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Fair Value - Carrying Amounts and Estimated Fair Values of Company's Financial Instruments (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financial Assets: |  |
Interest Bearing Time Deposits with Banks | $ 500 | $ 500
Financial Liabilities: |  |
Demand, Savings, and Money Market Deposits | (5,219,347) | (5,252,963)
Time Deposits | (836,955) | (767,042)
Carrying Value |  |
Financial Assets: |  |
Cash and Short-term Investments | 123,470 | 115,330
Interest Bearing Time Deposits with Banks | 500 | 500
Loans, Net | 3,919,462 | 3,918,184
Accrued Interest Receivable | 30,385 | 30,595
Financial Liabilities: |  |
Demand, Savings, and Money Market Deposits | (4,382,392) | (4,485,921)
Time Deposits | (836,955) | (767,042)
Short-term Borrowings | (63,764) | (65,968)
Long-term Debt | (128,046) | (127,969)
Accrued Interest Payable | (9,236) | (7,073)
Estimate of Fair Value Measurement |  |
Financial Assets: |  |
Cash and Short-term Investments | 123,470 | 115,330
Interest Bearing Time Deposits with Banks | 500 | 500
Loans, Net | 3,821,382 | 3,801,738
Accrued Interest Receivable | 30,385 | 30,595
Financial Liabilities: |  |
Demand, Savings, and Money Market Deposits | (4,382,392) | (4,485,921)
Time Deposits | (828,378) | (759,217)
Short-term Borrowings | (63,764) | (65,968)
Long-term Debt | (127,191) | (127,084)
Accrued Interest Payable | (9,236) | (7,073)
Estimate of Fair Value Measurement | Level 1 |  |
Financial Assets: |  |
Cash and Short-term Investments | 52,839 | 78,805
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 | (4,382,392) | (4,485,921)
Time Deposits | 0 | 0
Short-term Borrowings | (25,000) | (25,000)
Long-term Debt | 0 | 0
Accrued Interest Payable | 0 | 0
Estimate of Fair Value Measurement | Level 2 |  |
Financial Assets: |  |
Cash and Short-term Investments | 70,631 | 36,525
Interest Bearing Time Deposits with Banks | 500 | 500
Loans, Net | 0 | 0
Accrued Interest Receivable | 9,028 | 10,014
Financial Liabilities: |  |
Demand, Savings, and Money Market Deposits | 0 | 0
Time Deposits | (828,378) | (759,217)
Short-term Borrowings | (38,764) | (40,968)
Long-term Debt | (52,513) | (52,522)
Accrued Interest Payable | (8,768) | (6,701)
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 | 3,821,382 | 3,801,738
Accrued Interest Receivable | 21,357 | 20,581
Financial Liabilities: |  |
Demand, Savings, and Money Market Deposits | 0 | 0
Time Deposits | 0 | 0
Short-term Borrowings | 0 | 0
Long-term Debt | (74,678) | (74,562)
Accrued Interest Payable | $ (468) | $ (372)

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