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Loans and the Allowance for Loan Losses (Details) - Loans held-for-sale - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
Total carrying amount | $ 4,710 | $ 33,250
Commercial Portfolio Segment [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Total carrying amount |  | 2,285
Commercial Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Total carrying amount | 1,990 | 30,965
Residential Mortgage Portfolio Segment [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Total carrying amount | $ 2,720 |

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- Definition Amount, before valuation allowance, of financing receivable classified as held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120238483&loc=d3e48678-111004 + Details
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