Schedule of Maturities of Lease Liabilities (Detail) $ in Millions	Mar. 31, 2019 USD ($)
OPERATING LEASES
Remainder of 2019	$ 11.5
2020	12.8
2021	8.8
2022	5.9
2023	4.0
Thereafter	3.0
Total lease payments	46.0
Less: interest	(2.2)
Total lease liabilities	43.8
FINANCE LEASES
Remainder of 2019	0.7
2020	0.7
2021	0.3
2022	0.1
2023	0.1
Total lease payments	1.9
Less: interest	(0.2)
Total lease liabilities	$ 1.7