Annual report pursuant to Section 13 and 15(d)

Leases - Summary of Supplemental Cash Flow Information Related to Leases (Detail)

v3.20.4
Leases - Summary of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows for operating leases $ 50.3 $ 45.9
Operating cash flows for finance leases
Financing cash flows for finance leases 0.5 0.4
Right-of-use assets obtained in exchange for new lease liabilities:    
Operating leases 74.2 55.2
Finance leases $ 0.1 $ 0.6