SEGMENT DATA - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 segment	Mar. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	3
Nurse And Allied Staffing
Segment Reporting Information [Line Items]
Increase (decrease) in revenue		$ (0.4)
Increase (decrease) in contribution income (loss)		(0.1)
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Segment Reporting Information [Line Items]
Increase (decrease) in revenue		0.4
Increase (decrease) in contribution income (loss)		$ 0.1