Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.8
Subsequent Events - Additional Information (Detail)
Share data in Millions, except Per Share data, unless otherwise specified
1 Months Ended 12 Months Ended 1 Months Ended 1 Months Ended 2 Months Ended 2 Months Ended
Jul. 31, 2012
Jun. 30, 2012
Dec. 31, 2012
USD ($)
Dec. 31, 2011
USD ($)
Dec. 31, 2010
USD ($)
Dec. 31, 2009
USD ($)
Jan. 31, 2010
Previous CADIVI Rate [Member]
VEF
Dec. 31, 2012
Herbalife Venezuela [Member]
USD ($)
Dec. 31, 2011
Herbalife Venezuela [Member]
USD ($)
Feb. 19, 2013
Subsequent Event [Member]
USD ($)
Feb. 28, 2013
Subsequent Event [Member]
USD ($)
Feb. 28, 2013
Subsequent Event [Member]
SITME Rate [Member]
Feb. 28, 2013
Subsequent Event [Member]
Previous CADIVI Rate [Member]
VEF
Feb. 28, 2013
Subsequent Event [Member]
New CADIVI Rate [Member]
VEF
Feb. 28, 2013
Subsequent Event [Member]
CADIVI Rate [Member]
Feb. 19, 2013
Subsequent Event [Member]
Senior secured revolving credit facility [Member]
USD ($)
Dividends declared per share     $ 1.20 $ 0.73 $ 0.45         $ 0.30            
Cash dividends, date payable                   Mar. 19, 2013            
Cash dividends, record date                   Mar. 05, 2013            
Unused available credit                               $ 195,200,000
Senior secured credit facility outstanding     487,500,000 202,000,000           987,500,000           500,000,000
Repurchase of common stock 3.9 5.3 11.0 5.5 5.7           4.0          
Shares repurchased through open market purchases, aggregate cost     527,800,000 298,800,000 150,100,000           162,400,000          
Average cost per share of shares repurchased     $ 47.78 $ 54.27 $ 26.13           $ 40.61          
SITME Rate for remeasurement                       5.3        
CADIVI rate             4.3           4.3 6.3    
Net monetary Bolivars denominated assets and liabilities               82,900,000 26,800,000              
Cash and cash equivalents     $ 333,534,000 $ 258,775,000 $ 190,550,000 $ 150,801,000   $ 99,200,000 $ 34,800,000              
Percent by which currency exchange rate was less favorable than SITME                             16.00%