CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 103,486	$ 19,831
Trade receivables, net of allowances of $3,204 and $2,078, respectively	228,373	217,929
Prepaid expenses and other current assets	7,033	7,475
Total current assets	338,892	245,235
Fixed assets, net	26,804	29,975
Other assets, net	77,575	72,838
Deferred tax assets, net	10,738	8,037
Goodwill	25,040	25,040
Total assets	479,049	381,125
Current liabilities:
Accounts payable and other accrued liabilities	35,533	33,232
Accrued payroll costs	65,849	44,001
Current portion of operating lease liabilities	5,520	5,685
Other current liabilities	300	1,168
Income taxes payable	964	878
Total current liabilities	108,166	84,964
Long-term debt – credit facility	100,000	65,000
Other long-term liabilities	90,948	63,898
Total liabilities	299,114	213,862
Commitments and contingencies (Note 18)
Stockholders’ equity:
Preferred stock, $0.01 par; 15,000 shares authorized, none issued and outstanding	0	0
Common stock, $0.01 par; 250,000 shares authorized, 72,600 and 72,202 issued and outstanding, respectively	726	722
Additional paid-in capital	472,378	459,545
Accumulated other comprehensive loss	(4,423)	(1,526)
Retained earnings	388,645	350,545
Treasury stock, at cost; 50,427 and 49,277 shares, respectively	(677,391)	(642,023)
Total stockholders’ equity	179,935	167,263
Total liabilities and stockholders’ equity	$ 479,049	$ 381,125