Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity Reclassifications out of Accumulated Other Comprehensive Income (Details)

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Stockholders' Equity Reclassifications out of Accumulated Other Comprehensive Income (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Gain (Loss) on Investments, Excluding Other than Temporary Impairments     $ (967) $ 77,653
Reclassification out of Accumulated Other Comprehensive Income [Member]
       
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net 0 1,426 212 1,662
Gain (Loss) on Investments, Excluding Other than Temporary Impairments (20,952) (45,143) 22,228 (63,918)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest $ (20,952) $ (43,717) $ 22,440 $ (62,256)