Segment Data - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	3
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Segment Reporting Information [Line Items]
Increase (decrease) in revenue		$ 1.7	$ 1.8
Increase (decrease) in contribution income (loss)		0.2	(0.2)
Nurse and Allied Staffing
Segment Reporting Information [Line Items]
Increase (decrease) in revenue		(1.7)	(1.8)
Increase (decrease) in contribution income (loss)		$ (0.2)	$ 0.2