v3.26.1
Cover - shares
 6 Months Ended
Jun. 30, 2026
Jul. 31, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 001-40568  
Entity Registrant Name CLEAR SECURE, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 86-2643981  
Entity Address, Address Line One 85 10th Avenue  
Entity Address, Address Line Two 9th Floor  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10011  
City Area Code 646  
Local Phone Number 723-1404  
Title of 12(b) Security Class A common stock, par value $0.00001 per share  
Trading Symbol YOU  
Security Exchange Name NYSE  
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  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0001856314  
Amendment Flag false  
Class A Common Stock par value $0.00001 per share (the “Class A Common Stock”)    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   102,911,049
Class B Common Stock par value $0.00001 per share (the “Class B Common Stock”)    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   0
Class C Common Stock par value $0.00001 per share (the “Class C Common Stock”)    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   32,377,033
Class D Common Stock par value $0.00001 per share (the “Class D Common Stock”)    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   0