v3.22.4
Cover - USD ($)
 12 Months Ended
Dec. 31, 2022
Feb. 17, 2023
Jun. 30, 2022
Class of Stock [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2022    
Current Fiscal Year End Date --12-31    
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 Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 2,886,801,176
Documents Incorporated by Reference Portions of the Registrant’s definitive proxy statement relating to its 2023 annual meeting of stockholders (the “2023 Proxy Statement”) are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. The 2023 Proxy Statement will be filed with the U.S. Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.    
Amendment Flag false    
Entity Central Index Key 0001644406    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Common Class A      
Class of Stock [Line Items]      
Entity Common Stock, Shares Outstanding   133,474,299  
Common Class B      
Class of Stock [Line Items]      
Entity Common Stock, Shares Outstanding   0