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Debt - Future Maturities Of Debt (Detail)
$ in Millions
Dec. 31, 2020
USD ($)
Long Term Debt Maturities  
2021 $ 61.1
2022 84.8
2023 80.5
2024 584.2
2026 and thereafter 721.3
Total $ 1,531.9 [1]
[1] Excludes unamortized debt issuance costs of $9.6 million and $19.2 million of bond discount which do not represent contractual commitments with a fixed amount or maturity date.