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Fair Value Measurements - Summary of Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | $ 1,862,270 | $ 1,618,273
US Government-sponsored Enterprises Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 276,040 | 296,446
US States and Political Subdivisions Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 409,197 | 432,171
Residential Mortgage-Backed Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 1,027,394 | 700,381
Corporate Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 128,893 | 181,701
US Treasury Bill Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 20,746 | 7,574
Recurring basis | Estimate of Fair Value Measurement [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 1,862,270 | 1,618,273
Other Investments | 2,983 | 2,941
Derivative Asset | 15,144 | 17,789
Total assets | 1,880,397 | 1,639,003
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Derivative Liability | 18,692 | 16,184
Liabilities, Fair Value Disclosure | 18,692 | 16,184
Recurring basis | US Government-sponsored Enterprises Debt Securities [Member] | Estimate of Fair Value Measurement [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 276,040 | 296,446
Recurring basis | US States and Political Subdivisions Debt Securities [Member] | Estimate of Fair Value Measurement [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 409,197 | 432,171
Recurring basis | Residential Mortgage-Backed Securities [Member] | Estimate of Fair Value Measurement [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 1,027,394 | 700,381
Recurring basis | Corporate Debt Securities [Member] | Estimate of Fair Value Measurement [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 20,746 | 181,701
Recurring basis | US Treasury Bill Securities [Member] | Estimate of Fair Value Measurement [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 128,893 | 7,574
Recurring basis | Fair Value, Inputs, Level 1 [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Other Investments | 0 | 0
Derivative Asset | 0 | 0
Total assets | 0 | 0
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Derivative Liability | 0 | 0
Liabilities, Fair Value Disclosure | 0 | 0
Recurring basis | Fair Value, Inputs, Level 1 [Member] | US Government-sponsored Enterprises Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Recurring basis | Fair Value, Inputs, Level 1 [Member] | US States and Political Subdivisions Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Recurring basis | Fair Value, Inputs, Level 1 [Member] | Residential Mortgage-Backed Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Recurring basis | Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Recurring basis | Fair Value, Inputs, Level 1 [Member] | US Treasury Bill Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Recurring basis | Fair Value, Inputs, Level 2 [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 1,862,270 | 1,618,273
Other Investments | 2,983 | 2,941
Derivative Asset | 15,144 | 17,789
Total assets | 1,880,397 | 1,639,003
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Derivative Liability | 18,692 | 16,184
Liabilities, Fair Value Disclosure | 18,692 | 16,184
Recurring basis | Fair Value, Inputs, Level 2 [Member] | US Government-sponsored Enterprises Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 276,040 | 296,446
Recurring basis | Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 409,197 | 432,171
Recurring basis | Fair Value, Inputs, Level 2 [Member] | Residential Mortgage-Backed Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 1,027,394 | 700,381
Recurring basis | Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 20,746 | 181,701
Recurring basis | Fair Value, Inputs, Level 2 [Member] | US Treasury Bill Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 128,893 | 7,574
Recurring basis | Fair Value, Inputs, Level 3 [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Other Investments | 0 | 0
Derivative Asset | 0 | 0
Total assets | 0 | 0
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Derivative Liability | 0 | 0
Liabilities, Fair Value Disclosure | 0 | 0
Recurring basis | Fair Value, Inputs, Level 3 [Member] | US Government-sponsored Enterprises Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Recurring basis | Fair Value, Inputs, Level 3 [Member] | US States and Political Subdivisions Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Recurring basis | Fair Value, Inputs, Level 3 [Member] | Residential Mortgage-Backed Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Recurring basis | Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 | 0
Recurring basis | Fair Value, Inputs, Level 3 [Member] | US Treasury Bill Securities [Member] |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | $ 0 | $ 0

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