v3.25.4
Investments - Fair Value and Amortized Cost of Debt Securities by Contractual Maturity (Detail) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]    
Available-for-Sale, Amortized Cost, Within one year $ 43,009  
Available-for-Sale, Amortized Cost, One to five years 43,813  
Available-for-Sale, Amortized Cost, Five to ten years 80,723  
Available-for-Sale, Amortized Cost, After ten years 6,458  
Available-for-Sale, Amortized Cost, SBA loan pools 80,199  
Available-for-Sale, Amortized Cost, Mortgage-backed securities 768,268  
Available-for-Sale, Amortized Cost 1,022,470 $ 1,079,252
Available-for-Sale, Fair Value, Within one year 43,093  
Available-for-Sale, Fair Value, One to five years 44,357  
Available-for-Sale, Fair Value, Five to ten years 80,168  
Available-for-Sale, Fair Value, After ten years 6,274  
Available-for-Sale, Fair Value, SBA loan pools 80,205  
Available-for-Sale, Fair Value, Mortgage-backed securities 776,471  
Available-for-Sale, Fair Value, Total debt securities 1,030,568 1,004,455
Held-to-Maturity, Amortized Cost, Five to ten years 170  
Held-to-Maturity, Amortized Cost, After ten years 1,111  
Held-to-Maturity, Amortized Cost, Mortgage-backed securities 3,967  
Held-to-Maturity, Amortized Cost 5,248 5,217
Held-to-Maturity, Fair Value, Five to ten years 170  
Held-to-Maturity, Fair Value, After ten years 1,141  
Held-to-Maturity, Fair Value, Mortgage-backed securities 4,098  
Held-to-Maturity, Fair Value, Total debt securities $ 5,409 $ 5,214