Schedule of Maturities of Lease Liabilities (Detail) $ in Millions	Jun. 30, 2019 USD ($)
OPERATING LEASES
Remainder of 2019	$ 9.4
2020	13.7
2021	9.5
2022	6.3
2023	4.2
Thereafter	3.3
Total lease payments	46.4
Less: interest	(3.2)
Total lease liabilities	43.2
FINANCE LEASES
Remainder of 2019	0.5
2020	0.7
2021	0.4
2022	0.1
Total lease payments	1.7
Less: interest	(0.1)
Total lease liabilities	$ 1.6