v3.26.1
Cover Page - shares
6 Months Ended
Jun. 30, 2026
Jul. 22, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 001-38583  
Entity Registrant Name Crinetics Pharmaceuticals, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 26-3744114  
Entity Address, Address Line One 6055 Lusk Boulevard  
Entity Address, City or Town San Diego  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 92121  
City Area Code 858  
Local Phone Number 450-6464  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol CRNX  
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   106,065,229
Entity Central Index Key 0001658247  
Amendment Flag false  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31