Revenue Recognition - Schedule of Revenue by Product (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Disaggregation of Revenue [Line Items]
Net sales	$ 1,082.1	$ 1,181.7
CSCA
Disaggregation of Revenue [Line Items]
Net sales	644.1	763.7
CSCA | Upper Respiratory
Disaggregation of Revenue [Line Items]
Net sales	130.3	153.7
CSCA | Digestive Health
Disaggregation of Revenue [Line Items]
Net sales	122.2	124.0
CSCA | Nutrition
Disaggregation of Revenue [Line Items]
Net sales	90.6	138.5
CSCA | Pain and Sleep-Aids
Disaggregation of Revenue [Line Items]
Net sales	82.6	103.4
CSCA | Healthy Lifestyle
Disaggregation of Revenue [Line Items]
Net sales	71.3	73.4
CSCA | Oral Care
Disaggregation of Revenue [Line Items]
Net sales	64.7	83.3
CSCA | Skin Care
Disaggregation of Revenue [Line Items]
Net sales	49.6	69.8
CSCA | Women's Health
Disaggregation of Revenue [Line Items]
Net sales	27.2	12.3
CSCA | Vitamins, Minerals, and Supplements ("VMS")
Disaggregation of Revenue [Line Items]
Net sales	4.2	4.5
CSCA | Other CSCA
Disaggregation of Revenue [Line Items]
Net sales	1.4	0.8
CSCI
Disaggregation of Revenue [Line Items]
Net sales	437.9	418.1
CSCI | Upper Respiratory
Disaggregation of Revenue [Line Items]
Net sales	69.1	84.8
CSCI | Digestive Health
Disaggregation of Revenue [Line Items]
Net sales	9.5	8.8
CSCI | Pain and Sleep-Aids
Disaggregation of Revenue [Line Items]
Net sales	51.4	49.9
CSCI | Healthy Lifestyle
Disaggregation of Revenue [Line Items]
Net sales	64.6	66.4
CSCI | Oral Care
Disaggregation of Revenue [Line Items]
Net sales	28.7	29.1
CSCI | Skin Care
Disaggregation of Revenue [Line Items]
Net sales	114.7	83.4
CSCI | Women's Health
Disaggregation of Revenue [Line Items]
Net sales	32.0	29.1
CSCI | Vitamins, Minerals, and Supplements ("VMS")
Disaggregation of Revenue [Line Items]
Net sales	44.6	47.8
CSCI | Other CSCI
Disaggregation of Revenue [Line Items]
Net sales	$ 23.3	$ 18.8