Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 400,730	$ 277,978
Accounts receivable	22,843	9,490
Prepaid expenses	34,056	23,729
Inventory	1,607	1,131
Income tax receivable	5,583	16,413
Deferred contract costs	96,378	76,724
Current assets before funds held for clients	561,197	405,465
Funds held for clients	2,202,975	1,846,573
Total current assets	2,764,172	2,252,038
Property and equipment, net	402,448	348,953
Intangible assets, net	54,017	58,028
Goodwill	51,889	51,889
Long-term deferred contract costs	567,974	461,852
Other assets	62,013	42,385
Total assets	3,902,513	3,215,145
Current liabilities:
Accounts payable	16,054	5,772
Accrued commissions and bonuses	28,439	22,357
Accrued payroll and vacation	45,023	34,259
Deferred revenue	19,825	16,277
Current portion of long-term debt	0	1,775
Accrued expenses and other current liabilities	59,990	63,397
Current liabilities before client funds obligation	169,331	143,837
Client funds obligation	2,207,706	1,846,573
Total current liabilities	2,377,037	1,990,410
Deferred income tax liabilities, net	141,033	145,504
Long-term deferred revenue	97,591	85,149
Net long-term debt, less current portion	29,000	27,380
Other long-term liabilities	75,245	72,988
Total long-term liabilities	342,869	331,021
Total liabilities	2,719,906	2,321,431
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.01 par value (100,000 shares authorized, 62,518 and 62,298 shares issued at December 31, 2022 and December 31, 2021, respectively; 57,867 and 58,012 shares outstanding at December 31, 2022 and December 31, 2021, respectively)	625	623
Additional paid-in capital	576,622	465,594
Retained earnings	1,196,968	915,579
Accumulated other comprehensive earnings (loss)	(3,703)
Treasury stock, at cost (4,651 and 4,286 shares at December 31, 2022 and December 31, 2021, respectively)	(587,905)	(488,082)
Total stockholders’ equity	1,182,607	893,714
Total liabilities and stockholders’ equity	$ 3,902,513	$ 3,215,145