XML 25 R1.htm IDEA: XBRL DOCUMENT v3.25.0.1
Cover page - USD ($)
 12 Months Ended
Dec. 31, 2024
Jan. 31, 2025
Jun. 28, 2024
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Document Transition Report false    
Entity File Number 001-31539    
Entity Registrant Name SM ENERGY CO    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 41-0518430    
Entity Address, Address Line One 1700 Lincoln Street    
Entity Address, Address Line Two Suite 3200    
Entity Address, City or Town Denver    
Entity Address, State or Province CO    
Entity Address, Postal Zip Code 80203    
City Area Code (303)    
Local Phone Number 861-8140    
Title of 12(b) Security Common stock, $0.01 par value    
Trading Symbol SM    
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     $ 3,367,875,429
Entity Common Stock, Shares Outstanding   114,461,934  
Documents Incorporated by Reference
Certain information required by Items 10, 11, 12, 13, and 14 of Part III of this report is incorporated by reference from portions of the registrant’s Definitive Proxy Statement on Schedule 14A relating to its 2025 annual meeting of stockholders, to be filed within 120 days after December 31, 2024.
    
Entity Central Index Key 0000893538    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Amendment Flag false