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

Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Detail)

Long-Term Debt - Additional Information (Detail)								1 Months Ended					3 Months Ended				6 Months Ended		9 Months Ended
Long-Term Debt - Additional Information (Detail)	Mar. 19, 2025	Sep. 15, 2023	Jul. 30, 2021 USD ($)	Feb. 10, 2021	Mar. 19, 2020 USD ($)	Dec. 12, 2019 USD ($)	Aug. 16, 2018 USD ($)	Jul. 30, 2021 USD ($)	May 31, 2021 USD ($)	May 31, 2020 USD ($)	Aug. 31, 2018 USD ($)	Mar. 31, 2018 USD ($) $ / shares	Sep. 30, 2022 USD ($) $ / shares	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2022 USD ($) Days	Jun. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) $ / shares	Sep. 30, 2021 USD ($)	Mar. 31, 2022 USD ($)	Jan. 01, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2020 USD ($)	Sep. 30, 2018 USD ($)
Debt Instrument [Line Items]
Outstanding principal amount													$ 2,774,000,000.0						$ 2,774,000,000.0
Credit facility, amount borrowed																				$ 531,200,000
Loss on extinguishment of debt																			0	24,600,000
Long-Term Debt													2,754,500,000						2,754,500,000				$ 2,762,600,000
Retained Earnings (Accumulated Deficit)													(1,258,700,000)						(1,258,700,000)			$ 77,600,000	(1,169,000,000.0)
Borrowings under the senior secured credit facility													1,018,100,000						1,018,100,000				1,088,600,000
Interest expense													35,900,000	$ 38,800,000					100,500,000	115,500,000
Paid-in-capital in excess of par value													181,000,000.0						181,000,000.0				318,100,000
Long-term debt													2,754,500,000						2,754,500,000				2,762,600,000
Letters of credit issued but undrawn													24,200,000						24,200,000
2.625% Convertible Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Outstanding principal amount												$ 550,000,000.0	550,000,000.0						550,000,000.0				550,000,000.0
Deferred financing costs												12,900,000
Aggregate principal amount of convertible senior notes issued												550,000,000.0
Long-Term Debt												$ 410,100,000										59,100,000
Additional Paid in Capital																						136,700,000
Interest expense													4,200,000	10,000,000.0					12,500,000	29,600,000
Non-cash interest expense													0	6,000,000.0					0	17,600,000
Amortization of deferred financing costs													$ 600,000	400,000					$ 1,700,000	1,200,000
Convertible notes, interest rate												2.625%	2.625%						2.625%
Convertible notes maturity												Mar. 15, 2024							May 15, 2024
Principal amount of convertible notes												$ 1,000					$ 1,000		$ 1,000
Convertible notes conversion rate												16.0056							160,467.0000
Convertible notes conversion price \| $ / shares												$ 62.48	$ 62.32						$ 62.32
Paid-in-capital in excess of par value												$ 139,900,000
Long-term debt												$ 410,100,000										$ 59,100,000
Effective interest rate on convertible notes												8.40%
Fair value of liability to convertible notes																							547,400,000
Convertible notes, conversion feature																			Holders of the 2024 Convertible Notes may convert their notes at their option under the following circumstances: (i) during any calendar quarter commencing after the calendar quarter ending June 30, 2018, if the last reported sale price of the Company’s common shares for at least 20 trading days (whether or not consecutive) in a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter exceeds 130% of the conversion price for the 2024 Convertible Notes on each applicable trading day; (ii) during the five business-day period immediately after any five consecutive trading day period, or the measurement period, in which the trading price per $1,000 principal amount of 2024 Convertible Notes for each trading day of that measurement period was less than 98% of the product of the last reported sale price of the Company’s common shares and the conversion rate for the 2024 Convertible Notes for each such day; (iii) if the Company calls the 2024 Convertible Notes for redemption; or (iv) upon the occurrence of specified corporate events. On and after December 15, 2023, holders may convert their 2024 Convertible Notes at any time, regardless of the foregoing 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.
