v3.25.2
Document and Entity Information - shares
 6 Months Ended
Jun. 28, 2025
Jul. 31, 2025
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 28, 2025  
Document Transition Report false  
Entity File Number 001-32316  
Entity Registrant Name B&G FOODS, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 13-3918742  
Entity Address, Address Line One Four Gatehall Drive  
Entity Address, City or Town Parsippany  
Entity Address, State or Province NJ  
Entity Address, Postal Zip Code 07054  
City Area Code 973  
Local Phone Number 401-6500  
Title of 12(b) Security Common Stock, par value $0.01 per share  
Trading Symbol BGS  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   80,003,749
Entity Central Index Key 0001278027  
Current Fiscal Year End Date --01-03  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Amendment Flag false