Other Intangible Assets, net - Components of Intangible Assets, Net (Details) - USD ($) $ in Millions		9 Months Ended
	Apr. 18, 2022	Sep. 30, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)		7 years 2 months 12 days
Intangible Assets, Gross		$ 110.6	$ 110.1
Accumulated Amortization		(61.4)	(55.7)
Intangible Assets, Net		$ 49.2	54.4
Covenant Not to Compete
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)	5 years	2 years 3 months 18 days
Intangible Assets, Gross		$ 1.8	2.9
Accumulated Amortization		(1.2)	(2.3)
Intangible Assets, Net		$ 0.6	0.6
Trade Names and Trademarks
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)		1 year 2 months 12 days
Intangible Assets, Gross		$ 0.9	0.9
Accumulated Amortization		(0.6)	(0.5)
Intangible Assets, Net		$ 0.3	0.4
Proprietary Know How
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)		2 years 2 months 12 days
Intangible Assets, Gross		$ 3.8	3.8
Accumulated Amortization		(1.9)	(1.3)
Intangible Assets, Net		$ 1.9	2.5
Management Contract Rights
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)		6 years 7 months 6 days
Intangible Assets, Gross		$ 81.0	81.0
Accumulated Amortization		(51.7)	(47.7)
Intangible Assets, Net		$ 29.3	33.3
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)	5 years	9 years
Intangible Assets, Gross		$ 23.1	21.5
Accumulated Amortization		(6.0)	(3.9)
Intangible Assets, Net		$ 17.1	$ 17.6