v3.26.1
Cover Page - shares
3 Months Ended
Mar. 31, 2026
May 04, 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 001-36180  
Entity Registrant Name CHEGG, INC  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 20-3237489  
Entity Address, Address Line One 2261 Market Street STE 46218  
Entity Address, City or Town San Francisco  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94114  
City Area Code 408  
Local Phone Number 855-5700  
Title of 12(b) Security Common stock, $0.001 par value per share  
Trading Symbol CHGG  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   111,958,838
Entity Central Index Key 0001364954  
Current Fiscal Year End Date --12-31  
Document Fiscal Year End 2026  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Filer Category Accelerated Filer