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Business Combination - Common Stock (Details) - shares |  | 9 Months Ended |  |
--- | --- | --- | --- | ---
Aug. 05, 2022 | Sep. 30, 2022 | Aug. 04, 2022 | Dec. 31, 2021
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |
Business Combination and PIPE shares (in shares) | 10,144,040 |  |  |
Common stock, outstanding (in shares) | 110,007,972 | 110,377,357 |  | 2,817,498
DCPM Class B common stock |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |
Common stock, outstanding (in shares) | 3,015,575 |  | 7,500,000 |
DPCM Capital, Inc. Stockholders | DCPM Class A common stock |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |
Exchange of common stock (in shares) | 1,311,937 |  |  |
DPCM Capital, Inc. Stockholders | DCPM Class B common stock |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |
Exchange of common stock (in shares) | 3,015,575 |  |  |
D-Wave Systems Inc. Stockholders |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |
Exchange of common stock (in shares) | 99,736,752 |  |  |
ELOC |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |
Issuance of common stock (in shares) | 127,180 | 381,540 |  |
PIPE |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |
Issuance of common stock (in shares) | 5,816,528 |  |  |

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