CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenue from Contract with Customer, Product and Service [Extensible List]	Service [Member]	Service [Member]	Service [Member]	Service [Member]
Revenue from services	$ 274,072	$ 339,771	$ 567,480	$ 718,945
Operating expenses:
Direct operating expenses	218,068	268,966	452,818	570,843
Selling, general and administrative expenses	50,050	60,255	102,536	123,507
Credit loss expense	30	18,858	65	20,148
Depreciation and amortization	4,101	4,719	8,873	9,361
Acquisition and integration-related costs	5,995	3	8,036	3
Restructuring costs	588	2,116	889	3,054
Legal and other losses	1,099	3,946	1,099	7,596
Impairment charges	0	114	0	718
Total operating expenses	279,931	358,977	574,316	735,230
Loss from operations	(5,859)	(19,206)	(6,836)	(16,285)
Other expenses (income):
Interest expense	549	568	1,092	1,030
Interest income	(702)	(235)	(1,383)	(408)
Other income, net	23	23	83	(1,034)
Loss before income taxes	(5,729)	(19,562)	(6,628)	(15,873)
Income tax expense (benefit)	930	(3,512)	521	(2,515)
Net loss attributable to common stockholders	(6,659)	(16,050)	(7,149)	(13,358)
Other comprehensive loss:
Unrealized foreign currency translation loss, net of tax	(5)	(1)	0	(4)
Comprehensive loss	$ (6,664)	$ (16,051)	$ (7,149)	$ (13,362)
Net loss per share attributable to common stockholders - Basic (in dollars per share)	$ (0.20)	$ (0.47)	$ (0.22)	$ (0.39)
Net loss per share attributable to common stockholders - Diluted (in dollars per share)	$ (0.20)	$ (0.47)	$ (0.22)	$ (0.39)
Weighted average common shares outstanding:
Basic (shares)	32,492	33,960	32,388	34,088
Diluted (shares)	32,492	33,960	32,388	34,088