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	12 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 ($)	Mar. 31, 2018 USD ($) $ / shares	Mar. 31, 2023 USD ($) Days $ / shares	Mar. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2021 USD ($)	Sep. 30, 2021	Dec. 31, 2022 USD ($) Days $ / shares	Apr. 30, 2023 USD ($)	Jan. 01, 2022 USD ($)	Jun. 30, 2020 USD ($)
Debt Instrument [Line Items]
Outstanding principal amount												$ 2,652,500,000
Long-Term Debt												2,629,100,000						$ 2,692,000,000.0
Accumulated deficit												(1,175,200,000)	$ (59,100,000)					(1,204,500,000)
Borrowings under the senior secured credit facility												904,400,000						971,300,000
Interest expense												41,800,000	31,400,000
Paid-in-capital in excess of par value												191,300,000						188,700,000
Long-term debt												2,629,100,000						2,692,000,000.0
Letters of credit issued but undrawn												37,900,000
2.625% Convertible Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Outstanding principal amount											$ 550,000,000.0	262,500,000						262,500,000
Reduction to long term debt representing carrying value of convertible debt																		286,000,000.0
Deferred financing costs											12,900,000
Aggregate principal amount of convertible senior notes issued											550,000,000.0							277,500,000
Debt instrument , Purchase Price																		274,900,000
Loss on extinguishment of debt																		(12,800,000)
Long-Term Debt											$ 410,100,000									$ 59,100,000
Additional Paid in Capital																				136,700,000
Interest expense												1,800,000	4,200,000
Amortization of deferred financing costs												$ 300,000	500,000
Convertible notes, interest rate											2.625%	2.625%
Convertible notes maturity											Mar. 15, 2024	Mar. 15, 2024
Principal amount of convertible notes											$ 1,000	$ 1,000
Convertible notes conversion rate											16.0056	160,467.0000
Convertible notes conversion price \| $ / shares											$ 62.48	$ 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%									3.10%
Accrued interest																		1,700,000
Repurchase of convertible notes																		287,500,000
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												$ 1,100,000						1,300,000
Convertible senior notes, carrying value												261,400,000						261,200,000
Fair value of notes												249,400,000						243,300,000
2.625% Convertible Senior Notes Due 2024 [Member] \| Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs											$ 9,600,000
4.250% Convertible Senior Notes Due 2028 [Member]
Debt Instrument [Line Items]
Outstanding principal amount												277,500,000						277,500,000
Deferred financing costs																		8,500,000
Aggregate principal amount of convertible senior notes issued																		250,000,000.0
Convertible debt underwriters over allotment option fully exercised																		37,500,000
Interest expense												3,300,000
Amortization of deferred financing costs												$ 300,000
Additional principal amount of convertible notes																		$ 27,500,000
Convertible notes, interest rate												4.25%						4.25%
Convertible notes maturity												Jun. 15, 2028						Jun. 15, 2028
Principal amount of convertible notes																		$ 1,000,000,000
Convertible notes conversion rate																		58.8998
Convertible notes conversion price \| $ / shares																		$ 16.98
Effective interest rate on convertible notes																		4.90%
Fair value of liability to convertible notes												$ 332,000,000.0						$ 305,400,000
Convertible notes, conversion feature												Holders of the 2028 Convertible Notes may convert their notes at their option under the following circumstances: (i) during any calendar quarter commencing after the calendar quarter ending March 31, 2023, 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 2028 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 2028 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 2028 Convertible Notes for each such day; (iii) if the Company calls the 2028 Convertible Notes for redemption; or (iv) upon the occurrence of specified corporate events. On and after March 15, 2028, holders may convert their 2028 Convertible Notes at any time, regardless of the foregoing circumstances.
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%
Unamortized debt discount and debt issuance costs												$ 8,100,000						$ 8,400,000
Convertible senior notes, carrying value												269,400,000						269,100,000
7.875% Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Outstanding principal amount												600,000,000.0						600,000,000.0
Deferred financing costs												4,000,000.0						4,400,000			$ 7,900,000
Aggregate principal amount of convertible senior notes issued										$ 600,000,000.0
Interest expense												12,200,000	12,200,000
Amortization of deferred financing costs												$ 400,000	300,000
Convertible notes, interest rate										7.875%		7.875%
Convertible notes maturity										Sep. 01, 2025		Jan. 09, 2025
Carrying amount												$ 596,000,000.0						595,600,000
7.875% Senior Notes Due 2025 [Member] \| Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs																					$ 7,900,000
7.875% Senior Notes Due 2025 [Member] \| Level 2 [Member]
Debt Instrument [Line Items]
Fair value of notes												567,800,000						534,400,000
4.875% Senior Notes Due 2029 [Member]
Debt Instrument [Line Items]
Outstanding principal amount												600,000,000.0						600,000,000.0
Deferred financing costs																$ 7,700,000		6,400,000
Aggregate principal amount of convertible senior notes issued									$ 600,000,000.0
Interest expense												7,500,000	7,500,000
Amortization of deferred financing costs												$ 200,000	200,000
Convertible notes, interest rate									4.875%			4.875%
Convertible notes maturity									Jun. 01, 2029			Jan. 06, 2029
Unamortized debt discount and debt issuance costs												$ 6,200,000
Senior notes, redemption price, percentage									100.00%
Senior notes, redemption price percentage with equity offerings									104.875%
Carrying amount												593,800,000						593,600,000
Fair value of notes												459,400,000						412,500,000
4.875% Senior Notes Due 2029 [Member] \| Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs																$ 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												131,000,000.0	82,000,000.0
Borrowings under the senior secured credit facility																		$ 60,000,000.0
2018 Term Loan A [Member] \| 2018 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate			0.03%
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%
Debt Modification Costs																			$ 1,100,000
Deferred financing costs						$ 1,200,000	11,700,000					1,100,000
Credit facility, amount borrowed												71,000,000.0	82,000,000.0
Credit facility, amount repaid												$ 138,200,000	89,200,000
Long-term debt, weighted average interest rate												6.93%						4.08%
Borrowings under the senior secured credit facility												$ 908,400,000						$ 975,700,000
Interest expense												17,100,000	7,500,000
Non-cash interest expense												100,000	100,000
Amortization of deferred financing costs												500,000	500,000
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] \| 2024 Convertible Notes Exceeds 350 Million [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Outstanding principal amount												350,000,000.0
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																		60,000,000.0
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					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												252,200,000						257,600,000
2018 Credit Facility [Member] \| 2018 Term Loan A [Member] \| Level 2 [Member]
Debt Instrument [Line Items]
Outstanding principal amount												251,600,000						257,000,000.0
Debt instrument, fair value												250,600,000						250,000,000.0
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					$ 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												656,200,000						658,100,000
2018 Credit Facility [Member] \| 2018 Term Loan B [Member] \| Level 2 [Member]
Debt Instrument [Line Items]
Outstanding principal amount												652,800,000						654,300,000
Debt instrument, fair value												$ 652,100,000						$ 638,800,000
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
ASU 2020-06 [Member]
Debt Instrument [Line Items]
Accumulated deficit																				$ 77,600,000