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Intangible Assets (Summary Of Intangible Assets and Accumulated Amortization Included In The Consolidated Statements of Condition) (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
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Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 99,337 | $ 72,270
Accumulated Amortization | (56,180) | (51,253)
Net Carrying Value | 43,157 | 21,017
Core deposit intangibles |  |
Intangible Assets [Line Items] |  |
Gross Carrying Amount | 16,850 | 16,850
Accumulated Amortization | (6,154) | (4,721)
Net Carrying Value | 10,696 | 12,129
Customer Relationships |  |
Intangible Assets [Line Items] |  |
Gross Carrying Amount | 76,865 | 54,865
Accumulated Amortization | (49,496) | (46,302)
Net Carrying Value | 27,369 | 8,563
Other |  |
Intangible Assets [Line Items] |  |
Gross Carrying Amount | 5,622 | 555
Accumulated Amortization | (530) | (230)
Net Carrying Value | 5,092 | 325
State banking licenses |  |
Intangible Assets [Line Items] |  |
Net Carrying Value | $ 300 | $ 300

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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/presentationRef -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 Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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