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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Revenues: |  |  |  |
Net premiums | $ 1,950,661 | $ 1,788,676 | $ 3,814,143 | $ 3,524,806
Investment income, net of related expenses | 328,334 | 337,436 | 669,274 | 708,476
Investment related gains (losses), net: |  |  |  |
Other-than-temporary impairments on fixed maturity securities | (1,959) | (5,582) | (9,566) | (7,138)
Other-than-temporary impairments on fixed maturity securities transferred to (from) accumulated other comprehensive income | 162 | 292 | (7,059) | 292
Other investment related gains (losses), net | 25,598 | 32,678 | 83,946 | 157,854
Total investment related gains (losses), net | 23,801 | 27,388 | 67,321 | 151,008
Other revenues | 72,957 | 50,477 | 117,990 | 102,122
Total revenues | 2,375,753 | 2,203,977 | 4,668,728 | 4,486,412
Benefits and Expenses: |  |  |  |
Claims and other policy benefits | 1,625,446 | 1,520,013 | 3,205,595 | 2,989,462
Interest credited | 66,697 | 96,196 | 154,739 | 202,259
Policy Acquisition Costs And Other Insurance Expenses | 335,939 | 274,519 | 643,573 | 620,766
Other operating expenses | 105,541 | 97,161 | 215,639 | 203,311
Interest expense | 23,360 | 25,818 | 46,682 | 50,387
Collateral Financing Expense | 2,878 | 3,101 | 5,845 | 6,303
Total benefits and expenses | 2,159,861 | 2,016,808 | 4,272,073 | 4,072,488
Income before income taxes | 215,892 | 187,169 | 396,655 | 413,924
Provision for income taxes | (74,781) | (63,225) | (132,226) | (141,060)
Net income | $ 141,111 | $ 123,944 | $ 264,429 | $ 272,864
Earnings Per Share [Abstract] |  |  |  |
Basic earning per share | $ 1.91 | $ 1.68 | $ 3.59 | $ 3.71
Diluted earnings per share | $ 1.91 | $ 1.66 | $ 3.57 | $ 3.68
Dividends declared per share | $ 0.18 | $ 0.12 | $ 0.36 | $ 0.24

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