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Discontinued Operations (Details) (USD $)
 0 Months Ended 3 Months Ended 6 Months Ended
Oct. 02, 2013
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Expenses          
Income from discontinued operations     $ 2,427,000 $ 0 $ 12,201,000
REAL
          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Cash paid at closing 60,000,000        
Loss on sale (8,800,000)        
Revenues          
Net investment income   0 1,161,000 0 1,153,000
Net foreign exchange (losses) gains   0 (153,000) 0 989,000
Other income   0 1,759,000 0 10,472,000
Net realized and unrealized losses on investments   0 (15,000) 0 (13,000)
Total revenues   0 2,752,000 0 12,601,000
Expenses          
Operational expenses   0 31,000 0 59,000
Corporate expenses   0 59,000 0 106,000
Total expenses   0 90,000 0 165,000
Income before taxes   0 2,662,000 0 12,436,000
Income tax expense   0 (236,000) 0 (236,000)
Income from discontinued operations   $ 0 $ 2,426,000 $ 0 $ 12,200,000