Document and Entity Information - shares	3 Months Ended
	Mar. 29, 2025	May 01, 2025
Document and Entity Information
Document Type	10-Q/A
Document Quarterly Report	true
Document Period End Date	Mar. 29, 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		79,797,888
Entity Central Index Key	0001278027
Current Fiscal Year End Date	--01-03
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q1
Amendment Flag	true
Amendment Description	On May 6, 2025, B&G Foods’ third-party filing agent mistakenly filed, without B&G Foods’ knowledge or authorization, an incomplete draft of B&G Foods’ quarterly report on Form 10-Q for the quarterly period ended March 29, 2025. That draft report, as filed, was not complete and had not been subject to B&G Foods’ final review process. Further, KPMG's PCAOB AS 4105 review also was not completed prior to the inadvertent filing. This Amendment No. 1 on Form 10-Q/A is being filed to correct the filing error, amends and replaces the original filing in its entirety, and contains the final and complete quarterly report for B&G Foods for the period. The changes in reported information between this amendment and the original filing include an additional risk factor in Part II, Item 1A, clarifications and corrections to commentary regarding segment operating results in Part I, Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and other immaterial changes and corrections.