Annual report pursuant to Section 13 and 15(d)

Inventories - Finished Goods Available for Resale (Detail)

v2.4.0.8
Inventories - Finished Goods Available for Resale (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Inventory [Line Items]    
Total $ 351,201 $ 339,411
Weight Management, Targeted Nutrition and Energy, Sports and Fitness [Member]
   
Inventory [Line Items]    
Total 307,200 303,800
Outer Nutrition [Member]
   
Inventory [Line Items]    
Total 15,300 17,500
Literature, Promotional and Other [Member]
   
Inventory [Line Items]    
Total $ 28,700 $ 18,100