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Redeemable Noncontrolling Interest (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Redeemable Noncontrolling Interest [Roll Forward]    
Redeemable noncontrolling interest, beginning of period $ 2,665  
Net income (loss) attributable to redeemable noncontrolling interest (8) $ 14
Other comprehensive income (loss) attributable to redeemable noncontrolling interest 112  
Redeemable noncontrolling interest, end of period $ 2,769 $ 2,911