Disaggregation of Revenue - Schedule of Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Total Revenue	$ 353,319	$ 373,122	$ 1,061,526	$ 1,168,309
Flex revenue
Disaggregation of Revenue [Line Items]
Total Revenue	345,832	364,161	1,039,340	1,138,163
Direct Hire revenue
Disaggregation of Revenue [Line Items]
Total Revenue	7,487	8,961	22,186	30,146
Technology
Disaggregation of Revenue [Line Items]
Total Revenue	325,511	338,289	975,469	1,055,158
Technology | Flex revenue
Disaggregation of Revenue [Line Items]
Total Revenue	322,118	334,253	964,696	1,040,103
Technology | Direct Hire revenue
Disaggregation of Revenue [Line Items]
Total Revenue	3,393	4,036	10,773	15,055
FA
Disaggregation of Revenue [Line Items]
Total Revenue	27,808	34,833	86,057	113,151
FA | Flex revenue
Disaggregation of Revenue [Line Items]
Total Revenue	23,714	29,908	74,644	98,060
FA | Direct Hire revenue
Disaggregation of Revenue [Line Items]
Total Revenue	$ 4,094	$ 4,925	$ 11,413	$ 15,091