Loans and Allowance for Credit Losses - Financing Receivable, Nonaccrual (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans With ACL	$ 35,995	$ 26,244
Non-Accrual Loans Without ACL	16,562	12,360
Total Non-Accrual Loans	52,557	38,604
Commercial Portfolio Segment \| Commercial and industrial
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans With ACL	4	3,270
Non-Accrual Loans Without ACL	464	10,707
Total Non-Accrual Loans	468	13,977
Commercial Portfolio Segment \| Commercial real estate
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans With ACL	13,969	0
Non-Accrual Loans Without ACL	16,087	0
Total Non-Accrual Loans	30,056	0
Commercial Portfolio Segment \| Commercial construction
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans With ACL	0	0
Non-Accrual Loans Without ACL	0	0
Total Non-Accrual Loans	0	0
Commercial Portfolio Segment \| Business banking
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans With ACL	4,572	5,844
Non-Accrual Loans Without ACL	11	1,653
Total Non-Accrual Loans	4,583	7,497
Residential Portfolio Segment \| Residential real estate
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans With ACL	8,725	9,750
Non-Accrual Loans Without ACL	0	0
Total Non-Accrual Loans	8,725	9,750
Consumer Portfolio Segment \| Consumer home equity
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans With ACL	8,532	7,054
Non-Accrual Loans Without ACL	0	0
Total Non-Accrual Loans	8,532	7,054
Consumer Portfolio Segment \| Other Consumer
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans With ACL	193	326
Non-Accrual Loans Without ACL	0	0
Total Non-Accrual Loans	$ 193	$ 326

Financing Receivable, Nonaccrual, With Allowance

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- Definition

Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. 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
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Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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