XML 85 R56.htm IDEA: XBRL DOCUMENT v3.3.1.900
Plant and Equipment - Plant and Equipment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment [Abstract]    
Plant and equipment at cost $ 92,203 $ 89,759
Construction in process 1,074 457
Less accumulated depreciation (32,038) (30,123)
Total plant and equipment, net $ 61,239 $ 60,093