GOODWILL AND OTHER INTANGIBLE ASSETS - Carrying Values of Other Intangible Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	$ 2,007.3	$ 2,137.6
Accumulated Amortization	584.9	499.9
Net Value	1,422.4	1,637.7	$ 1,791.5
Operating permits
Intangible Assets By Major Class [Line Items]
Carrying Amount, Indefinite Lived Intangible Assets	211.1	212.5
Tradenames
Intangible Assets By Major Class [Line Items]
Carrying Amount, Indefinite Lived Intangible Assets	314.2	312.3
Customer relationships
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	1,460.8	1,591.5
Accumulated Amortization	575.8	492.0
Net Value	885.0	1,099.5
Covenants not-to-compete
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	4.9	5.1
Accumulated Amortization	3.8	3.2
Net Value	1.1	1.9
Operating permits
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	4.1
Accumulated Amortization	1.6
Net Value	2.5
Tradenames
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	3.6	3.9
Accumulated Amortization	1.1	1.2
Net Value	2.5	2.7
Other
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	8.6	12.3
Accumulated Amortization	2.6	3.5
Net Value	$ 6.0	$ 8.8