Revenue Recognition - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
NEMT
Disaggregation of Revenue [Line Items]
Performance obligation satisfied in previous period, increase (decrease)	$ 6.6	$ (3.5)	$ 11.3	$ (3.1)
NEMT | One US State | Sales Revenue, Net | Government Contracts Concentration Risk | Continuing Operations
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	11.90%	11.20%	11.50%	11.10%
PCS | One US State | Sales Revenue, Net | Government Contracts Concentration Risk | Continuing Operations
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	12.70%	11.60%	12.10%	11.20%
RPM | One US State | Sales Revenue, Net | Government Contracts Concentration Risk | Continuing Operations
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	17.10%	17.60%	18.70%	16.40%