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Loans and Allowance for Loan and Lease Losses - Schedule of Recorded Investment and Unpaid Principal Balances for Impaired Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	$ 1,245,840	$ 1,291,885
Unpaid Principal	1,258,428	1,306,193
Difference	(12,588)	(14,308)
Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	293,485	291,819
Unpaid Principal	300,151	299,272
Difference	(6,666)	(7,453)
Construction, land development, land
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	41,622	43,876
Unpaid Principal	43,111	45,376
Difference	(1,489)	(1,500)
1-4 family residential properties
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	76,973	78,244
Unpaid Principal	79,488	81,141
Difference	(2,515)	(2,897)
Farmland
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	33,250	33,573
Unpaid Principal	33,208	33,533
Difference	42	40
Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	509,433	495,356
Unpaid Principal	510,283	496,719
Difference	(850)	(1,363)
Factored receivables
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	199,532	215,088
Unpaid Principal	200,621	216,201
Difference	(1,089)	(1,113)
Consumer
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	13,530	13,050
Unpaid Principal	13,551	13,072
Difference	(21)	(22)
Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	78,015	120,879
Unpaid Principal	$ 78,015	$ 120,879

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- Definition

Loans and leases receivable investment net of unpaid principal.

+ References

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- Definition

Loans​ and​ leases receivable​ unpaid principal.

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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