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Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Supplemental Disclosures (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Schedule of Cash, Cash Equivalents and Restricted Cash (Details) link:presentationLink link:calculationLink link:definitionLink 9954491 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule ofInternally Developed Software (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Fixed Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - INVESTMENTS - Amortized Cost and Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - INVESTMENTS - Unrealized Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9954495 - Disclosure - INVESTMENTS - Other investments (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - INVESTMENTS - Gross and Net Realized Gains and Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9954497 - Disclosure - INVESTMENTS - Contractual Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9954498 - Disclosure - INVESTMENTS - Net Investment Income (Details) link:presentationLink link:calculationLink link:definitionLink 9954499 - Disclosure - INVESTMENTS - Credit Ratings (Details) link:presentationLink link:calculationLink link:definitionLink 9954500 - Disclosure - INVESTMENTS - Special Deposits (Details) link:presentationLink link:calculationLink link:definitionLink 9954501 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Fair Value of Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954502 - 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Disclosure - RESTRUCTURING COSTS - Schedule of Restructuring Costs Recorded In Consolidated Statements Of Operations And Comprehensive Loss (Details) link:presentationLink link:calculationLink link:definitionLink 9954522 - Disclosure - RESTRUCTURING COSTS - Restructuring Costs Recorded In Other Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954523 - Disclosure - CAPITAL STOCK (Details) link:presentationLink link:calculationLink link:definitionLink 9954524 - Disclosure - SHARE-BASED COMPENSATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954525 - Disclosure - SHARE-BASED COMPENSATION - Schedule of Warrant Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9954526 - Disclosure - SHARE-BASED COMPENSATION- Schedule of Warrants (Details) link:presentationLink link:calculationLink link:definitionLink 9954527 - Disclosure - SHARE-BASED COMPENSATION - Schedule of Share-based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9954528 - 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