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Loans and Allowance for Loan and Lease Losses - Summary of Information Pertaining to Impaired Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Financing Receivable Impaired [Line Items] |  |  |  |  |
Recorded Investment, With Valuation Allowance | $ 25,815 |  | $ 25,815 |  | $ 14,593
Unpaid Principal, With Valuation Allowance | 25,803 |  | 25,803 |  | 14,584
Related Allowance, With Valuation Allowance | 4,466 |  | 4,466 |  | 2,713
Recorded Investment, Without Valuation Allowance | 20,309 |  | 20,309 |  | 24,720
Unpaid Principal, Without Valuation Allowance | 20,919 |  | 20,919 |  | 25,327
Average Impaired Loans | 43,252 | $ 34,907 | 42,718 | $ 36,904 |
Interest Recognized | 192 | 125 | 692 | 258 |
Purchased Credit Impaired Loans |  |  |  |  |
Financing Receivable Impaired [Line Items] |  |  |  |  |
Recorded Investment, With Valuation Allowance | 79 |  | 79 |  |
Unpaid Principal, With Valuation Allowance | 64 |  | 64 |  |
Related Allowance, With Valuation Allowance | 4 |  | 4 |  |
Average Impaired Loans | 40 | 1,494 | 40 | 405 |
Commercial real estate |  |  |  |  |
Financing Receivable Impaired [Line Items] |  |  |  |  |
Recorded Investment, With Valuation Allowance | 4,755 |  | 4,755 |  | 165
Unpaid Principal, With Valuation Allowance | 4,755 |  | 4,755 |  | 165
Related Allowance, With Valuation Allowance | 460 |  | 460 |  | 123
Recorded Investment, Without Valuation Allowance | 1,119 |  | 1,119 |  | 848
Unpaid Principal, Without Valuation Allowance | 1,185 |  | 1,185 |  | 881
Average Impaired Loans | 3,378 | 793 | 3,443 | 1,159 |
Interest Recognized | 6 | 1 | 6 | 1 |
Construction, land development, land |  |  |  |  |
Financing Receivable Impaired [Line Items] |  |  |  |  |
Recorded Investment, With Valuation Allowance | 88 |  | 88 |  |
Unpaid Principal, With Valuation Allowance | 88 |  | 88 |  |
Related Allowance, With Valuation Allowance | 21 |  | 21 |  |
Recorded Investment, Without Valuation Allowance | 52 |  | 52 |  | 136
Unpaid Principal, Without Valuation Allowance | 52 |  | 52 |  | 136
Average Impaired Loans | 140 | 275 | 138 | 248 |
1-4 family residential properties |  |  |  |  |
Financing Receivable Impaired [Line Items] |  |  |  |  |
Recorded Investment, With Valuation Allowance | 221 |  | 221 |  | 237
Unpaid Principal, With Valuation Allowance | 216 |  | 216 |  | 235
Related Allowance, With Valuation Allowance | 125 |  | 125 |  | 152
Recorded Investment, Without Valuation Allowance | 1,949 |  | 1,949 |  | 2,401
Unpaid Principal, Without Valuation Allowance | 2,053 |  | 2,053 |  | 2,519
Average Impaired Loans | 2,251 | 1,488 | 2,404 | 1,402 |
Interest Recognized | 2 | 6 | 4 | 7 |
Farmland |  |  |  |  |
Financing Receivable Impaired [Line Items] |  |  |  |  |
Recorded Investment, With Valuation Allowance | 914 |  | 914 |  |
Unpaid Principal, With Valuation Allowance | 900 |  | 900 |  |
Related Allowance, With Valuation Allowance | 72 |  | 72 |  |
Recorded Investment, Without Valuation Allowance | 2,599 |  | 2,599 |  | 3,800
Unpaid Principal, Without Valuation Allowance | 2,881 |  | 2,881 |  | 4,071
Average Impaired Loans | 3,834 | 3,200 | 3,657 | 2,406 |
Interest Recognized | 10 | 9 | 17 | 18 |
Commercial Loans |  |  |  |  |
Financing Receivable Impaired [Line Items] |  |  |  |  |
Recorded Investment, With Valuation Allowance | 14,981 |  | 14,981 |  | 9,194
Unpaid Principal, With Valuation Allowance | 15,010 |  | 15,010 |  | 9,191
Related Allowance, With Valuation Allowance | 2,199 |  | 2,199 |  | 1,409
Recorded Investment, Without Valuation Allowance | 14,497 |  | 14,497 |  | 17,422
Unpaid Principal, Without Valuation Allowance | 14,649 |  | 14,649 |  | 17,605
Average Impaired Loans | 29,088 | 24,023 | 28,047 | 27,960 |
Interest Recognized | 174 | 109 | 664 | 232 |
Factored receivables |  |  |  |  |
Financing Receivable Impaired [Line Items] |  |  |  |  |
Recorded Investment, With Valuation Allowance | 4,607 |  | 4,607 |  | 4,726
Unpaid Principal, With Valuation Allowance | 4,607 |  | 4,607 |  | 4,726
Related Allowance, With Valuation Allowance | 1,535 |  | 1,535 |  | 949
Average Impaired Loans | 4,175 | 3,512 | 4,666 | 3,235 |
Consumer |  |  |  |  |
Financing Receivable Impaired [Line Items] |  |  |  |  |
Recorded Investment, With Valuation Allowance | 170 |  | 170 |  | 271
Unpaid Principal, With Valuation Allowance | 163 |  | 163 |  | 267
Related Allowance, With Valuation Allowance | 50 |  | 50 |  | 80
Recorded Investment, Without Valuation Allowance | 93 |  | 93 |  | 113
Unpaid Principal, Without Valuation Allowance | 99 |  | 99 |  | $ 115
Average Impaired Loans | $ 346 | $ 122 | 323 | $ 89 |
Interest Recognized |  |  | $ 1 |  |

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