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Postretirement Benefit Plans - Estimated Future Benefit Payments (Detail)
$ in Thousands
Dec. 31, 2022
USD ($)
United States [Member]  
Pension Plans, Postretirement and Other Employee Benefits [Line Items]  
2023 $ 9,267
2024 9,575
2025 9,826
2026 10,003
2027 10,118
2028-2032 50,301
United Kingdom [Member]  
Pension Plans, Postretirement and Other Employee Benefits [Line Items]  
2023 531
2024 558
2025 583
2026 623
2027 647
2028-2032 $ 3,800