Debt - Schedule of Long Term Debt (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Finance lease obligations	$ 82.4	$ 71.2
Total long-term debt before discount	2,911.0	2,740.1
Less: unamortized debt issuance costs and discount on debt	(23.3)	(26.3)
Total long-term debt	2,887.7	2,713.8
Less: current maturities	(26.9)	(25.0)
Total long-term debt, excluding current maturities	2,860.8	2,688.8
Term B-3 Loan Due Twenty Twenty Four
Debt Instrument [Line Items]
Aggregate principal amount	$ 1,264.1	$ 1,438.0
Variable interest rate	3.70%	4.05%
Term B-5 Loan Due Twenty Twenty Six
Debt Instrument [Line Items]
Aggregate principal amount	$ 399.0	$ 400.0
Variable interest rate	3.45%	3.80%
North American ABL Due Twenty Twenty Four
Debt Instrument [Line Items]
Aggregate principal amount	$ 478.4	$ 200.0
Variable interest rate	2.00%	5.25%
Canadian ABL Facility Due Twenty Twenty Two
Debt Instrument [Line Items]
Aggregate principal amount	$ 120.9	$ 130.9
Variable interest rate	3.33%	4.31%
European ABL Facility Due Twenty Twenty Three Variable interest Rate of One Point Seven Five Percent
Debt Instrument [Line Items]
Aggregate principal amount	$ 66.2	$ 0.0
Variable interest rate	1.75%
Unsecured Notes Due Twenty Twenty Seven
Debt Instrument [Line Items]
Aggregate principal amount	$ 500.0	$ 500.0
Fixed interest rate	5.13%	5.13%