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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Statement of Comprehensive Income [Abstract] |  |  |  |
Net Income | $ 41,468 | $ 34,251 | $ 119,475 | $ 110,967
Other Comprehensive Income (Loss), net of tax: |  |  |  |
Unrealized (loss) gain on securities | (3,580) | 7,857 | 26,285 | 5,841
Reclassification adjustment for securities gains included in net income | (1) | (1,124) | (666) | (5,388)
Reclassification adjustment for loss on derivative financial instruments included in net income | 0 | (2,456) | 0 | (2,456)
Non-credit related unrealized gain on other-than-temporarily impaired debt securities | 0 | 0 | 0 | 125
Amortization of unrealized loss on derivative financial instruments | 4 | 3 | 12 | 71
Amortization of net unrecognized pension and postretirement items | 379 | 466 | 877 | 1,398
Other Comprehensive (Loss) Income | (3,198) | 9,658 | 26,508 | 4,503
Total Comprehensive Income | $ 38,270 | $ 43,909 | $ 145,983 | $ 115,470

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