NET LOSS PER SHARE - Potentially Dilutive Securities (Details) - shares	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	13,435,118	32,321,210
Warrants \| Public Warrants as converted to Common Shares (Note 10)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	0	5,387,118
Warrants \| Private Warrants as converted to Common Shares (Note 10)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	0	8,107,302
Warrants \| D-Wave Systems Warrant Preferred Shares as converted to Common Shares (Note 10)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	1,155,713	1,155,713
Warrants \| Equipment Financing Agreement Warrant – Common Shares (Note 9)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	21,563	0
Stock options issued and outstanding
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	2,851,878	6,776,433
Unvested restricted stock unit awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	9,405,964	10,894,644