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Noncontrolling Interest (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Noncontrolling Interest [Abstract]          
Noncontrolling interest, ownership percentage by noncontrolling owners   25.00%      
Purchase of noncontrolling interest, total consideration   $ 5,200      
Purchase of noncontrolling interest, net of cash acquired   $ 1,000      
Net income (loss) attributable to noncontrolling interest $ 0   $ (11,542) $ 0 $ (11,657)