Annual report pursuant to Section 13 and 15(d)

Basis of Presentation - Net Property, Plant and Equipment (Detail)

v2.4.1.9
Basis of Presentation - Net Property, Plant and Equipment (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Property, plant and equipment - at cost:    
Land and Building $ 22.2hlf_LandAndBuildingsGross $ 22.2hlf_LandAndBuildingsGross
Furniture and fixtures 11.4us-gaap_FurnitureAndFixturesGross 12.3us-gaap_FurnitureAndFixturesGross
Equipment 578.5us-gaap_MachineryAndEquipmentGross 482.0us-gaap_MachineryAndEquipmentGross
Building and leasehold improvements 147.8hlf_BuildingAndLeaseHoldImprovementsGross 130.2hlf_BuildingAndLeaseHoldImprovementsGross
Property, plant and equipment - at cost 759.9us-gaap_PropertyPlantAndEquipmentGross 646.7us-gaap_PropertyPlantAndEquipmentGross
Less: accumulated depreciation and amortization (393.2)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (327.8)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Net property, plant and equipment $ 366.7us-gaap_PropertyPlantAndEquipmentNet $ 318.9us-gaap_PropertyPlantAndEquipmentNet