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

Significant Accounting Policies - Additional Information (Detail) - USD ($)		3 Months Ended
	Jan. 01, 2017	Mar. 31, 2017	Mar. 31, 2016
Subsidiary or Equity Method Investee [Line Items]
Deferred income tax expense (benefits)		$ (3,200,000)	$ (3,200,000)
Other operating income			800,000
China [Member]
Subsidiary or Equity Method Investee [Line Items]
Other operating income		0	$ 800,000
Accounting Standards Update 2016-09 [Member]
Subsidiary or Equity Method Investee [Line Items]
Deferred income tax expense (benefits)	$ (29,600,000)
Excess tax benefits		$ 4,300,000