Significant Accounting Policies - Property and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Significant Accounting Policies
Capitalized software	$ 3.9	$ 3.5
Capitalized costs placed into service	$ 0.0	$ 0.7
Leasehold Improvements (Cycle: Lease Term) | Minimum
Significant Accounting Policies
Estimated useful lives (in years)	1 year
Leasehold Improvements (Cycle: Lease Term) | Maximum
Significant Accounting Policies
Estimated useful lives (in years)	10 years
Furniture & fixtures
Significant Accounting Policies
Estimated useful lives (in years)	7 years
Vehicles
Significant Accounting Policies
Estimated useful lives (in years)	5 years
Computer equipment & software
Significant Accounting Policies
Estimated useful lives (in years)	3 years
Medical equipment
Significant Accounting Policies
Estimated useful lives (in years)	7 years
Software
Significant Accounting Policies
Estimated useful lives (in years)	3 years