Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue from services	$ 309,940	$ 315,119	$ 339,771	$ 379,174	$ 414,035	$ 442,291	$ 540,695	$ 622,707	$ 1,344,004	$ 2,019,728	$ 2,803,381
Temporary Staffing Services
Disaggregation of Revenue [Line Items]
Revenue from services									1,302,354	1,963,566	2,727,300
Other Services
Disaggregation of Revenue [Line Items]
Revenue from services									41,650	56,162	76,081
Nurse And Allied Staffing
Disaggregation of Revenue [Line Items]
Revenue from services									1,145,419	1,841,428	2,697,155
Nurse And Allied Staffing | Temporary Staffing Services
Disaggregation of Revenue [Line Items]
Revenue from services									1,113,725	1,794,489	2,625,860
Nurse And Allied Staffing | Other Services
Disaggregation of Revenue [Line Items]
Revenue from services									31,694	46,939	71,295
Physician Staffing
Disaggregation of Revenue [Line Items]
Revenue from services									198,585	178,300	106,226
Physician Staffing | Temporary Staffing Services
Disaggregation of Revenue [Line Items]
Revenue from services									188,629	169,077	101,440
Physician Staffing | Other Services
Disaggregation of Revenue [Line Items]
Revenue from services									$ 9,956	$ 9,223	$ 4,786