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Related Party Transactions - Narrative (Details) - USD ($) |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2020 | Oct. 02, 2020 | Aug. 27, 2020 | Jun. 22, 2022 | Oct. 20, 2020 | Oct. 20, 2020 | Aug. 27, 2020 | Aug. 18, 2020 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Apr. 13, 2022 | Mar. 31, 2022 | Feb. 28, 2022 | Oct. 20, 2021
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sponsor transferred an aggregate shares |  |  |  |  |  |  |  | 80,000 |  |  |  |  |  |  |  |  |  |  |  |
Common stock, issued (in shares) | 3,166,948 |  |  |  |  |  |  |  |  |  |  |  | 3,166,948 | 3,166,948 | 3,166,948 |  |  |  |  |
Warrants, exercise price (in usd per share) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1 |  |  |  |  |  |
Old D-Wave [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 75.00% |  |  |  |  |  |
Thirdparty Consulting Firm [Member] | Advisory Services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction, amounts of transaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 380,000 |  |  |  |  |
Due to Related Parties, Current | $ 0 |  |  |  |  |  |  |  |  |  |  |  | $ 0 | 0 | 0 |  |  |  |  |
Related Party Transaction, Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Dec. 31, 2020 |  |  |  |
PSPIB [Member] | Venture Loan Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 25,000,000 |  |
PSPIB [Member] | Venture Loan Agreement [Member] | Old D-Wave [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 46.80% |  |
DPCM Capital, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original purchase price per share |  |  |  |  |  |  |  | $ 0.004 |  |  |  |  |  |  |  |  |  |  |  |
Aggregate of founder shares issued and outstanding |  | 7,187,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General and administrative expenses (in Dollars) |  |  |  |  |  | $ 10,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Incurred Fees |  |  |  |  |  |  |  |  | $ 30,000 | $ 30,000 | $ 60,000 | $ 60,000 | 20,000 | 120,000 |  |  |  |  |  |
Accounts payable and accrued liabilities | $ 20,000 |  |  |  |  |  |  |  | 200,000 |  | 200,000 |  | $ 20,000 | 140,000 | $ 20,000 |  |  |  |  |
Working Capital Debt |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000 |  |  |  |  |  |
DPCM Capital, Inc. [Member] | Unsecured Promissory Note [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000 |  |  |
DPCM Capital, Inc. [Member] | Sponsor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000 |
Due from related parties |  |  |  |  |  |  |  |  | 200,000 |  | 200,000 |  |  |  |  |  |  |  |  |
Notes Payable, Related Parties |  |  |  |  |  |  |  |  | $ 220,000 |  | $ 220,000 |  |  |  |  |  |  |  |  |
DPCM Capital, Inc. [Member] | Sponsor [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan funded by sponsor |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 220,000 |  |  |
DPCM Capital, Inc. [Member] | Founder Shares [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price (in Dollars) |  |  |  | $ 25,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sponsor transferred an aggregate shares |  | 18,750 | 70,000 |  |  |  | 70,000 | 80,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination Description |  |  |  |  |  |  |  |  |  |  | The initial stockholders have agreed that, subject to certain limited exceptions, the Founder Shares will not be transferred, assigned or sold until the earlier of (A) one year after the completion of a Business Combination or (B) subsequent to a Business Combination, (x) if the last reported sale price of the Class A common stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock capitalizations, reorganizations, recapitalizations and the like) for any 20 trading days within any30-tradingday period commencing at least 150 days after a Business Combination, or (y) the date on which the Company completes a liquidation, merger, capital stock exchange or other similar transaction that results in all of the stockholders having the right to exchange their common stock for cash, securities or other property. |  |  | The initial stockholders have agreed that, subject to certain limited exceptions, the Founder Shares will not be transferred, assigned or sold until the earlier of (A) one year after the completion of a Business Combination or (B) subsequent to a Business Combination, (x) if the last reported sale price of the Class A common stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock capitalizations, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after a Business Combination, or (y) the date on which the Company completes a liquidation, merger, capital stock exchange or other similar transaction that results in all of the stockholders having the right to exchange their common stock for cash, securities or other property. |  |  |  |  |  |
DPCM Capital, Inc. [Member] | Over-Allotment Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate founder shares subject to forfeiture |  |  |  |  |  |  | 150,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares forfeited |  |  |  |  |  |  |  |  |  |  | 1,125,000 |  |  | 1,125,000 |  |  |  |  |  |
DPCM Capital, Inc. [Member] | IPO [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage Of Issued And Outstanding Shares |  |  |  |  |  |  |  |  |  |  | 20.00% |  |  | 20.00% |  |  |  |  |  |
Common Class B [Member] | DPCM Capital, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate shares issued |  |  |  | 5,750,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock Dividends, Shares |  | 1,437,500 |  |  | 1,437,500 | 1,437,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate of founder shares issued and outstanding | 7,500,000 |  |  |  |  |  |  |  |  |  |  |  |  | 7,500,000 |  |  |  |  |  |
Common stock, issued (in shares) | 7,500,000 |  |  |  |  |  |  |  | 7,500,000 |  | 7,500,000 |  | 7,500,000 | 7,500,000 | 7,500,000 |  |  |  |  |
Common stock, outstanding (in shares) | 7,500,000 |  |  |  |  |  |  |  | 7,500,000 |  | 7,500,000 |  | 7,500,000 | 7,500,000 | 7,500,000 |  |  |  |  | 8,625,000
Common Class B [Member] | DPCM Capital, Inc. [Member] | Founder Shares [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, issued (in shares) |  |  |  |  | 8,625,000 | 8,625,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, outstanding (in shares) |  |  |  |  | 8,625,000 | 8,625,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Class B [Member] | DPCM Capital, Inc. [Member] | Over-Allotment Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares forfeited |  |  |  |  |  |  |  |  |  |  | 1,125,000 |  |  | 1,125,000 |  |  |  |  |  |

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