UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenue	$ 405,997	$ 416,967
Direct costs	292,021	293,081
Gross profit	113,976	123,886
Selling, general and administrative expenses	89,339	95,049
Depreciation and amortization	1,234	1,093
Income from operations	23,403	27,744
Other expense, net	1,045	1,433
Income from operations, before income taxes	22,358	26,311
Income tax expense	6,148	7,130
Net income	16,210	19,181
Other comprehensive income, net of tax:
Change in fair value of interest rate swaps	0	2,302
Comprehensive income	$ 16,210	$ 21,483
Earnings per share – basic (in dollars per share)	$ 0.83	$ 0.94
Earnings per share - diluted (in dollars per share)	$ 0.82	$ 0.93
Weighted average shares outstanding – basic (in shares)	19,455	20,319
Weighted average shares outstanding – diluted (in shares)	19,667	20,730