Annual report pursuant to Section 13 and 15(d)

Quarterly Information - Quarterly Net Income, Basic Earnings Per Share and Diluted Earnings Per Share (Parenthetical) (Detail)

v2.4.1.9
Quarterly Information - Quarterly Net Income, Basic Earnings Per Share and Diluted Earnings Per Share (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]    
Increased in operating income by pre-tax amount   $ 16.6hlf_IncreaseDecreaseInOperatingIncome
Increase in net income, net of tax $ 12.0hlf_IncreaseInNetIncomeNetOfTax