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Loans and Allowance for Loan Losses - Loan Risk Rating (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | $ 2,408,284 | $ 1,897,392
Commercial Real Estate [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,017,033 | 905,306
Consumer Real Estate [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 459,860 | 417,482
Construction and Land Development [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 279,216 | 227,626
Commercial and Industrial [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 637,450 | 337,075
Consumer and Other [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 14,725 | 9,903
All Other Loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 2,373,325 | 1,870,405
All Other Loans [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,732,478 | 1,822,268
All Other Loans [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 625,536 | 39,084
All Other Loans [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 12,077 | 5,828
All Other Loans [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 2,915 | 2,979
All Other Loans [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 319 | 246
All Other Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,000,516 | 890,051
All Other Loans [Member] | Commercial Real Estate [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 526,141 | 860,447
All Other Loans [Member] | Commercial Real Estate [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 462,734 | 25,180
All Other Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 10,586 | 4,057
All Other Loans [Member] | Commercial Real Estate [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,055 | 367
All Other Loans [Member] | Commercial Real Estate [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
All Other Loans [Member] | Consumer Real Estate [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 448,292 | 410,941
All Other Loans [Member] | Consumer Real Estate [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 390,787 | 407,336
All Other Loans [Member] | Consumer Real Estate [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 55,210 | 989
All Other Loans [Member] | Consumer Real Estate [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 599 | 738
All Other Loans [Member] | Consumer Real Estate [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,534 | 1,713
All Other Loans [Member] | Consumer Real Estate [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 162 | 165
All Other Loans [Member] | Construction and Land Development [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 272,789 | 223,168
All Other Loans [Member] | Construction and Land Development [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 227,302 | 216,459
All Other Loans [Member] | Construction and Land Development [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 45,416 | 6,089
All Other Loans [Member] | Construction and Land Development [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
All Other Loans [Member] | Construction and Land Development [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 71 | 620
All Other Loans [Member] | Construction and Land Development [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
All Other Loans [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 637,109 | 336,668
All Other Loans [Member] | Commercial and Industrial [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 573,989 | 328,564
All Other Loans [Member] | Commercial and Industrial [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 61,888 | 6,786
All Other Loans [Member] | Commercial and Industrial [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 892 | 1,033
All Other Loans [Member] | Commercial and Industrial [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 207 | 228
All Other Loans [Member] | Commercial and Industrial [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 133 | 57
All Other Loans [Member] | Consumer and Other [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 14,619 | 9,577
All Other Loans [Member] | Consumer and Other [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 14,259 | 9,462
All Other Loans [Member] | Consumer and Other [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 288 | 40
All Other Loans [Member] | Consumer and Other [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
All Other Loans [Member] | Consumer and Other [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 48 | 51
All Other Loans [Member] | Consumer and Other [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 24 | 24
Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 34,959 | 26,987
Purchased Credit Impaired Loans [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 18,795 | 18,974
Purchased Credit Impaired Loans [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 12,772 | 5,841
Purchased Credit Impaired Loans [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 77 | 199
Purchased Credit Impaired Loans [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 3,315 | 1,973
Purchased Credit Impaired Loans [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 16,517 | 15,255
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 8,082 | 12,473
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 7,314 | 2,234
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 20 | 139
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,101 | 409
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 11,568 | 6,541
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 9,028 | 5,258
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 922 | 38
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 57 | 60
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,561 | 1,185
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 6,427 | 4,458
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,353 | 902
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 4,520 | 3,556
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 554 | 0
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 341 | 407
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 249 | 41
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 92 | 366
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 106 | 326
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 83 | 300
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Watch [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 16 | 13
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 7 | 13
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | $ 0 | $ 0

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