Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 16,153	$ 26,279
Marketable securities, at fair value	95,985	95,200
Accounts and notes receivable, less allowance for doubtful accounts of $73,030 and $70,192 as of March 31, 2023 and December 31, 2022, respectively	350,784	336,777
Inventories and supplies	20,229	21,164
Taxes receivable	1,748	6,629
Prepaid expenses and other assets	25,188	22,583
Total current assets	510,087	508,632
Property and equipment, net	23,400	22,975
Goodwill	75,529	75,529
Other intangible assets, less accumulated amortization of $33,941 and $32,738 as of March 31, 2023 and December 31, 2022, respectively	14,743	15,946
Notes receivable — long–term portion, less allowance for doubtful accounts of $3,837 and $3,273 as of March 31, 2023 and December 31, 2022, respectively	32,327	32,609
Deferred compensation funding, at fair value	34,312	33,493
Deferred tax asset	27,975	28,338
Other long-term assets	760	812
Total assets	719,133	718,334
Current liabilities:
Accounts payable	64,351	68,296
Accrued payroll and related taxes	20,394	42,704
Other accrued expenses	17,088	17,835
Borrowings under line of credit	35,000	25,000
Deferred compensation liability — short-term	1,357	1,618
Accrued insurance claims	23,974	23,166
Total current liabilities	162,164	178,619
Accrued insurance claims — long-term	67,100	65,541
Deferred compensation liability — long-term	34,263	33,764
Lease liability — long-term	8,586	8,097
Other long-term liabilities	6,448	6,141
Commitments and contingencies (Note 15)
STOCKHOLDERS’ EQUITY:
Common stock, $0.01 par value; 100,000 shares authorized; 76,329 and 76,161 shares issued, and 74,194 and 74,088 shares outstanding as of March 31, 2023 and December 31, 2022, respectively	763	762
Additional paid-in capital	303,582	302,304
Retained earnings	167,190	154,495
Accumulated other comprehensive loss, net of taxes	(2,270)	(3,477)
Common stock in treasury, at cost, 2,135 and 2,073 shares as of March 31, 2023 and December 31, 2022, respectively	(28,693)	(27,912)
Total stockholders’ equity	440,572	426,172
Total liabilities and stockholders’ equity	$ 719,133	$ 718,334