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Subsidiary Preferred Stock (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Subsidiary preferred stock  
Cash paid for redemption of preferred stock $ 70,875
Redemption of subsidiary preferred stock 1,688
Series A Preferred Stock
 
Subsidiary preferred stock  
Subsidiary preferred stock, shares outstanding 75,000
Regular dividends paid 750,000
Accrued dividends paid 108,750
Special dividends paid $ 375,000