Revenue Recognition - Disaggregation of Revenue (NET Services) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total service revenue, net	$ 662,306	$ 574,475
NEMT
Disaggregation of Revenue [Line Items]
Total service revenue, net	469,463	400,920
NEMT | Capitated contracts
Disaggregation of Revenue [Line Items]
Total service revenue, net	404,689	335,718
NEMT | FFS contracts
Disaggregation of Revenue [Line Items]
Total service revenue, net	64,774	65,202
Personal Care
Disaggregation of Revenue [Line Items]
Total service revenue, net	174,131	159,698
Personal Care | FFS contracts
Disaggregation of Revenue [Line Items]
Total service revenue, net	174,131	159,698
Personal Care | RPM PMPM Contracts
Disaggregation of Revenue [Line Items]
Total service revenue, net	$ 18,712	$ 13,857