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Derivative Financial Instruments - Fair Value of Derivative Instruments on the Balance Sheet (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
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Derivatives, Fair Value [Line Items] |  |
Notional amounts | $ 765,314 | $ 780,152
Fair Values | 822 | 1,401
Interest Rate Swaps | Derivatives Not Designated as Hedging Instruments | Other Assets |  |
Derivatives, Fair Value [Line Items] |  |
Notional amounts | 367,272 | 363,498
Fair Values | 21,326 | 18,567
Interest Rate Swaps | Derivatives Not Designated as Hedging Instruments | Other Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Notional amounts | 360,457 | 356,683
Fair Values | (21,013) | (18,298)
Risk participation agreements included in other liabilities | Derivatives Not Designated as Hedging Instruments | Other Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Notional amounts | 20,000 | 20,000
Fair Values | 0 | (2)
Forward commitments to purchase forward-settling mortgage-backed securities included in other assets | Derivatives Not Designated as Hedging Instruments | Other Assets |  |
Derivatives, Fair Value [Line Items] |  |
Notional amounts | 0 | 9,000
Fair Values | 0 | 91
Forward commitments to purchase treasury notes in other assets | Derivatives Not Designated as Hedging Instruments | Other Assets |  |
Derivatives, Fair Value [Line Items] |  |
Notional amounts | 0 | 22,500
Fair Values | 0 | 822
Interest rate-lock commitments on residential mortgage loans included in other assets | Derivatives Not Designated as Hedging Instruments | Other Assets |  |
Derivatives, Fair Value [Line Items] |  |
Notional amounts | 17,585 | 8,471
Fair Values | 509 | 221
Cash Flow Hedging | Interest Rate Swaps | Derivatives Designated as Cash Flow Hedging Instruments | Other Assets |  |
Derivatives, Fair Value [Line Items] |  |
Notional amounts | 10,500 | 10,500
Fair Values | $ 882 | $ 786

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- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 5 -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480463/815-10-45-5 + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A + Details
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