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Cover
Cover Page
Financial Statements
Condensed Consolidated Balance Sheets
Condensed Consolidated Balance Sheets (Parenthetical)
Condensed Consolidated Statements of Operations and Comprehensive Loss
Condensed Consolidated Statements of Stockholders' Equity (Deficit)
Condensed Consolidated Statements of Cash Flows
Notes to Financial Statements
DESCRIPTION OF THE BUSINESS AND ACCOUNTING POLICIES
BUSINESS COMBINATIONS
PROPERTY AND EQUIPMENT, NET
CAPITALIZED WEBSITE AND INTERNAL-USE SOFTWARE COSTS, NET
GOODWILL AND OTHER INTANGIBLE ASSETS, NET
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES
BORROWINGS
STOCKHOLDERS' EQUITY (DEFICIT)
STOCK-BASED COMPENSATION PLANS
RELATED PARTY TRANSACTIONS
LEASES
COMMITMENTS AND CONTINGENCIES
SEGMENT INFORMATION
NET LOSS PER SHARE
INCOME TAXES
SUBSEQUENT EVENTS
Accounting Policies
DESCRIPTION OF THE BUSINESS AND ACCOUNTING POLICIES (Policies)
Notes Tables
DESCRIPTION OF THE BUSINESS AND ACCOUNTING POLICIES (Tables)
BUSINESS COMBINATIONS (Tables)
PROPERTY AND EQUIPMENT, NET (Tables)
CAPITALIZED WEBSITE AND INTERNAL-USE SOFTWARE COSTS, NET (Tables)
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables)
STOCK-BASED COMPENSATION PLANS (Tables)
LEASES (Tables)
SEGMENT INFORMATION (Tables)
NET LOSS PER SHARE (Tables)
Notes Details
DESCRIPTION OF THE BUSINESS AND ACCOUNTING POLICIES - Narrative (Details)
DESCRIPTION OF THE BUSINESS AND ACCOUNTING POLICIES - Changes in the Fair Value of Level 3 Financial Instruments (Details)
DESCRIPTION OF THE BUSINESS AND ACCOUNTING POLICIES - Correction of Immaterial Error (Details)
BUSINESS COMBINATIONS - Narrative (Details)
BUSINESS COMBINATIONS - Total Fair Value of Purchase Price (Details)
BUSINESS COMBINATIONS - Unaudited Pro Forma (Details)
PROPERTY AND EQUIPMENT, NET - Schedule of Property and Equipment, Net (Details)
PROPERTY AND EQUIPMENT, NET - Narrative (Details)
CAPITALIZED WEBSITE AND INTERNAL-USE SOFTWARE COSTS, NET - Schedule of Capitalized Website and Internal-Use Software Development Costs, Net (Details)
CAPITALIZED WEBSITE AND INTERNAL-USE SOFTWARE COSTS, NET - Narrative (Details)
CAPITALIZED WEBSITE AND INTERNAL-USE SOFTWARE COSTS, NET - Annual Amortization Expense (Details)
GOODWILL AND OTHER INTANGIBLE ASSETS, NET (Details)
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details)
BORROWINGS (Details)
STOCKHOLDERS' EQUITY (DEFICIT) (Details)
STOCK-BASED COMPENSATION PLANS - Narrative (Details)
STOCK-BASED COMPENSATION PLANS - Employee and Non-Employee Stock Option Activity (Details)
STOCK-BASED COMPENSATION PLANS - Employee and Non-Employee Restricted Stock Unit Activity (Details)
RELATED PARTY TRANSACTIONS (Details)
LEASES - Lease Costs and Activity (Details)
LEASES - Operating Lease Liabilities by Maturity Date (Details)
LEASES - Narrative (Details)
COMMITMENTS AND CONTINGENCIES (Details)
SEGMENT INFORMATION - Narrative (Details)
SEGMENT INFORMATION - Reportable Segments Information (Details)
SEGMENT INFORMATION - Reconciliation of Reportable Segment Gross Profit to Net Loss and Comprehensive Loss Attributable to Common Stockholders (Details)
NET LOSS PER SHARE - Computation of Basic and Diluted Net Loss per Share Attributable to Common Stockholders (Details)
NET LOSS PER SHARE - Potentially Dilutive Shares not included in the Calculation of Diluted Shares Outstanding (Details)
INCOME TAXES (Details)
SUBSEQUENT EVENTS (Details)
All Reports