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Loans and Allowance for Loan Losses - Performing and Impaired Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | $ 2,408,284 | $ 1,897,392
All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 2,373,325 | 1,870,405
Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 34,959 | 26,987
Commercial Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,017,033 | 905,306
Commercial Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,000,516 | 890,051
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 16,517 | 15,255
Consumer Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 459,860 | 417,482
Consumer Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 448,292 | 410,941
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 11,568 | 6,541
Construction and Land Development [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 279,216 | 227,626
Construction and Land Development [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 272,789 | 223,168
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 6,427 | 4,458
Commercial and Industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 637,450 | 337,075
Commercial and Industrial [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 637,109 | 336,668
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 341 | 407
Consumer and Other [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 14,725 | 9,903
Consumer and Other [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 14,619 | 9,577
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 106 | 326
Performing [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 2,370,819 | 1,867,895
Performing [Member] | Commercial Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 999,567 | 889,795
Performing [Member] | Consumer Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 446,892 | 409,394
Performing [Member] | Construction and Land Development [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 272,789 | 222,621
Performing [Member] | Commercial and Industrial [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 636,952 | 336,508
Performing [Member] | Consumer and Other [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 14,619 | 9,577
Impaired Loans [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 2,506 | 2,510
Impaired Loans [Member] | Commercial Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 949 | 256
Impaired Loans [Member] | Consumer Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,400 | 1,547
Impaired Loans [Member] | Construction and Land Development [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 0 | 547
Impaired Loans [Member] | Commercial and Industrial [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 157 | 160
Impaired Loans [Member] | Consumer and Other [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | $ 0 | $ 0

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