0000001 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) 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 STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - THE COMPANY AND BASIS OF PRESENTATION link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - BUSINESS COMBINATIONS AND ASSET ACQUISITIONS link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - INVESTMENTS AND FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - NOTES PAYABLE link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - CONTRACTS WITH CUSTOMERS AND REVENUE CONCENTRATION link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - SHARE-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - NET LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - SEGMENT INFORMATION link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policy) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - BUSINESS COMBINATIONS AND ASSET ACQUISTIONS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - INVESTMENTS AND FAIR VALUE MEASUREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - NOTES PAYABLE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - SHARE-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - NET LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - SEGMENT INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - BUSINESS COMBINATIONS AND ASSET ACQUISITIONS - 2025 Business Combinations (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - BUSINESS COMBINATIONS AND ASSET ACQUISITIONS - Asset Acquisitions (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - BUSINESS COMBINATIONS AND ASSET ACQUISITIONS - 2024 Business Combinations (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - INVESTMENTS AND FAIR VALUE MEASUREMENTS - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - INVESTMENTS AND FAIR VALUE MEASUREMENTS - Debt Securities, Available-for-sale (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - INVESTMENTS AND FAIR VALUE MEASUREMENTS - Funds Held For Clients (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - INVESTMENTS AND FAIR VALUE MEASUREMENTS - Investments Classified by Contractual Maturity Date (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill Acquisitions (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Intangible Asset Acquisitions (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Gross Carrying Amount and Accumulated Amortization of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Expected Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - NOTES PAYABLE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - NOTES PAYABLE (Details) - Schedule of Debt link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - NOTES PAYABLE (Details) - Schedule of Debt and Debt Issuance Costs link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - NOTES PAYABLE (Details) - Schedule of Maturities of Long-term Debt link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - CONTRACTS WITH CUSTOMERS AND REVENUE CONCENTRATION (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - LEASES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - LEASES (Details) - Rent Expense Components link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - LEASES (Details) - Supplemental Cash Flow Information for Leases link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - LEASES (Details) - Lease Maturity link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - LEASES (Details) - Lease Maturity link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - SHARE-BASED COMPENSATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - SHARE-BASED COMPENSATION - Issuance of Common Stock Related to Share-based Payment Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - NET LOSS PER SHARE (Details) - Components of Earnings Per Share, Basic and Diluted link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - SEGMENT INFORMATION (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink