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Employee Benefit Plans (Expected Future Benefit Payments Related to Defined Benefit Plans) (Detail)
$ in Thousands
Dec. 31, 2019
USD ($)
Retirement Benefits [Abstract]  
2020 $ 10,662
2021 10,968
2022 11,177
2023 11,423
2024 11,578
2025 through 2029 57,122
Total defined benefit plan expected future benefit payments $ 112,930