Loans - Impaired Loans Individually Evaluated (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
With an allowance recorded
Related allowance	$ 8,092	$ 1,775
Recorded investment	80,682	93,324
Unpaid principal balance	81,046	93,867
Commercial & Industrial
With an allowance recorded
Related allowance	6,700	1,654
Recorded investment	62,336	71,082
Unpaid principal balance	62,657	71,576
Real Estate Portfolio Segment
With an allowance recorded
Related allowance	1,064
Recorded investment	17,922	22,023
Unpaid principal balance	17,971	22,071
Consumer and other
With an allowance recorded
Related allowance	328	121
Recorded investment	424	219
Unpaid principal balance	418	220
Originated
With no related allowance recorded
Recorded investment	22,157	41,920
Unpaid principal balance	22,327	42,178
With an allowance recorded
Recorded investment	23,005	3,111
Unpaid principal balance	23,005	3,157
Related allowance	6,234	513
Recorded investment	45,162	45,031
Unpaid principal balance	45,332	45,335
Originated \| Commercial & Industrial
With no related allowance recorded
Recorded investment	17,433	33,415
Unpaid principal balance	17,601	33,671
With an allowance recorded
Recorded investment	22,886	2,992
Unpaid principal balance	22,886	3,038
Related allowance	6,114	394
Originated \| Commercial real estate
With no related allowance recorded
Recorded investment	2,021	7,155
Unpaid principal balance	2,028	7,162
Originated \| Residential mortgage
With no related allowance recorded
Recorded investment	2,614	1,254
Unpaid principal balance	2,609	1,249
Originated \| Consumer and other
With no related allowance recorded
Recorded investment	89	96
Unpaid principal balance	89	96
With an allowance recorded
Recorded investment	119	119
Unpaid principal balance	119	119
Related allowance	120	119
Acquired
With no related allowance recorded
Recorded investment	29,593	46,538
Unpaid principal balance	29,750	46,755
With an allowance recorded
Recorded investment	5,927	1,755
Unpaid principal balance	5,964	1,777
Related allowance	1,858	1,262
Recorded investment	35,520	48,293
Unpaid principal balance	35,714	48,532
Acquired \| Commercial & Industrial
With no related allowance recorded
Recorded investment	17,559	32,922
Unpaid principal balance	17,653	33,093
With an allowance recorded
Recorded investment	4,458	1,753
Unpaid principal balance	4,517	1,774
Related allowance	586	1,260
Acquired \| Owner occupied commercial real estate
With no related allowance recorded
Recorded investment	7,490
Unpaid principal balance	7,513
With an allowance recorded
Recorded investment	1,253	8,942
Unpaid principal balance	1,237	8,949
Related allowance	1,064
Acquired \| Commercial real estate
With no related allowance recorded
Recorded investment	1,912	2,002
Unpaid principal balance	1,937	2,026
Acquired \| Construction, land & land development
With no related allowance recorded
Recorded investment	1,336
Unpaid principal balance	1,349
With an allowance recorded
Recorded investment		978
Unpaid principal balance		991
Acquired \| Residential mortgage
With no related allowance recorded
Recorded investment	1,296	1,692
Unpaid principal balance	1,298	1,694
Acquired \| Consumer and other
With no related allowance recorded
Recorded investment		2
Unpaid principal balance		2
With an allowance recorded
Recorded investment	216	2
Unpaid principal balance	210	3
Related allowance	$ 208	$ 2

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953550-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

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