Loans - Summary of troubled debt restructuring (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($) contract
Troubled debt restructuring:
Number of Contracts \| contract	7
Pre- Modification Outstanding Recorded Investment	$ 18,646
Post-Modification Outstanding Recorded Investment	$ 20,146
Commercial
Troubled debt restructuring:
Number of Contracts \| contract	7
Pre- Modification Outstanding Recorded Investment	$ 18,646
Post-Modification Outstanding Recorded Investment	$ 20,146

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

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Amount, before troubled debt restructuring, of financing receivable to be modified.

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