Annual report pursuant to Section 13 and 15(d)

Contingencies - Additional Information (Detail)

v3.22.0.1
Contingencies - Additional Information (Detail)
$ in Millions
 12 Months Ended
Aug. 23, 2018
Plaintiff
Dec. 31, 2021
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2020
USD ($)
Aug. 31, 2017
USD ($)
Jul. 31, 2016
USD ($)
Loss Contingencies [Line Items]              
Other assets   $ 313.2   $ 273.5      
Prepaid expenses and other current assets   187.7   145.7      
Deductible for product liability insurance   12.5          
Settlement amount   $ 12.5          
Putative Class Plaintiffs [Member]              
Loss Contingencies [Line Items]              
Number of plaintiffs | Plaintiff 4            
Pending Litigation due to Plaintiffs Arbitration [Member]              
Loss Contingencies [Line Items]              
Number of plaintiffs | Plaintiff 4            
SEC and DOJ Investigation [Member]              
Loss Contingencies [Line Items]              
Accrued liability         $ 123.0    
Loss contingency compliance self-reporting obligations term   three years          
Herbalife International of America, Inc., [Member] | U.S. Federal Trade Commission [Member]              
Loss Contingencies [Line Items]              
Settlement amount paid for consent order   $ 200.0          
Third-party monitoring by independent compliance auditor, period   7 years          
Federal Revenue Office of Brazil [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service   $ 9.9          
Selling, General and Administrative Expenses [Member] | SEC and DOJ Investigation [Member]              
Loss Contingencies [Line Items]              
Accrued liability     $ 40.0 $ 83.0      
Mexican Tax Administration Service [Member]              
Loss Contingencies [Line Items]              
Other assets current and non current   15.5          
Other assets   24.1          
Prepaid expenses and other current assets   8.6          
Mexican Tax Administration Service [Member] | Selling, General and Administrative Expenses [Member]              
Loss Contingencies [Line Items]              
Recognized loss related to tax matters     $ 19.0        
Brazilian ICMS [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service   5.2          
Surety bond through insurance company to guarantee payment of tax assessment   6.1          
Brazilian ICMS [Member] | State of Sao Paulo [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service           $ 10.7 $ 28.8
Brazilian ICMS [Member] | State of Rio de Janeiro [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service   6.3          
Indian VAT Authorities [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service   14.1          
Indian VAT Authorities [Member] | Audit Period Fiscal Year March 31, 2017 [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service   13.3          
Indian VAT Authorities [Member] | Audit Period Fiscal Year March 31, 2018 [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service   13.8          
South Korean Customs Authority [Member] | Other Noncurrent Assets [Member] | Audit Period January 2011 through May 2013 [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service   29.8          
South Korean Customs Authority [Member] | Other Noncurrent Assets [Member] | Audit Period May 2013 through December 2013 [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service   9.7          
South Korean Customs Authority [Member] | Other Noncurrent Assets [Member] | Audit Period January 2014 through December 2014 [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service   15.1          
South Korean Customs Authority [Member] | Other Noncurrent Assets [Member] | Audit Period January 2015 through December 2017 [Member]              
Loss Contingencies [Line Items]              
Assessment amount from tax administration service   $ 12.3