| Cover Page | Dec. 14, 2021 |
| Entity Addresses [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Dec. 14, 2021 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001410384 |
| Amendment Flag | false |
