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Loans (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Apr. 01, 2019 | Jul. 01, 2018
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Loans and Leases Receivable, Deferred Income | $ 16,300,000 | $ 12,500,000 |  |  |
Goodwill, Purchase Accounting Adjustments | (3,373,000) | (793,000) | $ 0 |  |
Deposit Liabilities Reclassified as Loans Receivable | 2,200,000 | 2,300,000 |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  | $ 589,698,000 | $ 277,919,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables |  |  |  | 578,577,000 | 272,753,000
Business Combination, Acquired Receivable, Fair Value |  |  |  | 578,577,000 | 272,753,000
Executive officers and directors |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Loans due from related party | 44,300,000 | 35,900,000 |  |  |
Loans and Leases Receivable, Related Parties, Additions | 9,200,000 | 1,400,000 |  |  |
Increase (Decrease) in Customer Advances | 8,900,000 | 4,900,000 |  |  |
Loans and Leases Receivable, Related Parties, Proceeds | 15,300,000 | 11,500,000 |  |  |
Executive officers and directors | Loans |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Loans due from related party | 28,700,000 | 25,900,000 |  |  |
Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount | 3,200,000 | 4,600,000 |  |  | 5,100,000
Business Combination, Acquired Receivable, Fair Value | 3,000,000.0 | 4,400,000 |  |  | $ 4,900,000
Financial Asset Acquired with Credit Deterioration [Member] | NewDominion [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Allowance for Loan and Lease Losses, Loans Acquired | 101,000 | 0 |  |  |
Financial Asset Acquired with Credit Deterioration [Member] | Carolina Alliance [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount | 13,800,000 |  |  | 19,900,000 |
Business Combination, Acquired Receivable, Fair Value |  |  |  | $ 18,400,000 |
Allowance for Loan and Lease Losses, Loans Acquired | 167,000 |  |  |  |
Loans |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Goodwill, Purchase Accounting Adjustments | $ 11,700,000 | $ 4,400,000 |  |  |

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- Definition Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818 + Details
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- Definition Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for 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 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738 Reference 3: 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=118936363&loc=d3e5074-111524 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84159169&loc=d3e10152-111534 + Details
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