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Property and Equipment (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]      
Land $ 8,813 $ 8,058  
Buildings 21,254 19,813  
Machinery and equipment 15,995 13,443  
Furniture and fixtures 6,446 5,131  
Leasehold and buildings improvement 4,656 4,229  
Software 17,505 29,796  
Total 74,669 80,470  
Accumulated Depreciation 36,390 45,176  
Prepayment and construction in progress 12,190 243  
Property, Plant and Equipment, Net 50,469 35,537 $ 30,195
Software      
Property, Plant and Equipment [Line Items]      
Accumulated Depreciation 14,421 25,807  
Buildings      
Property, Plant and Equipment [Line Items]      
Accumulated Depreciation 2,648 2,240  
Machinery and Equipment      
Property, Plant and Equipment [Line Items]      
Accumulated Depreciation 11,983 10,573  
Furniture and Fixtures      
Property, Plant and Equipment [Line Items]      
Accumulated Depreciation 3,980 3,492  
Leasehold and buildings improvement      
Property, Plant and Equipment [Line Items]      
Accumulated Depreciation $ 3,358 $ 3,064