Quarterly report [Sections 13 or 15(d)]

Basis of Presentation (Details)

v3.25.2
Basis of Presentation (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 27, 2025
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Noncontrolling Interest [Line Items]            
Increase (decrease) in noncontrolling interest   $ 200 $ 100 $ 300 $ 300  
Noncontrolling interest   6,001   6,001   $ 5,678
Shanghai Fosun Pharmaceutical (Group) Co., Ltd.            
Noncontrolling Interest [Line Items]            
Number of shares sold in transaction (in shares) 2,854,607          
Nature’s Sunshine Hong Kong Limited            
Noncontrolling Interest [Line Items]            
Share purchase agreement, expected payment to acquire interest in joint venture   3,900   3,900    
Shanghai Nature’s Sunshine Health Products Co., Ltd            
Noncontrolling Interest [Line Items]            
Share purchase agreement, expected payment to acquire interest in joint venture   $ 3,100   $ 3,100