0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Unaudited Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Unaudited Condensed Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Unaudited Condensed Consolidated Statements of Operations link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Unaudited Condensed Consolidated Statements of Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Unaudited Condensed Consolidated Statements of Comprehensive Loss (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Unaudited Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Unaudited Condensed Consolidated Statements of Temporary Equity and Shareholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - DESCRIPTION OF ORGANIZATION link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - OTHER CURRENT ASSETS link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - PROPERTY AND EQUIPMENT — NET link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - OTHER INTANGIBLE ASSET—NET link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - ACCRUED LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - FAIR VALUE link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - NON-CONTROLLING INTERESTS link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - NET EARNINGS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - STOCK-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - SEGMENTS link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - RELATED PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - OTHER CURRENT ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - PROPERTY AND EQUIPMENT — NET (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - OTHER INTANGIBLE ASSET—NET (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - ACCRUED LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - FAIR VALUE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - NON-CONTROLLING INTERESTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - NET EARNINGS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - STOCK-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - DESCRIPTION OF ORGANIZATION - Initial Public Offering (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - DESCRIPTION OF ORGANIZATION - Reorganization Transaction (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Customer Concentration (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Government Grants (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Stock-Based Compensation Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - OTHER CURRENT ASSETS (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - PROPERTY AND EQUIPMENT — NET (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - OTHER INTANGIBLE ASSET—NET (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - ACCRUED LIABILITIES - Schedule of Accrued Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - ACCRUED LIABILITIES - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - FAIR VALUE - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - FAIR VALUE - Warrant Liability Roll Forward (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - FAIR VALUE - Assumptions used to Estimate Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - LEASES - Lessee (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - LEASES - Lease Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - LEASES - Supplemental Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - LEASES - Supplemental Balance Sheet Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - LEASES - Maturities of Operating Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - LEASES - Maturities of Operating Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - LEASES - Lessor, Operating Leases, Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - LEASES - Lessor, Operating Lease Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - LEASES - Lessor, Future Minimum Lease Payments to be Received Under the Sub-Lease (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - LEASES - Lessor, Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - LEASES - Lessor, Lease Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - LEASES - Lessor, Supplemental Balance Sheet Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - LEASES - Lessor, Future Minimum Lease Payments to be Received Under the Sales-Type Lease (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - STOCKHOLDERS' EQUITY - Amendment and Restatement of Certificate of Incorporation (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - STOCKHOLDERS' EQUITY - Recapitalization from the Reorganization Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - STOCKHOLDERS' EQUITY - Initial Public Offering (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - STOCKHOLDERS' EQUITY - Preferred Stock (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - NON-CONTROLLING INTERESTS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - NON-CONTROLLING INTERESTS - Ownership of Common Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - NON-CONTROLLING INTERESTS - Summary of the Effect Of Changes in Ownership on the Company's Equity (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS - Disaggregation of Revenue by Products or Service (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS - Disaggregation of Revenue by Timing of Transfer of Goods or Services (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS - Contract Liability Balances (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS - Accounts Receivable and Contract Asset Balances (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - NET EARNINGS PER SHARE - Calculation of Basic and Diluted Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - NET EARNINGS PER SHARE - Summary of Securities Excluded from the Computation of Diluted Loss Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - STOCK-BASED COMPENSATION - Quantinuum 2023 Equity Incentive Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - STOCK-BASED COMPENSATION - Summary of 2023 Awards (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - STOCK-BASED COMPENSATION - Quantinuum 2026 Equity Incentive Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - STOCK-BASED COMPENSATION - Summary of 2026 Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - STOCK-BASED COMPENSATION - IPO Equity Awards (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - STOCK-BASED COMPENSATION - Summary of Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - STOCK-BASED COMPENSATION - Summary of Assumptions Used (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - STOCK-BASED COMPENSATION - Summary of Total Stock Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - STOCK-BASED COMPENSATION - Summary of Total Stock Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - SEGMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - RELATED PARTY TRANSACTIONS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - RELATED PARTY TRANSACTIONS - Transition Service Agreement (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - RELATED PARTY TRANSACTIONS - Strategic Services And Supply Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 9955576 - Disclosure - RELATED PARTY TRANSACTIONS - Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955577 - Disclosure - RELATED PARTY TRANSACTIONS - Other Related Party Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 9955578 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink