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Cover Page - USD ($)
 12 Months Ended
Dec. 31, 2023
Jan. 31, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity Registrant Name Q2 Holdings, Inc.    
Entity Incorporation, State or Country Code DE    
Entity File Number 001-36350    
Entity Tax Identification Number 20-2706637    
Entity Address, Address Line One 10355 Pecan Park Boulevard    
Entity Address, City or Town Austin    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 78729    
City Area Code 833    
Local Phone Number 444-3469    
Title of 12(b) Security Common Stock, $0.0001 par value    
Trading Symbol QTWO    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Smaller Reporting Company false    
Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction Flag false    
Entity Shell Company false    
Entity Public Float     $ 1,801,884,740
Entity Common Stock Shares Outstanding   59,074,211  
Documents Incorporated by Reference
Part III of this Annual Report on Form 10-K incorporates certain information by reference from the definitive proxy statement for the registrant's 2024 Annual Meeting of Stockholders to be filed within 120 days of the registrant's fiscal year ended December 31, 2023, or the Proxy Statement. Except with respect to information specifically incorporated by reference in this Annual Report on Form 10-K, the Proxy Statement is not deemed to be filed as part of this Annual Report on Form 10-K.
    
Entity Central Index Key 0001410384    
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY