0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - SUMMARY OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - PROPERTY AND EQUIPMENT—NET link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - SOFTWARE—NET link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - INTANGIBLE ASSETS AND GOODWILL link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - DEBT link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Senior Non-Convertible Preferred Stock link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Warrants to Purchase Shares of Common Stock link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Shareholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - NET LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - SEGMENT INFORMATION link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - RELATED-PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - SUMMARY OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - SUMMARY OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - PROPERTY AND EQUIPMENT—NET (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - SOFTWARE—NET (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - INTANGIBLE ASSETS AND GOODWILL (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Shareholders' Equity (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - NET LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - SEGMENT INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - SUMMARY OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES - (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Commission Receivable Roll Forward (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Contract Liabilities Roll Forward (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - PROPERTY AND EQUIPMENT—NET - Schedule of Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - PROPERTY AND EQUIPMENT—NET - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - SOFTWARE—NET - Schedule of Capitalized Software (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - SOFTWARE—NET - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - LEASES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - LEASES - Schedule of Lease Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - LEASES - Schedule of Maturity of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - LEASES - Schedule of Maturity of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - LEASES - Schedule of Sublease Income, Fiscal Year Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - INTANGIBLE ASSETS AND GOODWILL - Schedule of Indefinite-Lived Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - INTANGIBLE ASSETS AND GOODWILL - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - INTANGIBLE ASSETS AND GOODWILL - Schedule of Future Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - DEBT - Schedule of Long-term Debt Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - DEBT - Schedule of Long-term Debt Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - DEBT - Schedule of Maturities of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - DEBT - Narrative Variable Interest Entities (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Senior Non-Convertible Preferred Stock (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Warrants to Purchase Shares of Common Stock (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Fair Value Measurements - Schedule of Assets And Liabilities, Measured at Fair Value on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Fair Value Measurements - Schedule of Estimated Fair Value of the Eleventh Amendment Warrants (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Fair Value Measurements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Fair Value Measurements - Schedule of Estimated Fair Value of the Preferred Stock Warrants (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Fair Value Measurements - Schedule of Changes in Level 3 Fair Value Measurements (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Shareholders' Equity - Schedule of Common Stock (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Shareholders' Equity - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Shareholders' Equity - Schedule of Share-based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Shareholders' Equity - Schedule of Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Shareholders' Equity - Schedule of Restricted Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Shareholders' Equity - Schedule of Schedule of Price Vesting Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Shareholders' Equity - Schedule of Fair Value Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Shareholders' Equity - Schedule of Price-Vested Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - NET LOSS PER SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - NET LOSS PER SHARE - Schedule of Earnings Per Share, Basic and Diluted (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - NET LOSS PER SHARE - Schedule of Antidilutive Securities Excluded from Computation of Income (Loss) Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - SEGMENT INFORMATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - SEGMENT INFORMATION - Schedule of Consolidated Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - SEGMENT INFORMATION - Schedule of Segment Reporting Information (Details) link:presentationLink link:calculationLink link:definitionLink