Convertible notes, number of trading days of threshold limit (whether or not consecutive) \| Days																	20
Convertible notes, number of trading days of threshold limit in consecutive days \| Days																	30
Minimum percentage of common share price over conversion price for conversion												130.00%
Minimum percentage of the product of common share price and conversion rate for convertible notes												98.00%
Deferred financing costs recorded as additional paid-in-capital in excess of par value												$ 3,300,000
Unamortized debt discount and debt issuance costs													$ 3,300,000						$ 3,300,000				64,000,000.0
Convertible senior notes, carrying value of liability component													546,700,000						546,700,000				486,000,000.0
Fair value of notes													500,300,000						500,300,000
2.625% Convertible Senior Notes Due 2024 [Member] \| Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs												$ 9,600,000
7.875% Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Outstanding principal amount													600,000,000.0						600,000,000.0				600,000,000.0
Deferred financing costs													4,800,000						4,800,000				5,800,000	$ 7,900,000
Aggregate principal amount of convertible senior notes issued										$ 600,000,000.0
Interest expense													12,200,000	12,100,000					36,500,000	36,400,000
Amortization of deferred financing costs													$ 400,000	400,000					$ 1,100,000	1,000,000.0
Convertible notes, interest rate										7.875%			7.875%						7.875%
Convertible notes maturity										Sep. 01, 2025									Jan. 09, 2025
Carrying amount													$ 595,200,000						$ 595,200,000				594,200,000
Fair value of notes													545,500,000						545,500,000				639,700,000
7.875% Senior Notes Due 2025 [Member] \| Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs																								$ 7,900,000
7.250% Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Deferred financing costs																									$ 5,400,000
Aggregate principal amount of convertible senior notes issued											$ 400,000,000.0
Proceed to redeem senior notes									$ 400,000,000.0
Credit facility, amount borrowed									428,500,000
Loss on extinguishment of debt															$ (24,600,000)
Interest expense																				11,500,000
Amortization of deferred financing costs																				200,000
Convertible notes, interest rate											7.25%
Convertible notes maturity											Aug. 15, 2026
Accrued interest									7,700,000
7.250% Senior Notes Due 2026 [Member] \| Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs																									$ 5,400,000
4.875% Senior Notes Due 2029 [Member]
Debt Instrument [Line Items]
Outstanding principal amount													600,000,000.0						600,000,000.0				600,000,000.0
Deferred financing costs													6,600,000		7,700,000			$ 7,700,000	6,600,000				7,200,000
Aggregate principal amount of convertible senior notes issued									$ 600,000,000.0
Interest expense													7,600,000	7,500,000					22,600,000	10,900,000
Amortization of deferred financing costs													$ 200,000	200,000					$ 600,000	300,000
Convertible notes, interest rate									4.875%				4.875%						4.875%
Convertible notes maturity									Jun. 01, 2029										Jan. 06, 2029
Senior notes, redemption price, percentage									100.00%
Senior notes, redemption price percentage with equity offerings									104.875%
Carrying amount													$ 593,400,000						$ 593,400,000				592,800,000
Fair value of notes													429,800,000						429,800,000				588,900,000
4.875% Senior Notes Due 2029 [Member] \| Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs															$ 7,700,000			$ 7,700,000
4.875% Senior Notes Due 2029 [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Percentage of aggregate principal amount of senior notes being redeemed									40.00%
Eurodollar [Member]
Debt Instrument [Line Items]
Base rate interest rate floor							0.00%
2018 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, amount repaid																			483,000,000.0	340,000,000.0
Borrowings under the senior secured credit facility													$ 100,000,000.0						100,000,000.0				$ 150,000,000.0
2018 Term Loan A [Member] \| 2018 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate			0.03%
2018 Term Loan B [Member]
Debt Instrument [Line Items]
Credit facility, amount repaid																				60,000,000.0
2017 Credit Facility [Member] \| 2017 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Repayment of prior senior secured credit facility							$ 1,178,100,000
2018 Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount							1,250,000,000
Commitment Fee Percentage								0.35%
Deferred financing costs						$ 1,200,000	11,700,000														$ 1,100,000
Credit facility, amount borrowed																			433,000,000.0	490,000,000.0
Credit facility, amount repaid																			$ 504,700,000	415,800,000
Long-term debt, weighted average interest rate													3.46%						3.46%				2.62%
Borrowings under the senior secured credit facility													$ 1,022,900,000						$ 1,022,900,000				$ 1,094,600,000
Interest expense													12,600,000	8,900,000					29,500,000	26,100,000
Non-cash interest expense													100,000	100,000					200,000	300,000
Amortization of deferred financing costs													400,000	900,000					1,400,000	$ 1,800,000
2018 Credit Facility [Member] \| 2024 Convertible Notes Exceeds 350 Million [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Outstanding principal amount					$ 350,000,000.0		$ 350,000,000.0
2018 Credit Facility [Member] \| Second Amendment [Member]
Debt Instrument [Line Items]
Debt Modification Costs			$ 1,400,000		1,600,000			$ 1,400,000
Deferred financing costs					$ 1,100,000												$ 800,000
Credit facility amendment date					Mar. 19, 2020
Recognized in interest expense, net														$ 600,000		$ 500,000
2018 Credit Facility [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Base rate interest rate floor							1.00%
2018 Credit Facility [Member] \| Federal Funds Rate [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate							0.50%
2018 Credit Facility [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate							1.00%
