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v3.23.3

Derivatives - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Derivative [Line Items] |  |  |  |  |
Termination value of derivatives in net liability position | $ 0.0 |  | $ 0.0 |  |
Interest Rate Lock Commitments Notional Amount Member |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount | 27.9 |  | 27.9 |  | $ 35.5
Forward Contract Notional Member |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount | 34.9 |  | 34.9 |  | 45.0
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount | 436.0 |  | 436.0 |  | 383.0
Derivative fee income from non-designated hedges | 0.4 | $ 0.3 | 0.7 | $ 0.5 |
Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Hedged Loans |  |  | 462.5 |  | 482.7
Cumulative fair value hedge adjustment |  |  | (8.4) |  | 29.7
Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount | 337.4 |  | 337.4 |  | 340.1
Cumulative fair value hedge adjustment |  |  | 42.5 |  | $ 33.4
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount | $ 200.0 |  | 200.0 |  |
Reclassification of accumulated other comprehensive income during the next 12 months |  |  | $ 2.0 |  |

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- Definition The aggregate fair value of assets needed to immediately settle the derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4H + Details
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- Definition The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480870/815-30-50-6 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480237/815-40-50-5 + Details
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