Loans and Allowance for Credit Losses Troubled Debt Restructuring Modification (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($) loans	Mar. 31, 2019 USD ($) loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loans	17	20
Post-Modification Recorded Investment \| $	$ 1,703	$ 4,206
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loans	1	4
Post-Modification Recorded Investment \| $	$ 74	$ 2,460
Real-estate - commercial mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loans	1	0
Post-Modification Recorded Investment \| $	$ 392	$ 0
Real-estate - home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loans	8	12
Post-Modification Recorded Investment \| $	$ 577	$ 829
Real estate - residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loans	7	4
Post-Modification Recorded Investment \| $	$ 660	$ 917

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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.

+ References

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