Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 294,025	$ 400,730
Accounts receivable	16,442	22,843
Prepaid expenses	37,613	34,056
Inventory	1,383	1,607
Income tax receivable	18,391	5,583
Deferred contract costs	118,206	96,378
Current assets before funds held for clients	486,060	561,197
Funds held for clients	2,327,366	2,202,975
Total current assets	2,813,426	2,764,172
Property and equipment, net	498,197	402,448
Intangible assets, net	50,112	54,017
Goodwill	51,889	51,889
Long-term deferred contract costs	680,272	567,974
Other assets	103,643	62,013
Total assets	4,197,539	3,902,513
Current liabilities:
Accounts payable	13,875	16,054
Accrued commissions and bonuses	30,492	28,439
Accrued payroll and vacation	56,086	45,023
Deferred revenue	22,812	19,825
Accrued expenses and other current liabilities	83,302	59,990
Current liabilities before client funds obligation	206,567	169,331
Client funds obligation	2,328,076	2,207,706
Total current liabilities	2,534,643	2,377,037
Deferred income tax liabilities, net	143,750	141,033
Long-term deferred revenue	107,657	97,591
Long-term debt		29,000
Other long-term liabilities	108,453	75,245
Total long-term liabilities	359,860	342,869
Total liabilities	2,894,503	2,719,906
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.01 par value (100,000 shares authorized, 62,675 and 62,518 shares issued at December 31, 2023 and December 31, 2022, respectively; 56,528 and 57,867 shares outstanding at December 31, 2023 and December 31, 2022, respectively)	627	625
Additional paid-in capital	724,493	576,622
Retained earnings	1,469,981	1,196,968
Accumulated other comprehensive earnings (loss)	(1,039)	(3,703)
Treasury stock, at cost (6,147 and 4,651 shares at December 31, 2023 and December 31, 2022, respectively)	(891,026)	(587,905)
Total stockholders’ equity	1,303,036	1,182,607
Total liabilities and stockholders’ equity	$ 4,197,539	$ 3,902,513