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Accumulated Other Comprehensive Income (Changes in Other Comprehensive Income by Components) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2017 | Mar. 31, 2016
Net unrealized gains on securities available for sale |  |
Accumulated Other Comprehensive Income [Line Items] |  |
Beginning balance | $ 2,209 | $ 16,924
Other Comprehensive Income Loss Before Reclassifications Net Of Tax | 1,707 | (4,326)
Reclassification Out Of Accumulated Other Comprehensive Income | (66) | 2,491
Other Comprehensive Income (Loss) Other Net Of Tax | 1,641 | (1,835)
Ending balance | 3,850 | 15,089
Net unrealized loss on cash flow hedges |  |
Accumulated Other Comprehensive Income [Line Items] |  |
Beginning balance | (613) | (2,927)
Other Comprehensive Income Loss Before Reclassifications Net Of Tax | (38) | (1,457)
Reclassification Out Of Accumulated Other Comprehensive Income | 149 | 1,579
Other Comprehensive Income (Loss) Other Net Of Tax | 111 | 122
Ending balance | (502) | (2,805)
Accumulated Other Comprehensive Income (Loss) [Member] |  |
Accumulated Other Comprehensive Income [Line Items] |  |
Beginning balance | 1,596 | 13,997
Other Comprehensive Income Loss Before Reclassifications Net Of Tax | 1,669 | (5,783)
Reclassification Out Of Accumulated Other Comprehensive Income | 83 | 4,070
Other Comprehensive Income (Loss) Other Net Of Tax | 1,752 | (1,713)
Ending balance | $ 3,348 | $ 12,284

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- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=51821188&loc=d3e1436-108581 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 + Details
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