XML 70 R50.htm IDEA: XBRL DOCUMENT v2.4.0.8
Estimated Useful Lives of Assets (Detail)
12 Months Ended
Dec. 31, 2013
Building
 
Property, Plant and Equipment [Line Items]  
Estimated useful lives 40 years
Office furniture and fixtures
 
Property, Plant and Equipment [Line Items]  
Estimated useful lives 8 years
Laboratory equipment
 
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years
Motor vehicles
 
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years
Computer equipment and software | Minimum
 
Property, Plant and Equipment [Line Items]  
Estimated useful lives 2 years
Computer equipment and software | Maximum
 
Property, Plant and Equipment [Line Items]  
Estimated useful lives 8 years