Loans (Interest Income Recognized in loans individually evaluated for impairment) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Originated Loans [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Total Interest Income	$ 1,415	$ 965	$ 2,793	$ 1,896
Impaired Financing Receivable Average Recorded Investment [Abstract]
Total Average Recorded Investment	168,591	153,578	167,692	153,713
Acquired loans accounted for under ASC 310-20 [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Total Interest Income	1,415	965	2,793	1,896
Impaired Financing Receivable Average Recorded Investment [Abstract]
Total Average Recorded Investment	169,292	154,325	168,416	154,460
Commercial Loan [Member] \| Originated Loans [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Impaired Financing Receivable With Related Allowance Interest Income Accrual Method	367	129	733	250
Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method	347	131	687	262
Impaired Financing Receivable Average Recorded Investment [Abstract]
Impaired Financing Receivable With Related Allowance Average Recorded Investment	53,392	46,976	52,141	49,154
Impaired Financing Receivable With No Related Allowance Average Recorded Investment	32,002	22,129	32,124	19,946
Commercial Loan [Member] \| Acquired loans accounted for under ASC 310-20 [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Impaired Financing Receivable With Related Allowance Interest Income Accrual Method	0	0	0	0
Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method	0	0
Impaired Financing Receivable Average Recorded Investment [Abstract]
Impaired Financing Receivable With Related Allowance Average Recorded Investment	701	747	724	747
Impaired Financing Receivable With No Related Allowance Average Recorded Investment	0	0
Troubled Debt Restructuring [Member] \| Originated Loans [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Impaired Financing Receivable With Related Allowance Interest Income Accrual Method	701	705	1,373	1,384
Impaired Financing Receivable Average Recorded Investment [Abstract]
Impaired Financing Receivable With Related Allowance Average Recorded Investment	$ 83,197	$ 84,473	$ 83,427	$ 84,613

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524

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-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

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