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

Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

Subsequent Events - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended	0 Months Ended
	May 04, 2015	Mar. 31, 2015	Mar. 10, 2016	Sep. 30, 2015	Mar. 09, 2011
Subsequent Event [Member]
Subsequent Event [Line Items]
Allowable annual dividend payment or repurchase of common stock under credit facility	$ 233.0
Debt issuance cost	7.0
Senior Secured Credit Facility [Member]
Subsequent Event [Line Items]
Credit facility, expiration date		Mar. 09, 2016
Variable rate basis		Credit Facility will 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%.
Credit facility amendment date		May 04, 2015
Credit facility interest rate description		Until March 9, 2016, the interest rates on the Company’s borrowings under the Credit Facility, as amended, will effectively remain unchanged except that the minimum applicable margin will be increased by 0.50%. After March 9, 2016, the applicable interest rates on the Company’s borrowings under the Credit Facility, as amended, will increase by 2.00% such that borrowings under the Credit Facility will 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] \| Senior secured revolving credit facility [Member]
Subsequent Event [Line Items]
Credit facility, maximum amount		700.0			700.0
Senior Secured Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| LIBOR [Member]
Subsequent Event [Line Items]
Variable rate basis		LIBOR
Senior Secured Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| LIBOR [Member] \| Minimum [Member]
Subsequent Event [Line Items]
Interest rate spread on variable rate		1.50%
Senior Secured Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| LIBOR [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Interest rate spread on variable rate		2.50%
Senior Secured Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| Base Rate [Member]
Subsequent Event [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.
Senior Secured Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| Base Rate [Member] \| Minimum [Member]
Subsequent Event [Line Items]
Interest rate spread on variable rate		0.50%
Senior Secured Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| Base Rate [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Interest rate spread on variable rate		1.50%
Senior Secured Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Interest rate spread on variable rate increase by percentage	0.50%
Senior Secured Credit Facility [Member] \| Subsequent Event [Member] \| LIBOR [Member] \| Minimum [Member]
Subsequent Event [Line Items]
Interest rate spread on variable rate	4.00%
Senior Secured Credit Facility [Member] \| Subsequent Event [Member] \| LIBOR [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Interest rate spread on variable rate	5.00%
Senior Secured Credit Facility [Member] \| Subsequent Event [Member] \| Base Rate [Member] \| Minimum [Member]
Subsequent Event [Line Items]
Interest rate spread on variable rate	3.00%
Senior Secured Credit Facility [Member] \| Subsequent Event [Member] \| Base Rate [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Interest rate spread on variable rate	4.00%
Senior Secured Credit Facility [Member] \| Subsequent Event [Member] \| Senior secured revolving credit facility [Member]
Subsequent Event [Line Items]
Credit facility, expiration date	Mar. 09, 2017
Credit facility prepayments	50.9
Decreased amount in credit facility borrowing capacity	235.9
Senior Secured Credit Facility [Member] \| Subsequent Event [Member] \| Term Loan [Member]
Subsequent Event [Line Items]
Term loan maturity date	Mar. 09, 2016
Credit facility prepayments	20.3
Scenario, Forecast [Member] \| Senior Secured Credit Facility [Member]
Subsequent Event [Line Items]
Interest rate increased by percentage			2.00%
Scenario, Forecast [Member] \| Senior Secured Credit Facility [Member] \| Senior secured revolving credit facility [Member]
Subsequent Event [Line Items]
Credit facility, maximum amount				425.0
Decreased amount in credit facility borrowing capacity				$ 39.1