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Portfolio Loans - Summary of Portfolio Loans Individually Evaluated for Impairment by Category (Details) - Non-Covered Loans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	$ 15,057	$ 11,864
Recorded Investment With No Allowance	3,241	5,072
Recorded Investment With Allowance	12,150	4,915
Total Recorded Investment	15,391	9,987
Related Allowance	3,064	2,335
Average Recorded Investment	7,366	11,924
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	12,341	5,554
Recorded Investment With No Allowance	566	509
Recorded Investment With Allowance	11,791	4,204
Total Recorded Investment	12,357	4,713
Related Allowance	2,909	1,953
Average Recorded Investment	4,489	6,970
CRE - investor owned
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	525	927
Recorded Investment With No Allowance	435	927
Recorded Investment With Allowance	0	0
Total Recorded Investment	435	927
Related Allowance	0	0
Average Recorded Investment	668	970
CRE - owner occupied
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	225	329
Recorded Investment With No Allowance	231	85
Recorded Investment With Allowance	0	113
Total Recorded Investment	231	198
Related Allowance	0	6
Average Recorded Investment	227	301
Construction and land development
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	1,904	4,349
Recorded Investment With No Allowance	1,947	2,914
Recorded Investment With Allowance	359	530
Total Recorded Investment	2,306	3,444
Related Allowance	155	369
Average Recorded Investment	1,918	3,001
Residential real estate
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	62	705
Recorded Investment With No Allowance	62	637
Recorded Investment With Allowance	0	68
Total Recorded Investment	62	705
Related Allowance	0	7
Average Recorded Investment	64	682
Consumer and other
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	0	0
Recorded Investment With No Allowance	0	0
Recorded Investment With Allowance	0	0
Total Recorded Investment	0	0
Related Allowance	0	0
Average Recorded Investment	$ 0	$ 0

X

- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

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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 (c)(1)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5258-111524

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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 14A
-Subparagraph (b)
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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)
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+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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