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Description of business	3 Months Ended
Description of business	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of business	Description of business D-Wave Quantum Inc. ("D-Wave" or the “Company”) was incorporated under the General Corporation Law of the State of the Delaware on January 24, 2022. The Company was formed for the purpose of effecting a merger between DPCM Capital, Inc. (“DPCM”), D-Wave Systems Inc. (“D-Wave Systems”), and certain other affiliated entities through a series of transactions (the “Merger”) pursuant to the definitive agreement entered into on February 7, 2022 (the “Transaction Agreement”). On August 5, 2022, in conjunction with the Merger, DPCM and D-Wave Systems became wholly-owned subsidiaries of, and are operated by, the Company. Upon the completion of the Merger, the Company succeeded to all of the operations of its predecessor, D-Wave Systems. D-Wave is a commercial quantum computing company that provides customers with a full suite of professional services and web-based access to its superconducting quantum computer systems and integrated software environment through its cloud service, LeapTM. Historically, the Company has developed its own annealing superconducting quantum computer and associated software, and its current generation quantum system is the AdvantageTM system. D-Wave has three operating facilities, which it leases, in North America. These facilities are located in Burnaby, British Columbia, Richmond, British Columbia, and Palo Alto, California.