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Loans and Allowance for Loan Losses (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Nonaccrual loans | $ 31,569,000 | $ 73,836,000 |
Financing Receivable, Nonaccrual, No Allowance | 13,188,000 | 36,537,000 |
Financing Receivable, 90 Days or More Past Due, Still Accruing | $ 1,607,000 | 2,362,000 |
Percentage of credit exposure to risk based capital | 25.00% |  |
Loans and other extensions of credit granted to directors, executive officers, and their related entities | $ 45,200,000 | 10,700,000 |
Amount drawn from loans and other extensions of credit granted | 14,500,000 | 6,800,000 |
Commercial loans held-for-sale | 17,685,000 | 31,200,000 |
Mortgage loans held-for-sale | 30,300,000 | 67,800,000 |
Mortgage Loan Volumes Sold | 1,600,000,000 | 1,800,000,000 |
Gains on mortgage loans sold, net | 32,424,000 | 60,042,000 | $ 24,335,000
Loans | 23,414,262,000 | 22,424,501,000 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 0 | 0 | 176,000
Interest Lost on impaired loans | 1,700,000 | 3,300,000 | $ 3,000,000
Currently performing impaired loans | 15,500,000 | 51,700,000 |
Paycheck Protection Program |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 371,100,000 | 1,800,000,000 |
Commercial Real Estate Owner Occupied |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Nonaccrual loans | 2,694,000 | 10,231,000 |
Financing Receivable, Nonaccrual, No Allowance | 0 | 5,985,000 |
Financing Receivable, 90 Days or More Past Due, Still Accruing | 0 | 0 |
Loans | 3,048,822,000 | 2,802,227,000 |
Commercial real estate non owner occupied |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Nonaccrual loans | 1,404,000 | 5,219,000 |
Financing Receivable, Nonaccrual, No Allowance | 0 | 1,522,000 |
Financing Receivable, 90 Days or More Past Due, Still Accruing | $ 0 | $ 0 |
Percentage of credit exposure to risk based capital | 234.10% | 264.00% |
Loans | $ 5,221,704,000 | $ 5,203,384,000 |
Consumer Real Estate |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Nonaccrual loans | 10,264,000 | 22,191,000 |
Financing Receivable, Nonaccrual, No Allowance | 0 | 0 |
Financing Receivable, 90 Days or More Past Due, Still Accruing | 144,000 | 273,000 |
Construction and Land Development |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Nonaccrual loans | 356,000 | 1,953,000 |
Financing Receivable, Nonaccrual, No Allowance | 0 | 0 |
Financing Receivable, 90 Days or More Past Due, Still Accruing | $ 0 | $ 0 |
Percentage of credit exposure to risk based capital | 79.10% | 89.00% |
Loans | $ 2,903,017,000 | $ 2,901,746,000 |
Commercial and Industrial |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Nonaccrual loans | 16,849,000 | 34,238,000 |
Financing Receivable, Nonaccrual, No Allowance | 13,188,000 | 29,030,000 |
Financing Receivable, 90 Days or More Past Due, Still Accruing | 1,091,000 | 1,785,000 |
Consumer and Other |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Nonaccrual loans | 2,000 | 4,000 |
Financing Receivable, Nonaccrual, No Allowance | 0 | 0 |
Financing Receivable, 90 Days or More Past Due, Still Accruing | 372,000 | 304,000 |
Loans | $ 485,489,000 | $ 379,515,000 |

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- Definition The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123605502&loc=d3e21310-158488 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123605502&loc=d3e21286-158488 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123605549&loc=d3e21493-158490 + Details
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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524 + Details
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