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Investment in Unconsolidated Entities (Details 5) - USD ($)
$ in Thousands
3 Months Ended
Mar. 19, 2015
Mar. 31, 2015
Schedule of Equity Method Investments    
Amounts reclassified from accumulated other comprehensive income (loss)   $ (2,246)
Pre-Development Europe Projects Joint Venture    
Schedule of Equity Method Investments    
Aggregate cash received $ 19,000  
Gain on disposal of equity method investment 8,300  
Amounts reclassified from accumulated other comprehensive income (loss) $ 800