Other Intangible Assets, net - Components of Intangible Assets, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)	7 years
Intangible Assets, Gross	$ 133.4	$ 133.2
Accumulated Amortization	(67.3)	(64.3)
Intangible Assets, Net	$ 66.1	68.9
Covenant Not to Compete
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)	3 years 3 months 18 days
Intangible Assets, Gross	$ 2.9	2.9
Accumulated Amortization	(1.6)	(1.4)
Intangible Assets, Net	$ 1.3	1.5
Trade Names and Trademarks
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)	11 years 7 months 6 days
Intangible Assets, Gross	$ 2.9	2.8
Accumulated Amortization	(0.8)	(0.7)
Intangible Assets, Net	$ 2.1	2.1
Proprietary Know How
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)	6 years 7 months 6 days
Intangible Assets, Gross	$ 21.8	21.7
Accumulated Amortization	(3.5)	(2.7)
Intangible Assets, Net	$ 18.3	19.0
Management Contract Rights
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)	6 years 1 month 6 days
Intangible Assets, Gross	$ 81.0	81.0
Accumulated Amortization	(54.2)	(52.9)
Intangible Assets, Net	$ 26.8	28.1
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)	8 years 4 months 24 days
Intangible Assets, Gross	$ 24.8	24.8
Accumulated Amortization	(7.2)	(6.6)
Intangible Assets, Net	$ 17.6	$ 18.2