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% |

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