Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 424	$ 3,494
Restricted cash	32,985	27,880
Accounts receivable, net	188,300	175,354
Income taxes refundable/receivable	813
Other current assets	22,539	21,407
Current assets before funds held for clients	245,061	228,135
Funds held for clients	203,112	213,457
Total current assets	448,173	441,592
Non-current assets:
Property and equipment, net	26,081	19,450
Goodwill and other intangible assets, net	613,206	584,401
Assets of deferred compensation plan	85,589	69,912
Notes receivable	620	1,227
Other non-current assets	2,562	2,006
Total non-current assets	728,058	676,996
Total assets	1,176,231	1,118,588
Current liabilities:
Accounts payable	51,375	45,772
Income taxes payable		1,048
Accrued personnel costs	45,264	45,221
Notes payable	1,861	1,060
Contingent purchase price liability	15,151	16,322
Other current liabilities	17,013	16,169
Current liabilities before client fund obligations	130,664	125,592
Client fund obligations	203,582	213,855
Total current liabilities	334,246	339,447
Non-current liabilities:
Bank debt	178,500	191,400
Debt issuance costs	(828)	(1,351)
Total long-term debt	177,672	190,049
Notes payable	2,164	1,721
Income taxes payable	4,454	4,426
Deferred income taxes, net	3,339	3,545
Deferred compensation plan obligations	85,589	69,912
Contingent purchase price liability	22,423	17,387
Other non-current liabilities	15,465	12,080
Total non-current liabilities	311,106	299,120
Total liabilities	645,352	638,567
STOCKHOLDERS’ EQUITY
Common stock, par value $0.01 per share; shares authorized 250,000; shares issued 130,075 and 128,191; shares outstanding 54,591 and 54,044	1,301	1,282
Additional paid-in capital	675,504	655,629
Retained earnings	345,302	294,925
Treasury stock, 75,484 and 74,147 shares	(491,046)	(471,311)
Accumulated other comprehensive loss	(182)	(504)
Total stockholders’ equity	530,879	480,021
Total liabilities and stockholders’ equity	$ 1,176,231	$ 1,118,588