Loans - Activity in the Allowance For Credit Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Allowance for credit losses
Balance at the beginning of the period	$ 27,556	$ 36,153	$ 29,404	$ 45,464
Provision for (recovery of) credit losses	(2,596)	(1,887)	(4,884)	(3,917)
Charge offs				(6,478)
Recoveries	10	1	450	469
Total ending balance	24,970	34,267	24,970	34,267
ASU 2016-13
Allowance for credit losses
Total ending balance		(1,651)		(1,651)
ASU 2022-02
Allowance for credit losses
Total ending balance		380		380
Residential Real Estate
Allowance for credit losses
Balance at the beginning of the period	12,971	16,909	14,322	27,951
Provision for (recovery of) credit losses	(710)	1,307	(2,500)	(4,477)
Charge offs				(6,478)
Recoveries			439	366
Total ending balance	12,261	18,216	12,261	18,216
Residential Real Estate \| ASU 2016-13
Allowance for credit losses
Total ending balance		865		865
Residential Real Estate \| ASU 2022-02
Allowance for credit losses
Total ending balance		(11)		(11)
Commercial Real Estate
Allowance for credit losses
Balance at the beginning of the period	13,605	16,728	13,550	11,694
Provision for (recovery of) credit losses	(2,109)	(2,482)	(2,054)	1,301
Recoveries				100
Total ending balance	11,496	14,246	11,496	14,246
Commercial Real Estate \| ASU 2016-13
Allowance for credit losses
Total ending balance		1,151		1,151
Construction loans
Allowance for credit losses
Balance at the beginning of the period	809	2,475	1,386	5,781
Provision for (recovery of) credit losses	52	(752)	(526)	(818)
Recoveries	10	1	11	3
Total ending balance	871	1,724	871	1,724
Construction loans \| ASU 2016-13
Allowance for credit losses
Total ending balance		(3,633)		(3,633)
Construction loans \| ASU 2022-02
Allowance for credit losses
Total ending balance		391		391
Commercial and industrial
Allowance for credit losses
Balance at the beginning of the period	171	41	146	38
Provision for (recovery of) credit losses	171	40	196	77
Total ending balance	$ 342	81	$ 342	81
Commercial and industrial \| ASU 2016-13
Allowance for credit losses
Total ending balance		$ (34)		$ (34)

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

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- Definition

Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount, excluding accrued interest, of decrease (increase) in allowance for credit loss on financing receivable from writeoff (recovery). Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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