Fair Value - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of securities held	$ 1,373,812		$ 1,373,812		$ 1,596,832
Significant Unobservable  Inputs (Level 3) | Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of securities held	1,085		1,085		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	122	$ 59	210	$ 30
Obligations of State and Political Subdivisions | Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of securities held	575,240		575,240		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	76		76		75
MBS/CMO | Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of securities held	567,764		567,764		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	1,009		1,009		$ 984
Losses from other changes in fair value included in other comprehensive income	$ 18	$ 3	$ 26	$ 14