Herbalife Ltd. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Convertible Senior Notes due 2024 - Additional Information (Detail)

Long-Term Debt - Convertible Senior Notes due 2024 - Additional Information (Detail)		1 Months Ended		3 Months Ended		12 Months Ended
	Mar. 15, 2024 USD ($)	Aug. 31, 2023 USD ($)	Mar. 31, 2018 USD ($) $ / shares	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($) $ / shares	Jan. 01, 2022 USD ($)
Debt Instrument [Line Items]
Outstanding principal amount				$ 2,424,700,000
Long-term debt				2,407,900,000			$ 2,562,400,000
Paid-in capital in excess of par value				244,200,000			233,900,000
Retained earnings (accumulated deficit)				(1,038,000,000)			$ (1,062,300,000)
Interest expense				$ 41,600,000	$ 41,800,000
2.625% Convertible Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Aggregate principal amount of senior notes issued		$ 65,500,000	$ 550,000,000			$ 277,500,000
Convertible notes, interest rate			2.625%	2.625%
Convertible notes maturity			Mar. 15, 2024	Mar. 15, 2024
Convertible notes, conversion feature				On and after December 15, 2023, holders could convert their 2024 Convertible Notes at any time, regardless of the circumstances. In December 2021, the Company made an irrevocable election under the indenture governing the 2024 Convertible Notes to require the principal portion of the 2024 Convertible Notes to be settled in cash and any excess in shares or cash.
Principal amount of convertible notes				$ 1,000,000,000
Convertible notes conversion rate			16.0056	160,467.0000
Convertible notes conversion price \| $ / shares			$ 62.48				$ 62.32
Outstanding principal amount			$ 550,000,000				$ 197,000,000
Long-term debt			410,100,000					$ 59,100,000
Paid-in capital in excess of par value			$ 139,900,000
Effective interest rate on convertible notes			8.40%					3.10%
Deferred financing costs			$ 12,900,000
Deferred financing costs recorded as additional paid-in-capital in excess of par value			3,300,000
Additional Paid in Capital								$ 136,700,000
Repurchase of convertible notes						287,500,000
Debt instrument , Purchase Price		65,100,000				274,900,000
Accrued interest		800,000				1,700,000
Reduction to long term debt representing carrying value of convertible debt	$ 197,000,000	65,300,000				$ 286,000,000
Gain on extinguishment of debt		$ 1,000,000		$ 12,800,000
Repayment of debt	197,000,000
Accrued interest on debt	$ 2,600,000
Unamortized debt discount and debt issuance costs							200,000
Convertible senior notes, carrying value				0			196,800,000
Fair value of notes							$ 196,200,000
Interest expense				1,200,000	1,800,000
Amortization of deferred financing costs				$ 200,000	$ 300,000
2.625% Convertible Senior Notes Due 2024 [Member] \| Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs			$ 9,600,000
ASU 2020-06 [Member]
Debt Instrument [Line Items]
Retained earnings (accumulated deficit)								$ 77,600,000