Other Intangible Assets, net - Components of Intangible Assets, Net (Details) - USD ($) $ in Millions		6 Months Ended
	Apr. 18, 2022	Jun. 30, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)		7 years 4 months 24 days
Intangible Assets, Gross		$ 110.6	$ 110.1
Accumulated Amortization		(59.3)	(55.7)
Intangible Assets, Net		$ 51.3	54.4
Covenant Not to Compete
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)	5 years	2 years 4 months 24 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 4 months 24 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 4 months 24 days
Intangible Assets, Gross		$ 3.8	3.8
Accumulated Amortization		(1.7)	(1.3)
Intangible Assets, Net		$ 2.1	2.5
Management Contract Rights
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)		6 years 9 months 18 days
Intangible Assets, Gross		$ 81.0	81.0
Accumulated Amortization		(50.3)	(47.7)
Intangible Assets, Net		$ 30.7	33.3
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Weighted Average Life (Years)	5 years	9 years 3 months 18 days
Intangible Assets, Gross		$ 23.1	21.5
Accumulated Amortization		(5.5)	(3.9)
Intangible Assets, Net		$ 17.6	$ 17.6