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Leases - Future Minimum Lease Payments Under Operating and Financing Leases (Detail)
$ in Millions
Dec. 31, 2020
USD ($)
Operating and Finance Leases  
2021 $ 11.2
2022 11.3
2023 10.0
2024 8.6
2025 6.7
Thereafter 11.9
Total lease payments 59.7 [1]
Less: Interest 6.8
Total $ 52.9
[1] Future minimum lease payments have not been reduced by minimum sublease rentals of $6.5 million due in the future under noncancellable subleases.