v3.26.1
Cover - shares
 3 Months Ended
Mar. 31, 2026
Apr. 30, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Entity File Number 001-40624  
Entity Registrant Name CS Disco, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 46-4254444  
Entity Address, Address Line One 111 Congress Ave.  
Entity Address, Address Line Two Suite 900  
Entity Address, City or Town Austin  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 78701  
City Area Code 833  
Local Phone Number 653-4726  
Title of 12(b) Security Common stock, par value $0.005  
Trading Symbol LAW  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   64,134,406
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
CIK 0001625641