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Fair Value - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of securities held	$ 1,547,994		$ 1,547,994		$ 1,596,832
Significant Unobservable  Inputs (Level 3) | Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of securities held	1,107		1,107		1,059
Loans Held-for-sale
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
(Losses)/gains from changes in fair value included in earnings	(126)	$ (44)	84	$ (14)
Obligations of State and Political Subdivisions | Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of securities held	478,401		478,401		768,875
Obligations of State and Political Subdivisions | Significant Unobservable  Inputs (Level 3) | Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of securities held	77		77		75
MBS/CMO | Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of securities held	725,072		725,072		645,040
MBS/CMO | Significant Unobservable  Inputs (Level 3) | Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of securities held	1,030		1,030		$ 984
Losses from other changes in fair value included in other comprehensive income	$ 22	$ 22	$ 48	$ 36

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- Definition

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss), Other

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- Definition

Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 101
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-101

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-Topic 820
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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

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-Topic 820
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