583
Property and equipment, net	106,485	96,848
Deposits and other assets	1,369	1,215
Goodwill	51,889	51,889
Intangible assets, net	1,468	1,871
Deferred income tax assets, net	5,687	1,207
Total assets	1,218,552	1,078,613
Current liabilities:
Accounts payable	3,134	3,737
Income tax payable	16,577
Accrued commissions and bonuses	2,726	8,003
Accrued payroll and vacation	7,688	4,769
Deferred revenue	5,611	5,230
Current portion of long-term debt	1,126	1,113
Accrued expenses and other current liabilities	17,587	17,798
Current liabilities before client funds obligation	54,449	40,650
Client funds obligation	950,980	858,244
Total current liabilities	1,005,429	898,894
Long-term deferred revenue	36,555	34,481
Net long-term debt, less current portion	30,389	28,711
Total long-term liabilities	66,944	63,192
Commitments and contingencies
Stockholders' equity:
Common stock, $0.01 par value (100,000,000 shares authorized; 58,471,563 and 58,453,283 shares issued at March 31, 2017 and December 31, 2016, respectively; 57,349,302 and 57,331,022 shares outstanding at March 31, 2017 and December 31, 2016, respectively)	585	585
Additional paid-in capital	99,490	95,452
Retained earnings	96,062	70,448
Treasury stock, at cost (1,122,261 shares at March 31, 2017 and December 31, 2016)	(49,958)	(49,958)
Total stockholders' equity	146,179	116,527
Total liabilities and stockholders' equity	$ 1,218,552	$ 1,078,613