v3.23.1
Cover - shares
 3 Months Ended
Mar. 31, 2023
May 05, 2023
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2023  
Document Transition Report false  
Entity File Number 001-37540  
Entity Registrant Name HOSTESS BRANDS, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 47-4168492  
Entity Address, Address Line One 7905 Quivira Road  
Entity Address, City or Town Lenexa,  
Entity Address, State or Province KS  
Entity Address, Postal Zip Code 66215  
City Area Code 816  
Local Phone Number 701-4600  
Title of 12(b) Security Class A Common Stock, Par Value of $0.0001 per share  
Trading Symbol TWNK  
Security Exchange Name NASDAQ  
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   132,850,224
Amendment Flag false  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q1  
Entity Central Index Key 0001644406  
Current Fiscal Year End Date --12-31