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Loans Modified in Trouble Debt Restructurings (Details) - Entity Loan Modification Program - Payment Deferral $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($) contract	Sep. 30, 2018 USD ($) contract	Sep. 30, 2019 USD ($) contract	Sep. 30, 2018 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | contract	0	1	5	5
Pre-Modification Outstanding Recorded Investment	$ 0	$ 16	$ 47	$ 44
Post-Modification Outstanding Recorded Investment	$ 0	$ 16	$ 47	$ 44
Subsequent Default, Number of Contracts | contract	0	0	0	0
Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | contract	0	0	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Subsequent Default, Number of Contracts | contract	0	0	0	0
Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial Real Estate Portfolio Segment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | contract	0	0	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Subsequent Default, Number of Contracts | contract	0	0	0	0
Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Consumer Loans Financing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | contract	0	1	5	5
Pre-Modification Outstanding Recorded Investment	$ 0	$ 16	$ 47	$ 44
Post-Modification Outstanding Recorded Investment	$ 0	$ 16	$ 47	$ 44
Subsequent Default, Number of Contracts | contract	0	0	0	0
Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | contract	0	0	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Subsequent Default, Number of Contracts | contract	0	0	0	0
Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0

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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

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

+ 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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