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Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Statement of Comprehensive Income [Abstract] |  |  |  |
Net income | $ 55,958 | $ 26,501 | $ 167,638 | $ 75,666
Unrealized gains and losses on securities: |  |  |  |
Change in unrealized securities gains (losses) arising during period | 28,231 | (11,444) | 29,420 | 32,006
Tax effect | (10,737) | 4,444 | (11,198) | (12,425)
Reclassification adjustment for net gains realized and included in income before income taxes | 5,564 | 0 | 10,837 | 0
Tax effect | 2,094 | 0 | 4,145 | 0
Total change in unrealized gains and losses on securities, net of tax | 14,024 | (7,000) | 11,530 | 19,581
Change in fair value of cash flow hedges: |  |  |  |
Change in unrecognized loss on cash flow hedges | 721 | 949 | 2,006 | 2,236
Tax effect | (300) | (367) | (796) | (863)
Total change in unrecognized loss on cash flow hedges, net of tax | 421 | 582 | 1,210 | 1,373
Change in pension obligation: |  |  |  |
Reclassification adjustment for losses included in income before income taxes | 2,916 | 822 | 8,689 | 4,019
Tax effect | (1,078) | (319) | (3,324) | (1,563)
Total change in pension obligation, net of tax | 1,838 | 503 | 5,365 | 2,456
Net current period other comprehensive income | 16,283 | (5,915) | 18,105 | 23,410
Total comprehensive income | $ 72,241 | $ 20,586 | $ 185,743 | $ 99,076

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