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Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Statement of Comprehensive Income [Abstract] |  |  |
Net income | $ 167,699 | $ 134,348 | $ 195,028
Unrealized gains and losses on securities: |  |  |
Change in unrealized securities gains (losses) arising during period | (50,441) | 9,566 | 3,108
Deferred tax benefit (expense) | 19,833 | (3,759) | (1,148)
Reclassification adjustment for losses (gains) included in income before income taxes | 0 | (2,322) | 262
Deferred tax expense (benefit) | 0 | 917 | (159)
Total change in unrealized gains (losses) on securities, net of tax | (30,608) | 4,402 | 2,063
Change in fair value of cash flow hedges: |  |  |
Change in unrecognized loss on cash flow hedges | (103) | (2,779) | (8,329)
Deferred tax benefit | 43 | 1,097 | 3,289
Reclassification adjustment for losses included in income before income taxes | 3,281 | 3,095 | 7,107
Deferred tax benefit | (1,363) | (1,222) | (2,806)
Total change in unrecognized loss on cash flow hedges, net of tax | 1,858 | 191 | (739)
Change in pension obligation: |  |  |
Change in pension obligation | 123,557 | (44,315) | (58,630)
Deferred tax benefit (expense) | (48,475) | 17,354 | 22,959
Reclassification adjustment for losses included in income before income taxes | 17,195 | 11,236 | 7,071
Deferred tax benefit | (6,689) | (4,400) | (2,769)
Total change in pension obligation, net of tax | 85,588 | (20,125) | (31,369)
Net current period other comprehensive income (loss) | 56,838 | (15,532) | (30,045)
Total comprehensive income | $ 224,537 | $ 118,816 | $ 164,983

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