Loans and Allowance for Loan Losses - Summary of Information Regarding Interest Income Recognized on Impaired Loans,by Portfolio (Details) $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($)
Average Recorded Investment
With no allowance recorded:	$ 34,637
With an allowance recorded:	35,673
Total	70,310
Total Interest Recognized
With no allowance recorded:	956
With an allowance recorded:	596
Total	1,552
Commercial and industrial \| Commercial Portfolio Segment
Average Recorded Investment
With no allowance recorded:	11,813
With an allowance recorded:	7,229
Total Interest Recognized
With no allowance recorded:	161
With an allowance recorded:	0
Commercial real estate \| Commercial Portfolio Segment
Average Recorded Investment
With no allowance recorded:	3,916
With an allowance recorded:	926
Total Interest Recognized
With no allowance recorded:	178
With an allowance recorded:	0
Business banking \| Commercial Portfolio Segment
Average Recorded Investment
With no allowance recorded:	4,352
With an allowance recorded:	13,027
Total Interest Recognized
With no allowance recorded:	99
With an allowance recorded:	57
Residential real estate \| Residential Portfolio Segment
Average Recorded Investment
With no allowance recorded:	12,506
With an allowance recorded:	12,322
Total Interest Recognized
With no allowance recorded:	456
With an allowance recorded:	474
Consumer home equity \| Consumer Portfolio Segment
Average Recorded Investment
With no allowance recorded:	2,027
With an allowance recorded:	2,106
Total Interest Recognized
With no allowance recorded:	62
With an allowance recorded:	65
Other Consumer \| Consumer Portfolio Segment
Average Recorded Investment
With no allowance recorded:	23
With an allowance recorded:	63
Total Interest Recognized
With no allowance recorded:	0
With an allowance recorded:	$ 0

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-15

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-17

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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-Subparagraph (c)(2)
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