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 $)	3 Months Ended			1 Months Ended	3 Months Ended	1 Months Ended	3 Months Ended			1 Months Ended	3 Months Ended					3 Months Ended		1 Months Ended					1 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Feb. 28, 2014 Convertible Senior Notes [Member]	Mar. 31, 2014 Convertible Senior Notes [Member]	Feb. 28, 2014 Prepaid forward share repurchase transactions [Member]	Mar. 31, 2014 Prepaid forward share repurchase transactions [Member]	Feb. 28, 2014 Capped call transactions [Member]	Mar. 31, 2014 Debt Issuance Costs [Member] Convertible Senior Notes [Member]	Mar. 31, 2011 Senior Secured Credit Facility [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member]	Dec. 31, 2013 Senior Secured Credit Facility [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Senior secured revolving credit facility [Member]	Dec. 31, 2013 Senior Secured Credit Facility [Member] Senior secured revolving credit facility [Member]	Mar. 09, 2011 Senior Secured Credit Facility [Member] Senior secured revolving credit facility [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Senior secured revolving credit facility [Member] Maximum [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Senior secured revolving credit facility [Member] Minimum [Member]	Jul. 31, 2012 Senior Secured Credit Facility [Member] Term Loan [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Term Loan [Member]	Dec. 31, 2013 Senior Secured Credit Facility [Member] Term Loan [Member]	Jul. 26, 2012 Senior Secured Credit Facility [Member] Term Loan [Member]	Feb. 28, 2014 Senior Secured Credit Facility [Member] Convertible Senior Notes [Member]	Feb. 28, 2014 Senior Secured Credit Facility [Member] Convertible Notes [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option one [Member] Senior secured revolving credit facility [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option one [Member] Senior secured revolving credit facility [Member] Maximum [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option one [Member] Senior secured revolving credit facility [Member] Minimum [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option one [Member] Term Loan [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option one [Member] Term Loan [Member] Maximum [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option one [Member] Term Loan [Member] Minimum [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option two [Member] Senior secured revolving credit facility [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option two [Member] Senior secured revolving credit facility [Member] Maximum [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option two [Member] Senior secured revolving credit facility [Member] Minimum [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option two [Member] Term Loan [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option two [Member] Term Loan [Member] Maximum [Member]	Mar. 31, 2014 Senior Secured Credit Facility [Member] Interest rate option two [Member] Term Loan [Member] Minimum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount															$ 700,000,000						$ 500,000,000
Credit facility, maturity period											5 years
Credit facility, expiration date											Mar. 09, 2016
Interest rate spread on variable rate																									2.50%	1.50%		2.50%	1.50%		1.50%	0.50%		1.50%	0.50%
Variable rate basis																								LIBOR			LIBOR			The base rate under the Credit Facility represents the highest of the Federal Funds Rate plus 0.50%, one-month LIBOR plus 1.00%, and the prime rate offered by Bank of America.			Base rate
Base rate in excess of Federal Funds Rate																														0.50%
Base rate in excess of one-month LIBOR																														1.00%
Credit facility, unused capacity, commitment fee percentage																0.50%	0.25%
Credit facility borrowings used to repay outstanding borrowings										196,000,000								500,000,000
Deferred financing costs					21,500,000					5,700,000								4,500,000					2,300,000
Total principal amount of convertible notes				1,150,000,000	1,150,000,000																	1,150,000,000
Applicable margin payable, percentage																							0.50%
Consolidated leverage ratio																							2.50 to 1.00
Long-term debt, weighted average interest rate											3.16%	2.17%
Credit facility, amount repaid											18,800,000
Credit facility, amount outstanding	912,500,000		931,300,000								912,500,000	931,300,000	500,000,000	500,000,000					412,500,000	431,300,000
Foreign currency borrowings, outstanding											0	0
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, which we refer to as 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 our 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
Maximum percentage of conversion price for convertible notes				130.00%
Principal amount of convertible notes				1,000
Minimum percentage of conversion price for convertible notes				98.00%
Convertible notes initial conversion rate				11.5908
Convertible notes initial conversion price	$ 86.28			$ 86.28
Debt issuance costs					26,600,000
Additional paid-in capital	423,515,000		323,860,000	219,100,000			(31,900,000)		(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					214,200,000
Convertible senior notes, carrying value of liability component					935,800,000
Fair value of liability to convertible notes					871,000,000
Forward share repurchase transactions amount						685,800,000	685,800,000
Capped call transactions with financial institutions								123,800,000
Interest expense	17,800,000	6,800,000			8,800,000
Non-cash interest expense					4,900,000
Amortization of deferred financing costs					500,000
Aggregate annual maturities of credit facility, remainder of 2014					62,500,000
Aggregate annual maturities of credit facility, 2015					100,000,000
Aggregate annual maturities of credit facility, 2016					$ 750,000,000
Convertible senior notes due					2019