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Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Net income | $ 39,524 | $ 81,421 | $ 112,602 | $ 164,481
Unrealized gains on securities: |  |  |  |
Change in unrealized securities gains arising during period | 14,783 | (2,753) | 16,376 | 5,344
Deferred tax benefit (expense) | (5,949) | 1,064 | (6,582) | (2,104)
Reclassification adjustment for losses (gains) included in income before income taxes | (31) | (254) | (34) | 291
Deferred tax expense (benefit) | 12 | 122 | 13 | (93)
Total change in unrealized gains on securities, net of tax | 8,815 | (1,821) | 9,773 | 3,438
Change in fair value of cash flow hedges: |  |  |  |
Change in unrecognized loss on cash flow hedges | 619 | (2,701) | 1,838 | (78)
Deferred tax benefit (expense) | (244) | 1,057 | (726) | 31
Reclassification adjustment for gains (losses) included in income before income taxes | (769) | (1,030) | (2,294) | (3,961)
Deferred tax benefit (expense) | 304 | 416 | 906 | 1,564
Total change in unrecognized loss on cash flow hedges, net of tax | (90) | (2,258) | (276) | (2,444)
Change in pension obligation: |  |  |  |
Change in pension obligation | 2,788 | 1,648 | 8,368 | 4,944
Deferred tax benefit (expense) | (1,092) | (645) | (3,277) | (1,936)
Total change in pension obligation, net of tax | 1,696 | 1,003 | 5,091 | 3,008
Other comprehensive income (loss) | 10,421 | (3,076) | 14,588 | 4,002
Total comprehensive income | $ 49,945 | $ 78,345 | $ 127,190 | $ 168,483

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