v3.21.2

Organization and Description of Business (Details) | Sep. 30, 2021
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Q2 Software, Inc. |
Subsidiary of Limited Liability Company or Limited Partnership [Line Items] |
Wholly owned subsidiary, ownership percentage | 100.00%

X
- Definition Wholly Owned Subsidiary, Ownership Percentage + References No definition available. + Details
Name: | qtwo_WhollyOwnedSubsidiaryOwnershipPercentage
Namespace Prefix: | qtwo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_OwnershipAxis=qtwo_Q2SoftwareInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |