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Loans - Loan Portfolio Composition Including Carrying Value by Segment of Loans Accounted for under ASC Topic 310-30 (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Loans [Line Items]
Fees and cost related to loans	$ 36,300	$ 38,800
Total Loans	$ 7,478,438	$ 7,220,469
% of total	100.00%	100.00%
Commercial Portfolio Segment [Member]
Loans [Line Items]
Total Loans	$ 4,349,012	$ 4,251,780
% of total	58.10%	58.90%
Commercial Real Estate Portfolio Segment [Member]
Loans [Line Items]
Total Loans	$ 1,814,059	$ 1,696,050
% of total	24.30%	23.50%
Residential Portfolio Segment [Member]
Loans [Line Items]
Total Loans	$ 1,295,991	$ 1,251,281
% of total	17.30%	17.30%
Consumer Loan [Member]
Loans [Line Items]
Total Loans	$ 19,376	$ 21,358
% of total	0.30%	0.30%

X

- Definition

The percent of financing receivable, excluding accrued interest.

+ References

No definition available.

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- Definition

Loans [Line Items]

+ References

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X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

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X

- Definition

Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481598/310-20-45-1

Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-SubTopic 20
-Topic 310
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481569/310-20-50-3

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