Loans - Schedule Of Troubled Debt Restructurings Within The Previous 12 Months (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) loan	Sep. 30, 2017 USD ($) loan	Sep. 30, 2018 USD ($) loan	Sep. 30, 2017 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number | loan	18	5	52	16
Recorded Investment | $	$ 711	$ 1,952	$ 1,719	$ 11,200
Credit card & other
Financing Receivable, Modifications [Line Items]
Number | loan	13	2	39	5
Recorded Investment | $	$ 56	$ 12	$ 212	$ 30
Commercial Portfolio Segment
Financing Receivable, Modifications [Line Items]
Number | loan	1	1	2	4
Recorded Investment | $	$ 321	$ 1,763	$ 579	$ 9,770
Consumer real estate
Financing Receivable, Modifications [Line Items]
Number | loan	1	0	6	4
Recorded Investment | $	$ 40	$ 0	$ 229	$ 685
Permanent mortgage
Financing Receivable, Modifications [Line Items]
Number | loan	3	1	5	2
Recorded Investment | $	$ 294	$ 89	$ 699	$ 627
Commercial real estate
Financing Receivable, Modifications [Line Items]
Number | loan		1		1
Recorded Investment | $		$ 88		$ 88
General C&I | Commercial Portfolio Segment
Financing Receivable, Modifications [Line Items]
Number | loan	1	1	2	4
Recorded Investment | $	$ 321	$ 1,763	$ 579	$ 9,770
Income CRE | Commercial real estate
Financing Receivable, Modifications [Line Items]
Number | loan		1		1
Recorded Investment | $		$ 88		$ 88
HELOC | Consumer real estate
Financing Receivable, Modifications [Line Items]
Number | loan	1	0	5	4
Recorded Investment | $	$ 40	$ 0	$ 204	$ 685
R/E installment loans | Consumer real estate
Financing Receivable, Modifications [Line Items]
Number | loan	0		1
Recorded Investment | $	$ 0		$ 25