Portfolio Loans - Summary of Recorded Investment in Impaired Portfolio Loans by Category (Details) - Non-Covered Loans - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	$ 18,107,000	$ 9,680,000
Restructured	2,331,000	307,000
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Total Recorded Investment	20,438,000	9,987,000
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	10,959,000	4,406,000
Restructured	2,311,000	307,000
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0.000	0.000
Total Recorded Investment	13,270,000	4,713,000
Commercial - investor owned
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	253,000	927,000
Restructured	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Total Recorded Investment	253,000	927,000
Commercial - owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	198,000
Restructured	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Total Recorded Investment	0	198,000
Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	2,258,000	3,444,000
Restructured	20,000	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Total Recorded Investment	2,278,000	3,444,000
Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	129,000	705,000
Restructured	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Total Recorded Investment	129,000	705,000
Consumer and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	4,508,000	0
Restructured	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Total Recorded Investment	$ 4,508,000	$ 0

The balance of impaired financing receivables greater than 90 days past due that are still accruing interest.

No definition available.

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

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

+ 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)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953550-111524

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