Quarterly report pursuant to Section 13 or 15(d)

Organization - Additional Information (Detail)

v2.4.0.8
Organization - Additional Information (Detail)
3 Months Ended
Mar. 31, 2013
Segment
Distributor
Organization And Description Of Business [Line Items]  
Number of geographic regions 6
Number of independent distributors 3,600,000
China [Member]
 
Organization And Description Of Business [Line Items]  
Number of independent distributors 200,000