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Retirement Benefit Plans - Summary of Benefits Expected to be Paid Out (Detail)
$ in Millions
Dec. 31, 2021
USD ($)
United States  
Schedule of Expected Future Pension Benefit Payment [Line Items]  
2022 $ 24.6
2023 25.4
2024 25.7
2025 26.3
2026 27.0
2027-2031 133.1
Foreign [Member]  
Schedule of Expected Future Pension Benefit Payment [Line Items]  
2022 32.8
2023 34.8
2024 33.6
2025 35.0
2026 34.7
2027-2031 $ 175.7