Minimum days past due for TDR loans to be classified as non-performing.

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- Definition

The number of financing receivables related to short-term principal payment relief that have been modified during the period by troubled debt restructurings.

+ References

No definition available.

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- Definition

Represents the limit of loan above which loans are reviewed annually.

+ References

No definition available.

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- Definition

Represents the limit of loan where loans are processed through an expedited underwriting process.

+ References

No definition available.

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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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No definition available.

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- Definition

Fair value of acquired receivable from business combination, excluding certain loans and debt securities acquired in transfer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

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- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

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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 http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524

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- Definition

Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118939409&loc=d3e18794-111554

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Portfolio loans and allowance for loan losses - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) loan contract	Dec. 31, 2018 USD ($) item contract	Dec. 31, 2017 USD ($)
Distributions of portfolio loans
Gross interest income that would have been recorded if impaired loans had been current	$ 2,300	$ 1,700	$ 1,400
Performing loans classified as TDRs \| contract		0
Minimum days past due for TDR loans to be classified as non-performing	90 days
Balance of all acquired loans	$ 1,700,000	$ 1,200,000	$ 1,800,000
Commercial Loans
Distributions of portfolio loans
Performing loans classified as TDRs \| loan	1
Retail Real Estate
Distributions of portfolio loans
TDRs subsequently classified as non-performing and had payment defaults \| contract	1
Maximum \| Commercial Real Estate Loans
Distributions of portfolio loans
Limit where loans are processed through an expedited underwriting process	$ 1,000
Watch \| Commercial Loans
Distributions of portfolio loans
Limit above which loans are annually reviewed	1,000
Special Mention
Distributions of portfolio loans
Limit above which loans are annually reviewed	350
In compliance with modified terms \| Retail Real Estate
Distributions of portfolio loans
Number of retail real estate modifications \| item		1
Loans classified as a TDR	$ 300	$ 100