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Comprehensive Income (Reclassification out of AOCI) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Amounts reclassified into net income: non-credit OTTI | $ 1,200 | $ 1 | $ 1,669 | $ 14
Non-credit OTTI, Tax | (420) | 0 | (584) | (5)
Amounts reclassified into Net Income: Non-credit other-than-temporary impairments | 780 | 1 | 1,085 | 9
Total HTM Related, Tax | 130 | 165 | 367 | 631
Amounts reclassified from AOCI, HTM Related | (243) | (307) | (683) | (1,172)
Realized gains on AFS disposals and OTTI | (16,435) | (13,516) | (28,672) | (24,780)
Total realized gains on AFS disposals and OTTI | 5,752 | 4,731 | 10,035 | 8,673
Amounts reclassified into net income: realized gains on available for sale securities | (10,683) | (8,785) | (18,637) | (16,107)
Amount reclassified into Net Income: Net actuarial loss, Gross | 381 | 790 | 1,142 | 3,419
Defined pension and other post-retirement benefit plans, tax | (134) | (277) | (400) | (16,606)
Amount reclassified into Net Income: Prior service cost, Gross |  |  |  | 10
Amount reclassified into Net Income: Curtailment expense |  |  |  | 16
Defined pension and other post-retirement benefit plans, gross | 381 | 790 | 1,142 | 47,445
Total defined benefit pension and post-retirement plans | 247 | 513 | 742 | 30,839
Net Investment Income Earned [Member] |  |  |  |
Amortization of net unrealized gains on HTM securities | (385) | (453) | (1,137) | (1,633)
Net Investment Income Earned [Member] | Amortization Of Non Credit OTTI Losses On HTM Securities [Member] |  |  |  |
Amounts reclassified into net income: non-credit OTTI | 0 | 1 | 0 | 14
Income From Continuing Operations Before Federal Income Tax [Member] |  |  |  |
Amounts reclassified into net income: non-credit OTTI | 1,200 | 1 | 1,669 | 14
Amortization of net unrealized gains on HTM securities | (373) | (472) | (1,050) | (1,803)
Realized gains on AFS disposals and OTTI | (16,435) | (13,516) | (28,672) | (24,780)
Amount reclassified into Net Income: Net actuarial loss, Gross | 381 | 790 | 1,142 | 3,419
Amount reclassified into Net Income: Prior service cost, Gross | 0 | 0 | 0 | 10
Amount reclassified into Net Income: Curtailment expense | 0 | 0 | 0 | 16
Defined pension and other post-retirement benefit plans, gross | 381 | 790 | 1,142 | 3,445
Total Federal Income Tax Expense [Member] |  |  |  |
Non-credit OTTI, Tax | (420) | 0 | (584) | (5)
Total HTM Related, Tax | 130 | 165 | 367 | 631
Total realized gains on AFS disposals and OTTI | 5,752 | 4,731 | 10,035 | 8,673
Defined pension and other post-retirement benefit plans, tax | (134) | (277) | (400) | (1,206)
Net Income Financial Statement Line Item [Member] |  |  |  |
Amounts reclassified into Net Income: Non-credit other-than-temporary impairments | 780 | 1 | 1,085 | 9
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax | (9,899) | (8,578) | (17,493) | (15,031)
Amounts reclassified from AOCI, HTM Related | (243) | (307) | (683) | (1,172)
Amounts reclassified into net income: realized gains on available for sale securities | (10,683) | (8,785) | (18,637) | (16,107)
Total defined benefit pension and post-retirement plans | 247 | 513 | 742 | 2,239
Net Realized Investment Gains [Member] |  |  |  |
Unrealized gains and losses on HTM disposals | 12 | (19) | 87 | (170)
Realized gains on AFS disposals and OTTI | (16,435) | (13,516) | (28,672) | (24,780)
Net Realized Investment Gains [Member] | Non-credit OTTI on Disposed Securities [Member] |  |  |  |
Amounts reclassified into net income: non-credit OTTI | 1,200 | 0 | 1,669 | 0
Loss And Loss Expense Incurred [Member] |  |  |  |
Amount reclassified into Net Income: Net actuarial loss, Gross | 88 | 159 | 263 | 717
Amount reclassified into Net Income: Prior service cost, Gross | 0 | 0 | 0 | 7
Policy acquisition costs [Member] |  |  |  |
Amount reclassified into Net Income: Net actuarial loss, Gross | 293 | 631 | 879 | 2,702
Amount reclassified into Net Income: Prior service cost, Gross | 0 | 0 | 0 | 3
Amount reclassified into Net Income: Curtailment expense | $ 0 | $ 0 | $ 0 | $ 16

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