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Financing - Scheduled Maturities of Long- Term Debt (Detail)
$ in Millions
Sep. 30, 2021
USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]  
Remainder of 2021 $ 8.0
2022 32.0
2023 32.0
2024 32.0
2025 1,332.0
Thereafter $ 8,200.0