Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 1,997	$ 4,652
Restricted cash	30,383	23,951
Accounts receivable, net	242,168	216,175
Other current assets	19,217	24,213
Current assets before funds held for clients	293,765	268,991
Funds held for clients	157,909	167,440
Total current assets	451,674	436,431
Non-current assets:
Property and equipment, net	43,423	41,346
Goodwill and other intangible assets, net	840,783	756,750
Assets of deferred compensation plan	136,321	127,332
Operating lease right-of-use asset, net	151,145	147,843
Other non-current assets	4,588	4,052
Total non-current assets	1,176,260	1,077,323
Total assets	1,627,934	1,513,754
Current liabilities:
Accounts payable	65,757	64,119
Income taxes payable	1,671	2,788
Accrued personnel costs	114,032	79,978
Contingent purchase price liability	34,373	20,288
Operating lease liability	30,586	30,483
Other current liabilities	18,755	13,629
Current liabilities before client fund obligations	265,174	211,285
Client fund obligations	158,115	166,989
Total current liabilities	423,289	378,274
Non-current liabilities:
Bank debt	155,300	108,000
Debt issuance costs	(449)	(808)
Total long-term debt	154,851	107,192
Income taxes payable	1,727	1,775
Deferred income taxes, net	15,440	8,752
Deferred compensation plan obligations	136,321	127,332
Contingent purchase price liability	44,766	34,103
Operating lease liability	145,808	142,020
Other non-current liabilities	1,184	11,686
Total non-current liabilities	500,097	432,860
Total liabilities	923,386	811,134
STOCKHOLDERS’ EQUITY
Common stock, par value $0.01 per share; shares authorized 250,000; shares issued 135,187 and 134,144; shares outstanding 52,038 and 54,099	1,352	1,341
Additional paid-in capital	770,117	740,970
Retained earnings	628,762	557,875
Treasury stock, 83,149 and 80,045 shares	(694,716)	(595,297)
Accumulated other comprehensive loss	(967)	(2,269)
Total stockholders’ equity	704,548	702,620
Total liabilities and stockholders’ equity	$ 1,627,934	$ 1,513,754