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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) | Jun. 30, 2026 $ / shares | Dec. 31, 2025 $ / shares | Dec. 31, 2023 CAD ($) | Nov. 20, 2020 CAD ($)
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Accounting Policies [Line Items] |  |  |  |
Common stock, par value (in usd per share) | $ / shares | $ 0.0001 | $ 0.0001 |  |
SIF Loan |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Face amount | $ |  |  | $ 40,000,000.0 | $ 40,000,000.0
Developed technology |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Finite-lived intangible asset, useful life | 15 years |  |  |
Trademarks |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Finite-lived intangible asset, useful life | 2 years |  |  |
Quantum computer systems |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Finite-lived intangible asset, useful life | 3 years |  |  |

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