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Supplemental Comprehensive Income Disclosures (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Beginning Balance |  |  | $ (20,588) | $ 1,259
Other comprehensive income (loss) before reclassification adjustment | (3,606) | (2,598) | 10,961 | (20,574)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax | (18) | 0 |  |
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax |  |  | 10,943 | (23,786)
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | (31) | 3,058
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax | (1) | 0 |  |
Total other comprehensive (loss) income | (3,654) | (2,747) | 10,912 | (20,728)
Accumulated Other Comprehensive Income (Loss), Ending Balance | (9,676) | (19,469) | (9,676) | (19,469)
Accumulated Net Unrealized Investment Gain (Loss) [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Beginning Balance |  |  | (20,868) | 1,121
Other comprehensive income (loss) before reclassification adjustment |  |  | 10,961 | (23,786)
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | (32) | 3,058
Total other comprehensive (loss) income |  |  | 10,929 | (20,728)
Accumulated Other Comprehensive Income (Loss), Ending Balance | (9,939) | (19,607) | (9,939) | (19,607)
Accumulated Defined Benefit Plans Adjustment [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Beginning Balance |  |  | 280 | 138
Other comprehensive income (loss) before reclassification adjustment |  |  | 0 | 0
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | 0 | 0
Total other comprehensive (loss) income |  |  | 0 | 0
Accumulated Other Comprehensive Income (Loss), Ending Balance | 280 | 138 | 280 | 138
Derivative [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Beginning Balance |  |  | 0 | 0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax |  |  | (18) | 0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax |  |  | (1) | 0
Total other comprehensive (loss) income |  |  | (17) | 0
Accumulated Other Comprehensive Income (Loss), Ending Balance | (17) | 0 | (17) | 0
Accumulated Other Comprehensive Income (Loss) [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Total other comprehensive (loss) income |  |  | $ 10,912 | $ (20,728)

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