XML 20 R1.htm IDEA: XBRL DOCUMENT v3.25.0.1
Cover Page - USD ($)
 12 Months Ended
Dec. 31, 2024
Feb. 25, 2025
Jun. 30, 2024
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-31922    
Entity Registrant Name SOMNIGROUP INTERNATIONAL INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 33-1022198    
Entity Address, Address Line One 1000 Tempur Way    
Entity Address, City or Town Lexington    
Entity Address, State or Province KY    
Entity Address, Postal Zip Code 40511    
City Area Code 800    
Local Phone Number 878-8889    
Title of 12(b) Security Common Stock, $0.01 par value    
Trading Symbol SGI    
Security Exchange Name NYSE    
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    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 7,901,086,937
Entity Common Stock, Shares Outstanding   208,524,132  
Documents Incorporated by Reference
Portions of the registrant’s definitive proxy statement for the 2025 Annual Meeting of Stockholders, which is to be filed subsequent to the date hereof, are incorporated by reference into Part III of this Form 10-K.
    
Entity Central Index Key 0001206264    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Amendment Flag false