Leases - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Leases [Line Items]
Operating lease, renewal term	can extend the lease term from one to five years or more.
Weighted-average discount rate - finance leases	29.40%
Capital leases, future minimum payments due		$ 154.8
Capital leases, future minimum payments due, next twelve months		17.7
Capital leases future minimum payments due in second third years		33.6
Capital leases future minimum payments due in fourth fifth years		30.0
Capital leases, future minimum payments due thereafter		73.4
Operating leases, future minimum payments due		128.6
Operating leases, future minimum payments due, next twelve months		31.8
Operating leases future minimum payments due in second third years		45.0
Operating leases future minimum payments due in fourth fifth years		28.4
Operating leases, future minimum payments, due thereafter		23.5
Capital leased assets, gross		$ 89.4
Minimum [Member]
Disclosure of Leases [Line Items]
Operating lease, renewal period	1 year
Maximum [Member]
Disclosure of Leases [Line Items]
Operating lease, renewal period	5 years