Allowance for credit losses - T D R that subsequently defaulted (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022 USD ($) loans	Sep. 30, 2022 USD ($) loans
Financing Receivable, Modifications [Line Items]
Loan count \| loans	58	138
Recorded investment as of first default date \| $	$ 5,422	$ 14,169
Mortgages
Financing Receivable, Modifications [Line Items]
Loan count \| loans	35	73
Recorded investment as of first default date \| $	$ 3,500	$ 9,200
Commercial \| CRE non-owner occupied
Financing Receivable, Modifications [Line Items]
Loan count \| loans	1	1
Recorded investment as of first default date \| $	$ 560	$ 560
Commercial \| Commercial and Industrial
Financing Receivable, Modifications [Line Items]
Loan count \| loans	2	5
Recorded investment as of first default date \| $	$ 1,165	$ 3,661
Leasing
Financing Receivable, Modifications [Line Items]
Loan count \| loans	1	1
Recorded investment as of first default date \| $	$ 5	$ 5
Consumer \| Credit card
Financing Receivable, Modifications [Line Items]
Loan count \| loans	4	24
Recorded investment as of first default date \| $	$ 32	$ 185
Consumer \| Personal loans
Financing Receivable, Modifications [Line Items]
Loan count \| loans	15	34
Recorded investment as of first default date \| $	$ 160	$ 558

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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