Securities - Unrealized Losses (Details) $ in Thousands	Sep. 30, 2022 USD ($) Securities	Dec. 31, 2021 USD ($) Securities
Less than 12 Months
Fair Value	$ 531,613	$ 161,024
Unrealized Losses	$ 72,759	$ 2,546
Number of Securities \| Securities	409	57
12 Months or More
Fair Value	$ 94,345	$ 1,310
Unrealized Losses	$ 35,775	$ 5
Number of Securities \| Securities	54	4
Total
Fair Value	$ 625,958	$ 162,334
Unrealized Losses	$ 108,534	$ 2,551
Number of Securities \| Securities	463	61
Mortgage-backed - GSE residential
Less than 12 Months
Fair Value	$ 104,743	$ 87,306
Unrealized Losses	$ 16,106	$ 1,774
Number of Securities \| Securities	43	16
12 Months or More
Fair Value	$ 45,783	$ 0
Unrealized Losses	$ 11,655	$ 0
Number of Securities \| Securities	14	0
Total
Fair Value	$ 150,526	$ 87,306
Unrealized Losses	$ 27,761	$ 1,774
Number of Securities \| Securities	57	16
Collateralized mortgage obligations - GSE residential
Less than 12 Months
Fair Value	$ 11,430	$ 803
Unrealized Losses	$ 740	$ 10
Number of Securities \| Securities	18	2
12 Months or More
Fair Value	$ 307	$ 0
Unrealized Losses	$ 12	$ 0
Number of Securities \| Securities	1	0
Total
Fair Value	$ 11,737	$ 803
Unrealized Losses	$ 752	$ 10
Number of Securities \| Securities	19	2
State and political subdivisions
Less than 12 Months
Fair Value	$ 410,905	$ 72,915
Unrealized Losses	$ 55,588	$ 762
Number of Securities \| Securities	344	39
12 Months or More
Fair Value	$ 48,255	$ 1,310
Unrealized Losses	$ 24,108	$ 5
Number of Securities \| Securities	39	4
Total
Fair Value	$ 459,160	$ 74,225
Unrealized Losses	$ 79,696	$ 767
Number of Securities \| Securities	383	43
Corporate bonds
Less than 12 Months
Fair Value	$ 4,535	$ 0
Unrealized Losses	$ 325	$ 0
Number of Securities \| Securities	4	0
12 Months or More
Fair Value	$ 0	$ 0
Unrealized Losses	$ 0	$ 0
Number of Securities \| Securities	0	0
Total
Fair Value	$ 4,535	$ 0
Unrealized Losses	$ 325	$ 0
Number of Securities \| Securities	4	0

Available For Sale Securities, Less Than Twelve Months [Abstract]

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Available For Sale Securities, Twelve Months Or Longer [Abstract]

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without an allowance for credit loss. Includes beneficial interest in securitized financial asset.

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