v3.26.1
Fair Value - Carrying Amounts and Estimated Fair Values of Company's Financial Instruments (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financial Assets:    
Interest Bearing Time Deposits with Banks $ 500 $ 500
Financial Liabilities:    
Demand, Savings, and Money Market Deposits (6,995,763) (6,989,742)
Time Deposits (1,351,650) (1,289,537)
Carrying Value    
Financial Assets:    
Cash and Short-term Investments 94,158 118,382
Interest Bearing Time Deposits with Banks 500 500
Loans, Net 5,818,960 5,755,551
Accrued Interest Receivable 38,046 38,997
Financial Liabilities:    
Demand, Savings, and Money Market Deposits (5,644,113) (5,700,205)
Time Deposits (1,351,650) (1,289,537)
Short-term Borrowings (30,122) (43,852)
Long-term Debt (138,915) (138,831)
Accrued Interest Payable (7,831) (10,243)
Estimate of Fair Value Measurement    
Financial Assets:    
Cash and Short-term Investments 94,158 118,382
Interest Bearing Time Deposits with Banks 500 500
Loans, Net 5,776,218 5,702,933
Accrued Interest Receivable 38,046 38,997
Financial Liabilities:    
Demand, Savings, and Money Market Deposits (5,644,113) (5,700,205)
Time Deposits (1,342,995) (1,286,002)
Short-term Borrowings (30,122) (43,852)
Long-term Debt (136,999) (137,018)
Accrued Interest Payable (7,831) (10,243)
Estimate of Fair Value Measurement | Level 1    
Financial Assets:    
Cash and Short-term Investments 79,646 71,428
Interest Bearing Time Deposits with Banks 0 0
Loans, Net 0 0
Accrued Interest Receivable 0 0
Financial Liabilities:    
Demand, Savings, and Money Market Deposits (5,644,113) (5,700,205)
Time Deposits 0 0
Short-term Borrowings 0 0
Long-term Debt 0 0
Accrued Interest Payable 0 0
Estimate of Fair Value Measurement | Level 2    
Financial Assets:    
Cash and Short-term Investments 14,512 46,954
Interest Bearing Time Deposits with Banks 500 500
Loans, Net 0 0
Accrued Interest Receivable 10,122 9,496
Financial Liabilities:    
Demand, Savings, and Money Market Deposits 0 0
Time Deposits (1,342,995) (1,286,002)
Short-term Borrowings (30,122) (43,852)
Long-term Debt (101,937) (102,892)
Accrued Interest Payable (7,533) (9,925)
Estimate of Fair Value Measurement | Level 3    
Financial Assets:    
Cash and Short-term Investments 0 0
Interest Bearing Time Deposits with Banks 0 0
Loans, Net 5,776,218 5,702,933
Accrued Interest Receivable 27,924 29,501
Financial Liabilities:    
Demand, Savings, and Money Market Deposits 0 0
Time Deposits 0 0
Short-term Borrowings 0 0
Long-term Debt (35,062) (34,126)
Accrued Interest Payable $ (298) $ (318)