Acquisitions - Preliminary Purchase (Details) - USD ($) $ in Thousands			12 Months Ended
	May 06, 2020	Sep. 21, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
ModivCare’s acquisition date fair value equity interest in Circulation			$ 0	$ 0	$ 9,577
Cash acquired			(21,182)	0	(1,302)
Purchase price			$ 644,044	$ 0	54,700
National MedTrans
Business Acquisition [Line Items]
Cash purchase of common stock	$ 80,000
Transaction costs	774
Cash acquired	(3,109)
Purchase price	$ 77,665
Circulation
Business Acquisition [Line Items]
Cash purchase of common stock		$ 45,123
Transaction costs					$ 1,700
ModivCare’s acquisition date fair value equity interest in Circulation		9,577
Purchase price		$ 54,700