Leases - Schedule of Maturity Analysis of Lease Liabilities (Detail) $ in Millions	Jun. 30, 2019 USD ($)
Operating Leases
2019	$ 10.7	[1]
2020	20.3	[1]
2021	18.1	[1]
2022	14.4	[1]
2023	11.2	[1]
After 2023	24.6	[1]
Total lease payments	99.3	[1]
Less: Interest	(10.3)	[1],[2]
Present value of lease liabilities	89.0	[1],[3]
Finance Leases
2019	8.1
2020	13.5
2021	8.4
2022	4.8
2023	2.8
After 2023	2.3
Total lease payments	39.9
Less: Interest	(3.1)	[2]
Present value of lease liabilities	$ 36.8	[3]

[1] There were no operating leases with options to extend lease terms that are reasonably certain of being exercised and the operating lease payments exclude $0.3 million of legally binding minimum lease payments for leases signed but not yet commenced.

[2] Calculated using the discount rate for each lease.

[3] Includes the current portion of $17.8 million for operating leases and $13.5 million for finance leases.