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Promissory note - related party (Details) - USD ($) | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2022 | Apr. 13, 2022 | Mar. 31, 2022 | Feb. 28, 2022
Related Party Transaction [Line Items] |  |  |  |  |  |
Promissory note - related party | $ 0 |  | $ 420,000 |  |  |
PSPIB [Member] | Venture Loan Agreement [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 25,000,000 |
Affiliated Entity [Member] | Affiliate Note [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Notes Payable, Related Parties, Borrowing Capacity |  |  |  |  |  | $ 1,000,000
Promissory note - related party |  |  | 200,000 |  |  |
Affiliated Entity [Member] | DCPM Note [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Notes Payable, Related Parties, Borrowing Capacity |  |  |  | $ 1,000,000 |  |
Promissory note - related party |  |  | $ 220,000 |  |  |
D-Wave Systems Inc. [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Due to Related Parties, Current | $ 0 | $ 0 |  |  |  |
D-Wave Systems Inc. [Member] | Old D-Wave [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Equity Method Investment, Ownership Percentage | 75.00% |  |  |  |  |
D-Wave Systems Inc. [Member] | Thirdparty Consulting Firm [Member] | Advisory Services [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Related party transaction, amounts of transaction |  | $ 380,000 |  |  |  |
Related Party Transaction, Date | Dec. 31, 2020 |  |  |  |  |
D-Wave Systems Inc. [Member] | PSPIB [Member] | Venture Loan Agreement [Member] | Old D-Wave [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  | 46.80% |

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