Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 558	$ 1,997
Restricted cash	33,394	30,383
Accounts receivable, net	365,758	242,168
Other current assets	12,784	19,217
Current assets before funds held for clients	412,494	293,765
Funds held for clients	199,065	157,909
Total current assets	611,559	451,674
Non-current assets:
Property and equipment, net	43,184	43,423
Goodwill and other intangible assets, net	951,902	840,783
Assets of deferred compensation plan	132,284	136,321
Operating lease right-of-use assets, net	195,591	151,145
Other non-current assets	7,924	4,588
Total non-current assets	1,330,885	1,176,260
Total assets	1,942,444	1,627,934
Current liabilities:
Accounts payable	70,431	65,757
Income taxes payable	17,678	1,671
Accrued personnel costs	66,696	114,032
Contingent purchase price liabilities	49,976	34,373
Operating lease liabilities	34,910	30,586
Other current liabilities	18,070	18,755
Current liabilities before client fund obligations	257,761	265,174
Client fund obligations	200,614	158,115
Total current liabilities	458,375	423,289
Non-current liabilities:
Bank debt	298,900	155,300
Debt issuance costs	(359)	(449)
Total long-term debt	298,541	154,851
Income taxes payable	1,820	1,727
Deferred income taxes, net	18,960	15,440
Deferred compensation plan obligations	132,284	136,321
Contingent purchase price liabilities	86,558	44,766
Operating lease liabilities	185,122	145,808
Other non-current liabilities	936	1,184
Total non-current liabilities	724,221	500,097
Total liabilities	1,182,596	923,386
STOCKHOLDERS' EQUITY
Common stock	1,358	1,352
Additional paid in capital	777,731	770,117
Retained earnings	686,889	628,762
Treasury stock	(707,088)	(694,716)
Accumulated other comprehensive income (loss)	958	(967)
Total stockholders’ equity	759,848	704,548
Total liabilities and stockholders’ equity	$ 1,942,444	$ 1,627,934