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Accumulated Other Comprehensive Income (Changes in Other Comprehensive Income by Components) (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Net unrealized gains on securities available for sale |  |  |  |
Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning balance | $ 3,850,000 | $ 15,089,000 | $ 2,209,000 | $ 16,924,000
Other Comprehensive Income Loss Before Reclassifications Net Of Tax | (3,618,000) | 3,060,000 | (1,911,000) | (1,266,000)
Reclassification Out Of Accumulated Other Comprehensive Income | 24,000 | (64,000) | (42,000) | 2,427,000
Other Comprehensive Income (Loss) Other Net Of Tax | (3,594,000) | 2,996,000 | (1,953,000) | 1,161,000
Ending balance | 256,000 | 18,085,000 | 256,000 | 18,085,000
Net unrealized loss on cash flow hedges |  |  |  |
Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning balance | (502,000) | (2,805,000) | (613,000) | (2,927,000)
Other Comprehensive Income Loss Before Reclassifications Net Of Tax | (189,000) | (949,000) | (227,000) | (2,406,000)
Reclassification Out Of Accumulated Other Comprehensive Income | 128,000 | 1,474,000 | 277,000 | 3,053,000
Other Comprehensive Income (Loss) Other Net Of Tax | (61,000) | 525,000 | 50,000 | 647,000
Ending balance | (563,000) | (2,280,000) | (563,000) | (2,280,000)
Accumulated Other Comprehensive Income (Loss) [Member] |  |  |  |
Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning balance | 3,348,000 | 12,284,000 | 1,596,000 | 13,997,000
Other Comprehensive Income Loss Before Reclassifications Net Of Tax | (3,807,000) | 2,111,000 | (2,138,000) | (3,672,000)
Reclassification Out Of Accumulated Other Comprehensive Income | 152,000 | 1,410,000 | 235,000 | 5,480,000
Other Comprehensive Income (Loss) Other Net Of Tax | (3,655,000) | 3,521,000 | (1,903,000) | 1,808,000
Ending balance | $ (307,000) | $ 15,805,000 | $ (307,000) | $ 15,805,000

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