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount							$ 250,000,000.0
Borrowings under the senior secured credit facility													100,000,000.0						100,000,000.0				150,000,000.0
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.25%				0.25%
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.35%				0.35%
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Second Amendment [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount					$ 250,000,000.0
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Second Amendment [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount																					282,500,000
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Fourth Amendment Member \| Minimum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount			$ 282,500,000					282,500,000
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Fourth Amendment Member \| Maximum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount																	$ 330,000,000.0
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Eurodollar [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate			1.75%
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Eurodollar [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate			2.25%
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Eurodollar [Member] \| Second Amendment [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																		2.50%
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Base Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate			0.75%
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Base Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate			1.25%
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Base Rate [Member] \| Second Amendment [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																				1.50%
2018 Credit Facility [Member] \| 2018 Revolving Credit Facility [Member] \| Base Rate [Member] \| Second Amendment [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																	1.25%
2018 Credit Facility [Member] \| 2018 Term Loan A [Member]
Debt Instrument [Line Items]
Outstanding principal amount							$ 250,000,000.0
Borrowings under the senior secured credit facility													262,900,000						262,900,000				279,000,000.0
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| Level 2 [Member]
Debt Instrument [Line Items]
Outstanding principal amount													262,200,000						262,200,000				278,100,000
Debt instrument, fair value													252,700,000						252,700,000				278,000,000.0
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| 2024 Convertible Notes Exceeds 350 Million [Member]
Debt Instrument [Line Items]
Credit facility, maturity date		Sep. 15, 2023
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| Second Amendment [Member]
Debt Instrument [Line Items]
Extended maturity date	Mar. 19, 2025
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| Second Amendment [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount					$ 234,400,000
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| Second Amendment [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount																					$ 264,800,000
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| Fourth Amendment Member \| Minimum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount			$ 245,000,000.0					$ 245,000,000.0
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| Fourth Amendment Member \| Maximum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount																	$ 286,200,000
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| Eurodollar [Member] \| Second Amendment [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate							1.75%
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| Eurodollar [Member] \| Second Amendment [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																	2.25%
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| Base Rate [Member] \| Second Amendment [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate							0.75%
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| 2018 Revolving Credit Facility [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate			2.50%		3.00%
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| 2018 Revolving Credit Facility [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate			1.50%		2.00%
2018 Credit Facility [Member] \| 2018 Term Loan B [Member]
Debt Instrument [Line Items]
Outstanding principal amount							$ 750,000,000.0
Credit facility, maturity date							Aug. 18, 2025
Senior secured credit facility, discount percentage							0.25%
Senior secured credit facility, discount amount							$ 1,900,000
Borrowings under the senior secured credit facility													660,000,000.0						660,000,000.0				665,600,000
2018 Credit Facility [Member] \| 2018 Term Loan B [Member] \| Level 2 [Member]
Debt Instrument [Line Items]
Outstanding principal amount													655,900,000						655,900,000				660,500,000
Debt instrument, fair value													$ 634,400,000						$ 634,400,000				$ 663,100,000
2018 Credit Facility [Member] \| 2018 Term Loan B [Member] \| 2024 Convertible Notes Exceeds 350 Million [Member]
Debt Instrument [Line Items]
Credit facility, maturity date							Dec. 15, 2023
2018 Credit Facility [Member] \| 2018 Term Loan B [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate				2.75%		2.75%	3.25%
2018 Credit Facility [Member] \| 2018 Term Loan B [Member] \| Eurodollar [Member] \| Third Amendment [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																		2.50%
2018 Credit Facility [Member] \| 2018 Term Loan B [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate				1.75%		1.75%	2.25%
2018 Credit Facility [Member] \| 2018 Term Loan B [Member] \| Base Rate [Member] \| Third Amendment [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																				1.50%
2018 Credit Facility [Member] \| 2018 Term Loan B [Member] \| 2018 Revolving Credit Facility [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate							2.50%
2018 Credit Facility [Member] \| 2018 Term Loan B [Member] \| 2018 Revolving Credit Facility [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate							1.50%
Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount of convertible senior notes issued							$ 400,000,000.0