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GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS - Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Goodwill [Roll Forward]
Goodwill, beginning balance			$ 897,456
Goodwill impairment loss	$ (109,515)	$ 0	(109,515)	$ 0
Goodwill in assets held for sale			(32,132)
Goodwill, ending balance	755,809		755,809
Accumulated impairment loss	546,911		546,911		$ 437,396
Nurse and Allied Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance			259,137
Goodwill impairment loss			0
Goodwill in assets held for sale			0
Goodwill, ending balance	259,137		259,137
Accumulated impairment loss	277,727		277,727		277,727
Physician and Leadership Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance			237,760
Goodwill impairment loss	(109,515)		(109,515)
Goodwill in assets held for sale			0
Goodwill, ending balance	128,245		128,245
Accumulated impairment loss	269,184		269,184		159,669
Technology and Workforce Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance			400,559
Goodwill impairment loss			0
Goodwill in assets held for sale			(32,132)
Goodwill, ending balance	368,427		368,427
Accumulated impairment loss	$ 0		$ 0		$ 0

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