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Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2022
Feb. 15, 2023
Jun. 30, 2022
Document Information Line Items      
Entity Registrant Name STURM RUGER & CO INC    
Trading Symbol RGR    
Document Type 10-K    
Current Fiscal Year End Date --12-31    
Entity Common Stock, Shares Outstanding   17,596,600  
Entity Public Float     $ 1,112,555,000
Amendment Flag false    
Entity Central Index Key 0000095029    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Large Accelerated Filer    
Entity Well-known Seasoned Issuer Yes    
Document Period End Date Dec. 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
ICFR Auditor Attestation Flag true    
Document Annual Report true    
Document Transition Report false    
Entity File Number 0-4776    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 06-0633559    
Entity Address, Address Line One 1 Lacey Place    
Entity Address, City or Town Southport    
Entity Address, State or Province CT    
Entity Address, Postal Zip Code 06890    
City Area Code (203)    
Local Phone Number 259-7843    
Title of 12(b) Security Common Stock, $1 par value    
Security Exchange Name NYSE    
Entity Interactive Data Current Yes    
Auditor Firm ID 49    
Auditor Name RSM US LLP    
Auditor Location Stamford, Connecticut