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Comprehensive Income (Reclassification out of AOCI) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Total net realized gains | $ 3,688 | $ 308 | $ 2,749 | $ 15,771
Net investment income | 33,375 | 32,061 | 95,326 | 91,208
Loss and loss expense incurred | 316,258 | 285,161 | 911,881 | 861,721
Policy acquisition costs | 193,835 | 174,802 | 567,793 | 509,295
Income before federal income tax | 55,443 | 65,839 | 169,629 | 168,894
Total federal income tax expense | (16,941) | (18,843) | (50,494) | (48,422)
Net income | 38,502 | 46,996 | 119,135 | 120,472
Reclassification out of AOCI |  |  |  |
Net income | (1,354) | 848 | 1,167 | (7,695)
Pension Plan [Member] | Reclassification out of AOCI |  |  |  |
Loss and loss expense incurred | 351 | 371 | 1,009 | 1,114
Policy acquisition costs | 1,264 | 1,338 | 3,639 | 4,013
Income before federal income tax | 1,615 | 1,709 | 4,648 | 5,127
Total federal income tax expense | (565) | (599) | (1,627) | (1,795)
Net income | 1,050 | 1,110 | 3,021 | 3,332
Non-credit OTTI on Disposed Securities [Member] | Reclassification out of AOCI |  |  |  |
Total net realized gains | 0 | 0 | 0 | 357
Income before federal income tax | 0 | 0 | 0 | 357
Total federal income tax expense | 0 | 0 | 0 | (125)
Net income | 0 | 0 | 0 | 232
Held-to-maturity Securities [Member] | Reclassification out of AOCI |  |  |  |
Total net realized gains | 73 | 121 | 161 | 258
Net investment income | (86) | (218) | (265) | (801)
Income before federal income tax | (13) | (97) | (104) | (543)
Total federal income tax expense | 4 | 34 | 36 | 190
Net income | (9) | (63) | (68) | (353)
Available-for-sale Securities [Member] | Reclassification out of AOCI |  |  |  |
Total net realized gains | (3,684) | (305) | (2,747) | (16,778)
Income before federal income tax | (3,684) | (305) | (2,747) | (16,778)
Total federal income tax expense | 1,289 | 106 | 961 | 5,872
Net income | $ (2,395) | $ (199) | $ (1,786) | $ (10,906)

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