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Derivative Financial Instruments - Schedule of Derivative Instruments in Statement of Financial Position Related to Cumulative Basis Adjustment for Fair Value Hedges (Details) - Designated as Hedging Instruments - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Investment Securities, Available-for-Sale |  |  |
Fair value hedges [line items] |  |  |
Carrying Amount of the Hedged Assets | [1] | $ 1,622,548 | $ 1,320,260
Cummulative Amount of Fair Value Hedging Adjustment Included In the Carrying Amount of the Hedged Assets | [1] | 22,548 | 20,260
Loans and Leases |  |  |
Fair value hedges [line items] |  |  |
Carrying Amount of the Hedged Assets | [2] | 1,517,866 | 1,728,386
Cummulative Amount of Fair Value Hedging Adjustment Included In the Carrying Amount of the Hedged Assets | [2] | $ 17,866 | $ 28,386
[1] | These amounts were included in the fair value o f closed portfolios of investment securities, AFS used to designate hedging relationships in which the hedged item is the stated amount of assets in the closed portfolios anticipated to be outstanding for the designated hedge period. As of September 30, 2024 and December 31, 2023, the fair value of the closed portfolios used in these hedging relationships was $1.7 billion and $1.8 billion, respectively.
[2] | These amounts were included in the amortized cost basis of closed portfolios of loans used to designate hedging relationships in which the hedged item is the stated amount of assets in the closed portfolios anticipated to be outstanding for the designated hedge period. As of September 30, 2024 and December 31, 2023 the amortized cost basis of the closed portfolios used in these hedging relationships was $3.0 billion and $3.2 billion, respectively.

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- Definition Amount of asset hedged in fair value hedging relationship. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 181 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-181 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EE -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EE + Details
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- Definition Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 181 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-181 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EE -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EE + Details
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