Other Intangible Assets, Net and Goodwill - Schedule of Intangible Assets, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (318.1)	$ (286.9)
Impairment			$ (13.0)
Net Carrying Value	230.7
Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract]
Total Intangible Assets, Gross Carrying Amount	551.1	544.0
Total Intangible Assets Impairment	0.0	0.0	(13.0)
Total Intangible Assets, Net	233.0	257.1
Amortization of Intangible Assets	31.2	39.3	$ 41.6
Operating permits
Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract]
Gross Carrying Value	2.3	2.3
Impairment	0.0	0.0
Net Carrying Value	2.3	2.3
Noncompete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	6.4	5.9
Accumulated Amortization	(4.4)	(3.4)
Impairment	0.0	0.0
Net Carrying Value	$ 2.0	$ 2.5
Weighted Average Remaining Life (Years)	3 years 7 months 6 days	3 years 6 months
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 15.5	$ 15.5
Accumulated Amortization	(8.4)	(7.6)
Impairment	0.0	0.0
Net Carrying Value	$ 7.1	$ 7.9
Weighted Average Remaining Life (Years)	11 years 3 months 18 days	12 years 2 months 12 days
Customer lists and contracts
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 526.5	$ 519.9
Accumulated Amortization	(305.1)	(275.7)
Impairment	0.0	0.0
Net Carrying Value	$ 221.4	$ 244.2
Weighted Average Remaining Life (Years)	13 years 4 months 24 days	13 years 4 months 24 days
Above/below market leases
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 0.4	$ 0.4
Accumulated Amortization	(0.2)	(0.2)
Impairment	0.0	0.0
Net Carrying Value	$ 0.2	$ 0.2
Weighted Average Remaining Life (Years)	6 years 7 months 6 days	7 years 7 months 6 days