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Property, Plant and Equipment - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment [Abstract]    
Disposals in period $ 2,285 $ 2,620
Buildings include rental property 5,750 5,750
Accumulated depreciation $ 2,775 $ 2,627