v3.26.1
Cover Page - shares
 6 Months Ended
Jun. 30, 2026
Jul. 16, 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 001-36089  
Entity Registrant Name RingCentral, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 94-3322844  
Entity Address, Address Line One 20 Davis Drive  
Entity Address, City or Town Belmont  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94002  
City Area Code 650  
Local Phone Number 472-4100  
Title of each class Class A Common Stock  
Trading Symbol(s) RNG  
Name of each exchange on which registered 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  
Amendment Flag false  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0001384905  
Current Fiscal Year End Date --12-31  
Class A Common Stock    
Document Information [Line Items]    
Entity Common Stock Outstanding   73,736,624
Class B common stock    
Document Information [Line Items]    
Entity Common Stock Outstanding   9,769,538