v3.22.2.2
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2022
Oct. 25, 2022
Cover Abstract    
Entity Registrant Name UNITED STATES LIME & MINERALS INC  
Entity Central Index Key 0000082020  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2022  
Document Transition Report false  
Entity File Number 000-04197  
Entity Incorporation, State or Country Code TX  
Entity Tax Identification Number 75-0789226  
Entity Address, Address Line One 5429 LBJ Freeway, Suite 230  
Entity Address, City or Town Dallas  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 75240  
City Area Code 972  
Local Phone Number 991-8400  
Title of 12(b) Security Common stock, $0.10 par value  
Trading Symbol USLM  
Security Exchange Name NASDAQ  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   5,673,540
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q3