0001001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 1001002 - Statement - UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 1002003 - Statement - UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003004 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 1004005 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 1005006 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION link:presentationLink link:calculationLink link:definitionLink 2402401 - Disclosure - DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION (Details) link:presentationLink link:calculationLink link:definitionLink 2103102 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 2204201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Cash and Cash Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2108103 - Disclosure - REVENUE link:presentationLink link:calculationLink link:definitionLink 2309302 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 2410404 - Disclosure - REVENUE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2411405 - Disclosure - REVENUE - Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 2412406 - Disclosure - REVENUE - Deferred Revenue Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 2113104 - Disclosure - PROPERTY and EQUIPMENT, net link:presentationLink link:calculationLink link:definitionLink 2314303 - Disclosure - PROPERTY and EQUIPMENT, net (Tables) link:presentationLink link:calculationLink link:definitionLink 2415407 - Disclosure - PROPERTY and EQUIPMENT, net - Summary (Details) link:presentationLink link:calculationLink link:definitionLink 2416408 - Disclosure - PROPERTY and EQUIPMENT, net - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2417409 - Disclosure - PROPERTY and EQUIPMENT, net - Summary of Depreciation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 2118105 - Disclosure - CAPITALIZED SOFTWARE, net link:presentationLink link:calculationLink link:definitionLink 2319304 - Disclosure - CAPITALIZED SOFTWARE, net (Tables) link:presentationLink link:calculationLink link:definitionLink 2420410 - Disclosure - CAPITALIZED SOFTWARE, net - Capitalized Software (Details) link:presentationLink link:calculationLink link:definitionLink 2421411 - Disclosure - CAPITALIZED SOFTWARE, net - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2422412 - Disclosure - CAPITALIZED SOFTWARE, net - Schedule of Capitalized Software Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 2123106 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 2424413 - Disclosure - INCOME TAXES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2125107 - Disclosure - STOCK-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 2326305 - Disclosure - STOCK-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 2427414 - Disclosure - STOCK-BASED COMPENSATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2428415 - Disclosure - STOCK-BASED COMPENSATION - Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2429416 - Disclosure - STOCK-BASED COMPENSATION - Schedule of Restricted Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2430417 - Disclosure - STOCK-BASED COMPENSATION - Schedule of Payment Award (Details) link:presentationLink link:calculationLink link:definitionLink 2431418 - Disclosure - STOCK-BASED COMPENSATION - Schedule of Income Statement Location for Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 2132108 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 2133109 - Disclosure - ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES link:presentationLink link:calculationLink link:definitionLink 2334306 - Disclosure - ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2435419 - Disclosure - ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 2136110 - Disclosure - EMPLOYEE BENEFIT PLAN link:presentationLink link:calculationLink link:definitionLink 2437420 - Disclosure - EMPLOYEE BENEFIT PLAN (Details) link:presentationLink link:calculationLink link:definitionLink 2138111 - Disclosure - EARNINGS PER SHARE link:presentationLink link:calculationLink link:definitionLink 2339307 - Disclosure - EARNINGS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 2440421 - Disclosure - EARNINGS PER SHARE - Schedule of Earnings Per Share, Basic and Diluted (Details) link:presentationLink link:calculationLink link:definitionLink 2441422 - Disclosure - EARNINGS PER SHARE - Schedule of Antidilutive Securities (Details) link:presentationLink link:calculationLink link:definitionLink 2442423 - Disclosure - EARNINGS PER SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink