Quarterly report pursuant to Section 13 or 15(d)

Contingencies - Additional Information (Detail)

v3.24.3
Contingencies - Additional Information (Detail) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2024
Aug. 31, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Dec. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Loss Contingencies [Line Items]                
Other assets $ 352.1       $ 308.4      
Prepaid expenses and other current assets 244.8       237.7      
Assessment amount from tax administration service 16.0              
Undrawn letters of credit 143.1              
Surety bond through insurance company to guarantee payment of tax assessment 65.0              
Deductible for product liability insurance 12.5              
Surety Bond [Member]                
Loss Contingencies [Line Items]                
Surety bond through insurance company to guarantee payment of tax assessment $ 45.0              
SEC and DOJ Investigation [Member]                
Loss Contingencies [Line Items]                
Accrued liability             $ 123.0  
Loss contingency compliance self-reporting obligations term three-year              
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              
Audit Period Fiscal Year March 31, 2017 [Member]                
Loss Contingencies [Line Items]                
Assessment amount from tax administration service $ 17.4              
Audit Period Fiscal Year March 31 2018 [Member]                
Loss Contingencies [Line Items]                
Assessment amount from tax administration service 16.9              
Audit Period Fiscal Year March 31, 2020 [Member]                
Loss Contingencies [Line Items]                
Assessment amount from tax administration service 22.1              
Audit Period Fiscal Year March 31, 2021 [Member]                
Loss Contingencies [Line Items]                
Assessment amount from tax administration service 16.5              
State of Sao Paulo [Member] | Brazilian I C M S Two Thousand Thirteen [Member]                
Loss Contingencies [Line Items]                
Assessment amount from tax administration service 29.6              
State of Sao Paulo [Member] | Brazilian I C M S Two Thousand Fourteen [Member]                
Loss Contingencies [Line Items]                
Assessment amount from tax administration service 11.0              
Selling, General and Administrative Expenses [Member] | SEC and DOJ Investigation [Member]                
Loss Contingencies [Line Items]                
Accrued liability           $ 83.0   $ 40.0
Mexican Tax Administration Service [Member]                
Loss Contingencies [Line Items]                
Other assets 17.8              
Prepaid expenses and other current assets 10.6              
Other assets current and non current 7.2              
Assessment amount from tax administration service 22.2              
Brazilian ICMS [Member]                
Loss Contingencies [Line Items]                
Assessment amount from tax administration service 2.9              
Surety bond through insurance company to guarantee payment of tax assessment 11.7 $ 20.0            
Brazilian ICMS [Member] | State of Sao Paulo [Member]                
Loss Contingencies [Line Items]                
Assessment amount from tax administration service   $ 11.7 $ 16.2 $ 26.9 $ 42.5      
Brazilian ICMS [Member] | State of Rio de Janeiro [Member]                
Loss Contingencies [Line Items]                
Assessment amount from tax administration service 6.5              
Indian VAT Authorities [Member]                
Loss Contingencies [Line Items]                
Assessment amount from tax administration service $ 12.3