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Cover - shares
 9 Months Ended
Sep. 30, 2022
Oct. 31, 2022
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2022  
Document Transition Report false  
Entity File Number 001-35455  
Entity Registrant Name SSR MINING INC.  
Entity Incorporation, State or Country Code A1  
Entity Tax Identification Number 98-0211014  
Entity Address, Address Line Two Suite 1300  
Entity Address, Address Line One 6900 E. Layton Ave  
Entity Address, City or Town Denver  
Entity Address, State or Province CO  
Entity Address, Postal Zip Code 80237  
City Area Code 303  
Local Phone Number 292-1299  
Title of 12(b) Security Common shares without par value  
Trading Symbol SSRM  
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   206,607,962
Entity Central Index Key 0000921638  
Amendment Flag false  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --12-31