Document and Entity Information - shares	6 Months Ended
	Jul. 02, 2022	Jul. 29, 2022
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Jul. 02, 2022
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		71,670,346
Entity Central Index Key	0001278027
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Amendment Flag	false