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Goodwill and Other Intangible Assets - Summary of Amortizable Intangible Assets (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]    
Balance of intangible assets, Gross CDI Carrying Amount, Beginning of period $ 93,297 $ 93,297
Additions due to acquisitions 3,914  
Balance of intangible assets, Gross CDI Carrying Amount, End of period 97,211 93,297
Estimated Amortization Expense:    
2023 6,452  
2024 5,324  
2025 4,193  
2026 2,822  
2027 1,397  
Thereafter 1,554  
Total 21,742 25,394
Balance of intangible assets, Accumulated Amortization, Beginning of period (67,903) (59,663)
Amortization (7,567) (8,240)
Balance of intangible assets, Accumulated Amortization, End of period (75,470) (67,903)
FiniteLived Intangible Assets Amortization (7,567) (8,240)
Balance of intangible assets, Net CDI Amount, Beginning of period 25,394 33,634
Amortization (3,652) (8,240)
Balance of intangible assets, Net CDI Amount, End of period $ 21,742 $ 25,394