CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue from Contract with Customer, Product and Service [Extensible List]	Service [Member]	Service [Member]
Revenue from services	$ 379,174	$ 622,707
Operating expenses:
Direct operating expenses	301,877	483,284
Selling, general and administrative expenses	63,252	84,260
Bad debt expense	1,290	4,908
Depreciation and amortization	4,642	4,904
Restructuring costs	938	429
Legal and other losses	3,650	1,125
Impairment charges	604	0
Total operating expenses	376,253	578,910
Income from operations	2,921	43,797
Other expenses (income):
Interest expense	462	3,690
Other income, net	(1,230)	(12)
Income before income taxes	3,689	40,119
Income tax expense	997	10,683
Net income attributable to common stockholders	2,692	29,436
Other comprehensive (loss) income:
Unrealized foreign currency translation (loss) gain, net of tax	(3)	7
Comprehensive income	$ 2,689	$ 29,443
Net income per share attributable to common stockholders - Basic (in dollars per share)	$ 0.08	$ 0.82
Net income per share attributable to common stockholders - Diluted (in dollars per share)	$ 0.08	$ 0.81
Weighted average common shares outstanding:
Basic (shares)	34,216	35,864
Diluted (shares)	34,597	36,560