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Accumulated Other Comprehensive Income (Changes in Other Comprehensive Income by Components) (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Net unrealized gains on securities available for sale |  |  |  |
Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning balance | $ (15,518,000) | $ 256,000 | $ (2,638,000) | $ 2,209,000
Other Comprehensive Income Loss Before Reclassifications Net Of Tax | (5,607,000) | 1,185,000 | (18,361,000) | (726,000)
Reclassification Out Of Accumulated Other Comprehensive Income | (63,000) | (70,000) | (189,000) | (112,000)
Other Comprehensive Income (Loss) Other Net Of Tax | (5,670,000) | 1,115,000 | (18,550,000) | (838,000)
Ending balance | (21,188,000) | 1,371,000 | (21,188,000) | 1,371,000
Net unrealized loss on cash flow hedges |  |  |  |
Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning balance | 256,000 | (563,000) | (311,000) | (613,000)
Other Comprehensive Income Loss Before Reclassifications Net Of Tax | (380,000) | (74,000) | (635,000) | (301,000)
Reclassification Out Of Accumulated Other Comprehensive Income | 517,000 | 108,000 | 1,339,000 | 385,000
Other Comprehensive Income (Loss) Other Net Of Tax | 137,000 | 34,000 | 704,000 | 84,000
Ending balance | 393,000 | (529,000) | 393,000 | (529,000)
Accumulated Other Comprehensive Income (Loss) [Member] |  |  |  |
Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning balance | (15,262,000) | (307,000) | (2,949,000) | 1,596,000
Other Comprehensive Income Loss Before Reclassifications Net Of Tax | (5,987,000) | 1,111,000 | (18,996,000) | (1,027,000)
Reclassification Out Of Accumulated Other Comprehensive Income | 454,000 | 38,000 | 1,150,000 | 273,000
Other Comprehensive Income (Loss) Other Net Of Tax | (5,533,000) | 1,149,000 | (17,846,000) | (754,000)
Ending balance | $ (20,795,000) | $ 842,000 | $ (20,795,000) | $ 842,000

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