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Loans - Summary of Portfolio Loans Individually Evaluated for Impairment by Category (Details) - Portfolio loans, net - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Financing Receivable, Impaired [Line Items] |  |
Unpaid Contractual Principal Balance | $ 19,320 | $ 15,057
Recorded Investment With No Allowance | 6,283 | 3,241
Recorded Investment With Allowance | 7,544 | 12,150
Total Recorded Investment | 13,827 | 15,391
Impaired Financing Receivable, Related Allowance | 1,755 | 3,064
Average Recorded Investment | 18,644 | 7,366
Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Contractual Principal Balance | 15,548 | 12,341
Recorded Investment With No Allowance | 3,751 | 566
Recorded Investment With Allowance | 6,534 | 11,791
Total Recorded Investment | 10,285 | 12,357
Impaired Financing Receivable, Related Allowance | 1,572 | 2,909
Average Recorded Investment | 15,283 | 4,489
Commercial - owner occupied |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Contractual Principal Balance | 0 | 225
Recorded Investment With No Allowance | 0 | 231
Recorded Investment With Allowance | 0 | 0
Total Recorded Investment | 0 | 231
Impaired Financing Receivable, Related Allowance | 0 | 0
Average Recorded Investment | 0 | 227
Commercial - investor owned |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Contractual Principal Balance | 288 | 525
Recorded Investment With No Allowance | 288 | 435
Recorded Investment With Allowance | 0 | 0
Total Recorded Investment | 288 | 435
Impaired Financing Receivable, Related Allowance | 0 | 0
Average Recorded Investment | 288 | 668
Construction and land development |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Contractual Principal Balance | 1,935 | 1,904
Recorded Investment With No Allowance | 1,603 | 1,947
Recorded Investment With Allowance | 332 | 359
Total Recorded Investment | 1,935 | 2,306
Impaired Financing Receivable, Related Allowance | 131 | 155
Average Recorded Investment | 1,550 | 1,918
Residential real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Contractual Principal Balance | 1,540 | 62
Recorded Investment With No Allowance | 632 | 62
Recorded Investment With Allowance | 678 | 0
Total Recorded Investment | 1,310 | 62
Impaired Financing Receivable, Related Allowance | 52 | 0
Average Recorded Investment | 1,514 | 64
Consumer and other |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Contractual Principal Balance | 9 | 0
Recorded Investment With No Allowance | 9 | 0
Recorded Investment With Allowance | 0 | 0
Total Recorded Investment | 9 | 0
Impaired Financing Receivable, Related Allowance | 0 | 0
Average Recorded Investment | $ 9 | $ 0

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