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Contingencies - Additional Information (Detail) $ in Millions |  | 1 Months Ended | 9 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 23, 2018 Plaintiff | Oct. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Dec. 31, 2019 USD ($) | Aug. 31, 2017 USD ($) | Jul. 31, 2016 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Other assets |  |  | $ 269.2 | $ 313.2 |  |  |  |  |
Prepaid expenses and other current assets |  |  | 229.2 | $ 187.7 |  |  |  |  |
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-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 |  |  | $ 17.7 |  |  |  |  |  |
Federal Revenue Office of Brazil [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Assessment amount from tax administration service |  |  | 3.8 |  |  |  |  |  |
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 |  |  | 16.4 |  |  |  |  |  |
Prepaid expenses and other current assets |  |  | 1.7 |  |  |  |  |  |
Other assets current and non current |  |  | 14.7 |  |  |  |  |  |
Brazilian ICMS [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Assessment amount from tax administration service |  |  | 1.9 |  |  |  |  |  |
Surety bond through insurance company to guarantee payment of tax assessment |  |  | 10.3 |  |  |  |  |  |
Brazilian ICMS [Member] | State of Sao Paulo [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Assessment amount from tax administration service |  |  |  |  |  |  |  | $ 11.0 | $ 29.7
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 |  |  | 12.6 |  |  |  |  |  |
Indian VAT Authorities [Member] | Audit Period Fiscal Year March 31 2018 [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Assessment amount from tax administration service |  |  | 17.3 |  |  |  |  |  |
South Korean Customs Authority [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Refund Assessed Amount |  | $ 24.6 |  |  |  |  |  |  |
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 |  |  | 24.6 |  |  |  |  |  |
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 |  |  | 8.0 |  |  |  |  |  |
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 |  |  | 12.5 |  |  |  |  |  |
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 |  |  | $ 10.1 |  |  |  |  |  |

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