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Purchased Credit Impaired ("PCI") Loans - Summary of Aging of Recorded Investment in Past Due PCI Loans by Portfolio Class and Category (Details) - Covered Loans - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
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Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
30-89 Days Past Due | $ 1,223 | $ 169
90 or More Days Past Due | 2,775 | 51
Total Past Due | 3,998 | 220
Current | 77,984 | 39,549
Total | 81,982 | 39,769
Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
30-89 Days Past Due | 0 | 0
90 or More Days Past Due | 0 | 0
Total Past Due | 0 | 0
Current | 3,676 | 3,523
Total | 3,676 | 3,523
CRE - owner occupied |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
30-89 Days Past Due | 46 | 0
90 or More Days Past Due | 909 | 0
Total Past Due | 955 | 0
Current | 10,831 | 11,863
Total | 11,786 | 11,863
Commercial Real Estate Investor Owned |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
30-89 Days Past Due | 429 | 0
90 or More Days Past Due | 396 | 0
Total Past Due | 825 | 0
Current | 45,040 | 8,162
Total | 45,865 | 8,162
Construction and land development |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
30-89 Days Past Due | 0 | 0
90 or More Days Past Due | 478 | 0
Total Past Due | 478 | 0
Current | 7,449 | 4,365
Total | 7,927 | 4,365
Residential real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
30-89 Days Past Due | 748 | 169
90 or More Days Past Due | 992 | 51
Total Past Due | 1,740 | 220
Current | 10,921 | 11,572
Total | 12,661 | 11,792
Consumer and other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
30-89 Days Past Due | 0 | 0
90 or More Days Past Due | 0 | 0
Total Past Due | 0 | 0
Current | 67 | 64
Total | $ 67 | $ 64

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- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + 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=84173941&loc=d3e5111-111524 + Details
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- Definition Financing receivables that are current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524 + Details
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- Definition Recorded Investment in financing receivables that are past due at 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 7A -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524 + Details
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- Definition Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(3)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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