Business Combination, Acquisition Related Income

No definition available.

Name:	qbts_BusinessCombinationAcquisitionRelatedIncome
Namespace Prefix:	qbts_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash withdrawal from trust account per share.

+ References

No definition available.

+ Details

Name:	qbts_CashWithdrawalFromTrustAccountPerShare
Namespace Prefix:	qbts_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of the aggregate amount of the advances made under the venture loan agreement.

+ References

No definition available.

+ Details

Name:	qbts_PercentageOfTheAggregateAmountOfTheAdvancesMadeUnderTheVentureLoanAgreement
Namespace Prefix:	qbts_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of the fully-diluted number of Company Shares outstanding immediately preceding calendar year.

+ References

No definition available.

+ Details

Name:	qbts_PercentageOfTheFullyDilutedNumberOfCompanySharesOutstandingImmediatelyPrecedingCalendarYear
Namespace Prefix:	qbts_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Temporary equity stock redeemed during period shares.

+ References

No definition available.

+ Details

Name:	qbts_Temporaryequitystockredeemedduringperiodshares
Namespace Prefix:	qbts_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI https://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460

+ Details

Name:	us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Monetary value of common stock allocated to investors to buy shares of a new issue of common stock before they are offered to the public. When stock is sold on a subscription basis, the issuer does not initially receive the total proceeds. In general, the issuer does not issue the shares to the investor until it receives the entire proceeds.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=65888546&loc=d3e21300-112643

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_CommonStockSharesSubscriptions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash outflow for loan and debt issuance costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

+ Details

Name:	us-gaap_PaymentsOfFinancingCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow associated with the sale of investments that are pledged or subject to withdrawal restrictions during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleOfRestrictedInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of shares issued under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of terms of award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of new stock issued during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=qbts_VentureLoanAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=qbts_DpcmCapitalIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=qbts_PipeInvestorsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=qbts_DCPMMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=qbts_DWaveQuantumIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=qbts_DwaveSystemMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=qbts_InvestorsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=qbts_TwoThousandTwentyTwoEquityIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=qbts_EmployeeStockPurchasePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=qbts_FirstTrancheLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=qbts_SecondTrancheLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=qbts_ThirdTrancheLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent events (Details) - USD ($)					5 Months Ended	6 Months Ended
Subsequent events (Details) - USD ($)	Aug. 25, 2022	Aug. 05, 2022	Aug. 02, 2022	Mar. 03, 2022	Jun. 30, 2022	Jun. 30, 2022	Jul. 14, 2022	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Number of new stock issued during the period						100
Common Stock [Member]
Subsequent Event [Line Items]
Number of new stock issued during the period					100
Venture Loan Agreement [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount								$ 25,000,000
DPCM Capital, Inc [Member]
Subsequent Event [Line Items]
Stock price (in Dollars per share)										$ 10.41
DPCM Capital, Inc [Member] \| PipeInvestorsMember
Subsequent Event [Line Items]
Stock price (in Dollars per share)					$ 10	$ 10			$ 10
Common shares subscriptions					$ 40,000,000	$ 40,000,000			$ 40,000,000
DCPM \| D-Wave Quantum, Inc. [Member]
Subsequent Event [Line Items]
Equity interests acquired							100.00%
DCPM \| DWave System [Member]
Subsequent Event [Line Items]
Equity interests acquired							100.00%
Subsequent Event \| Investors [Member] \| Common Stock [Member]
Subsequent Event [Line Items]
Number of new stock issued during the period	254,360	127,180
Subsequent Event \| Two Thousand Twenty Two Equity Incentive Plan [Member]
Subsequent Event [Line Items]
Number of shares issued under share-based payment arrangement.		16,965,849
Share-Based Compensation Arrangement by Share-Based Payment Award, Terms of Award		ten years
Percentage of the fully-diluted number of Company Shares outstanding immediately preceding calendar year		5.00%
Subsequent Event \| Employee Stock Purchase Plan [Member]
Subsequent Event [Line Items]
Number of shares issued under share-based payment arrangement.		1,607,291
Share-Based Compensation Arrangement by Share-Based Payment Award, Terms of Award		ten years
Percentage of the fully-diluted number of Company Shares outstanding immediately preceding calendar year		1.00%
Subsequent Event \| Minimum [Member] \| Two Thousand Twenty Two Equity Incentive Plan [Member]
Subsequent Event [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Terms of Award		January 1, 2023
Subsequent Event \| Minimum [Member] \| Employee Stock Purchase Plan [Member]
Subsequent Event [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Terms of Award		January 1, 2023
Subsequent Event \| Maximum [Member] \| Two Thousand Twenty Two Equity Incentive Plan [Member]
Subsequent Event [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Terms of Award		January 1, 2032
Subsequent Event \| Maximum [Member] \| Employee Stock Purchase Plan [Member]
Subsequent Event [Line Items]
Number of shares issued under share-based payment arrangement.		8,036,455
Share-Based Compensation Arrangement by Share-Based Payment Award, Terms of Award		January 1, 2032
Subsequent Event \| Venture Loan Agreement [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount				$ 25,000,000
Debt Instrument, Maturity Date				Dec. 31, 2022
Percentage of the aggregate amount of the advances made under the venture loan agreement				5.00%
Repayments of Debt		$ 20,800,000
Payments of Financing Costs		1,000,000
Subsequent Event \| Venture Loan Agreement [Member] \| Minimum [Member]
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				7.25%
Subsequent Event \| Venture Loan Agreement [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				10.50%
Subsequent Event \| First Tranche Loan [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount				$ 15,000,000
Subsequent Event \| Second Tranche Loan [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount				5,000,000
Subsequent Event \| Third Tranche Loan [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount				$ 5,000,000
Subsequent Event \| DPCM Capital, Inc [Member]
Subsequent Event [Line Items]
Proceeds from sale of assets held under trust account to pay redeeming shareholders			$ 291,365,553.22
Cash Withdrawal From Trust Account Per Share			10.01%
Subsequent Event \| Common Class A [Member] \| DPCM Capital, Inc [Member]
Subsequent Event [Line Items]
Temporary equity stock redeemed during period shares.			29,097,787
Subsequent Event \| DCPM \| D-Wave Quantum, Inc. [Member]
Subsequent Event [Line Items]
Business Combination, Acquisition Related Income		37,600,000
Subsequent Event \| DCPM \| DWave System [Member]
Subsequent Event [Line Items]
Business Combination, Acquisition Related Costs		11,500,000
Business Combination, Acquisition Related Income		$ 37,600,000