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Redeemable Noncontrolling Interest (Details) (USD $)
In Thousands, unless otherwise specified
2 Months Ended 3 Months Ended 6 Months Ended
Mar. 11, 2014
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Redeemable Noncontrolling Interest [Line Items]            
Distributions to noncontrolling interests $ (580)          
Net income attributable to redeemable noncontrolling interests 810 0 910 810 1,770  
Redeemable noncontrolling interest, ending balance $ 29,710 $ 0   $ 0   $ 29,480