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Goodwill And Intangible Assets (Summary of Core Deposit, Customer Relationship and Other Intangibles) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 69,722 | $ 69,722
Accumulated Amortization | 23,826 | 12,757
Net Carrying Value | 45,896 | 56,965
Core Deposits [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 51,402 | 51,402
Accumulated Amortization | 16,419 | 8,217
Net Carrying Value | 34,983 | 43,185
Net Carrying Value | 35,000 | 43,200
Customer Relationships Intangible [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 17,753 | 17,753
Accumulated Amortization | 7,124 | 4,540
Net Carrying Value | 10,629 | 13,213
Net Carrying Value | 10,600 | 13,200
Other Intangible Assets [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 567 | 567
Accumulated Amortization | 283 | 0
Net Carrying Value | $ 284 | $ 567

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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