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Basis of presentation and Summary of Significant Accounting Policies - Schedule of estimated useful lives of its property and equipment (Details) | 12 Months Ended
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Dec. 31, 2021
Schedule of Estimated Useful Lives of its Property and Equipment [Line Items] |
Property, plant and equipment, useful life | 5 years
Lab Equipment [Member] |
Schedule of Estimated Useful Lives of its Property and Equipment [Line Items] |
Property, plant and equipment, useful life | 5 years
Computer Equipment [Member] |
Schedule of Estimated Useful Lives of its Property and Equipment [Line Items] |
Property, plant and equipment, useful life | 3 years
Furniture and Fixtures [Member] |
Schedule of Estimated Useful Lives of its Property and Equipment [Line Items] |
Property, plant and equipment, useful life | 5 years
Leasehold Improvements [Member] |
Schedule of Estimated Useful Lives of its Property and Equipment [Line Items] |
Property plant and equipment shorter of expected lease term or estimated useful life | Shorter of expected lease term or estimated useful life

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- Definition Property plant And equipment shorter of expected lease term or estimated useful life. + References No definition available. + Details
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Namespace Prefix: | qbts_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Schedule of estimated useful lives of its property and equipment. + References No definition available. + Details
Name: | qbts_ScheduleOfEstimatedUsefulLivesOfItsPropertyAndEquipmentLineItems
Namespace Prefix: | qbts_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=qbts_LabEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_ComputerEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LeaseholdImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |