Annual report pursuant to Section 13 and 15(d)

Segment Information - Schedule of Entity-Wide Information, Revenue from External Customers by Products and Services (Detail)

v3.22.4
Segment Information - Schedule of Entity-Wide Information, Revenue from External Customers by Products and Services (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Revenue from External Customer [Line Items]      
Total net sales $ 5,204.4 $ 5,802.8 $ 5,541.8
Weight Management [Member]      
Revenue from External Customer [Line Items]      
Total net sales 2,954.2 3,370.4 3,312.8
Targeted Nutrition [Member]      
Revenue from External Customer [Line Items]      
Total net sales 1,512.7 1,636.6 1,527.4
Energy, Sports, and Fitness [Member]      
Revenue from External Customer [Line Items]      
Total net sales 550.6 551.8 437.4
Outer Nutrition [Member]      
Revenue from External Customer [Line Items]      
Total net sales 85.8 107.8 111.3
Literature, Promotional and Other [Member]      
Revenue from External Customer [Line Items]      
Total net sales $ 101.1 $ 136.2 $ 152.9