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Retirement Plans - Expected Benefit Payments Required For Domestic Retirement Plan (Detail) - United States
$ in Thousands
Dec. 31, 2019
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2020 $ 3,901
2021 3,734
2022 3,584
2023 3,436
2024 3,279
2025-2029 $ 14,045