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) - USD ($)			1 Months Ended			3 Months Ended				6 Months Ended
	Sep. 30, 2015	May 04, 2015	Feb. 28, 2014	Jul. 31, 2012	Mar. 31, 2011	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Mar. 31, 2014	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Jul. 26, 2012	Mar. 09, 2011
Debt Instrument [Line Items]
Deferred financing costs		$ 6,200,000
Allowable annual dividend payment or repurchase of common stock under credit facility										$ 233,000,000
Credit facility terms description										The Credit Facility restricts the Company’s ability to pay dividends or repurchase its common shares to a maximum of $233.0 million until maturity and for every one dollar of share repurchase or dividend paid, the revolving credit facility’s borrowing capacity is permanently decreased by two dollars.
Borrowings under the senior secured credit facility						$ 410,000,000				$ 410,000,000		$ 639,500,000
Paid-in-capital in excess of par value						457,300,000				457,300,000		438,200,000
Long-term debt						1,426,600,000				1,426,600,000		1,622,000,000
Convertible senior notes, carrying value of liability Component						1,003,300,000				1,003,300,000		982,500,000
Interest expense						24,600,000		$ 24,800,000		50,600,000	$ 48,200,000
Letters of credit issued but undrawn						40,400,000				40,400,000
Prepaid forward share repurchase transactions [Member]
Debt Instrument [Line Items]
Paid-in-capital in excess of par value									$ 31,900,000
Forward share repurchase transactions amount			$ 685,800,000						685,800,000
Capped call transactions [Member]
Debt Instrument [Line Items]
Capped call transactions with financial institutions			123,800,000
Term Loan [Member]
Debt Instrument [Line Items]
Credit facility, amount repaid							$ 229,700,000
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Deferred financing costs									26,600,000
Total principal amount of convertible notes						1,150,000,000				1,150,000,000		1,150,000,000
Paid-in-capital in excess of par value			219,100,000						5,100,000
Proceeds received from the issuance of the Convertible notes			1,150,000,000
Long-term debt			$ 930,900,000
Effective interest rate on convertible notes			6.20%
Unamortized debt discount and debt issuance costs						146,700,000				146,700,000		167,600,000
Convertible senior notes, carrying value of liability Component						1,003,300,000				1,003,300,000		982,500,000
Fair value of liability to convertible notes						957,500,000				957,500,000		$ 795,900,000
Interest expense						16,200,000		15,600,000		32,300,000	30,800,000
Non-cash interest expense						9,600,000		8,900,000		19,000,000	17,700,000
Amortization of deferred financing costs						$ 1,000,000		$ 1,000,000		$ 1,900,000	$ 1,900,000
Convertible Senior Notes [Member] \| Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs									$ 21,500,000
Convertible Debt [Member]
Debt Instrument [Line Items]
Total principal amount of convertible notes			$ 1,150,000,000
Aggregate principal amount of convertible senior notes issued			1,000,000,000
Additional principal amount of convertible notes			$ 150,000,000
Convertible notes, interest rate			2.00%
Convertible notes maturity			Aug. 15, 2019
Convertible notes, conversion feature										Holders of the 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, 2014, 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 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 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 Convertible Notes for each such day; or (iii) upon the occurrence of specified corporate events. On and after May 15, 2019, holders may convert their Convertible Notes at any time, regardless of the foregoing circumstances.
Convertible notes, number of trading days of threshold limit (whether or not consecutive)										20 days
Convertible notes, number of trading days of threshold limit in consecutive days										30 days
Minimum percentage of common share price over conversion price for conversion			130.00%
Principal amount of convertible notes			$ 1,000
Minimum percentage of the product of common share price and conversion rate for convertible notes			98.00%
Convertible notes initial conversion rate			11.5908
Convertible notes initial conversion price						$ 86.28		$ 86.28		$ 86.28	$ 86.28
Convertible Debt [Member] \| Capped call transactions [Member]
Debt Instrument [Line Items]
Convertible notes initial conversion price			$ 86.28
Senior secured revolving credit facility [Member]
Debt Instrument [Line Items]
Amount required to maintain on consolidated cash and cash equivalents										$ 200,000,000
Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility borrowings used to repay outstanding borrowings					$ 196,000,000
Deferred financing costs					$ 5,700,000
Credit facility amendment date										May 04, 2015
Credit facility interest rate description										After March 9, 2016, the applicable interest rates on the Company’s borrowings under the Credit Facility increased by 2.00% such that borrowings under the Credit Facility now bear interest at either LIBOR plus the applicable margin between 4.00% and 5.00% or the base rate plus the applicable margin between 3.00% and 4.00%
Long-term debt, weighted average interest rate						3.87%				3.87%		2.78%
Credit facility, amount repaid						$ 0
Borrowings under the senior secured credit facility												$ 639,700,000
Foreign currency borrowings, outstanding						0				$ 0		0
Aggregate annual maturity of credit facility, 2017						410,000,000				410,000,000
Aggregate annual maturity of credit facility, 2019						1,150,000,000				$ 1,150,000,000
Senior Secured Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage										0.40%
Senior Secured Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage										0.50%
Senior Secured Credit Facility [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Variable rate basis										Facility increased by 2.00% such that borrowings under the Credit Facility now bear interest at either LIBOR plus the applicable margin between 4.00% and 5.00% or the base rate plus the applicable margin between 3.00% and 4.00%
Senior Secured Credit Facility [Member] \| Until March 9, 2016 [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate increase by percentage		0.50%
Senior Secured Credit Facility [Member] \| After March 9, 2016 [Member]
Debt Instrument [Line Items]
Interest rate increased by percentage		2.00%
Senior Secured Credit Facility [Member] \| After March 9, 2016 [Member] \| LIBOR [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate		4.00%
Senior Secured Credit Facility [Member] \| After March 9, 2016 [Member] \| LIBOR [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate		5.00%
Senior Secured Credit Facility [Member] \| After March 9, 2016 [Member] \| Base Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate		3.00%
Senior Secured Credit Facility [Member] \| After March 9, 2016 [Member] \| Base Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate		4.00%
Senior Secured Credit Facility [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount													$ 500,000,000
Credit facility borrowings used to repay outstanding borrowings				$ 500,000,000
Deferred financing costs				$ 4,500,000
Credit facility prepayments		$ 20,300,000
Borrowings under the senior secured credit facility												229,700,000
Senior Secured Credit Facility [Member] \| Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Total principal amount of convertible notes			$ 1,150,000,000
Senior Secured Credit Facility [Member] \| Convertible Debt [Member]
Debt Instrument [Line Items]
Deferred financing costs			$ 2,300,000
Applicable margin payable, percentage			0.50%
Consolidated leverage ratio										2.50 to 1.00
Senior Secured Credit Facility [Member] \| Senior secured revolving credit facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount						425,000,000				$ 425,000,000				$ 700,000,000
Line of credit facility extended maturity period										1 year
Credit facility prepayments		$ 50,900,000
Amended maturity date of credit facility		Mar. 09, 2017
Decreased amount in credit facility borrowing capacity	$ (39,100,000)	$ (235,900,000)
Borrowings under the senior secured credit facility						$ 410,000,000				$ 410,000,000		$ 410,000,000
Senior Secured Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Credit facility LIBOR minimum floor rate interest		0.25%
Senior Secured Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Variable rate basis										The base rate under the Credit Facility represents the highest of the Federal Funds Rate plus 0.50%, the one-month LIBOR plus 1.00%, and the prime rate offered by Bank of America.
Base rate in excess of Federal Funds Rate										0.50%
Base rate in excess of one-month LIBOR										1.00%