0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - BASIS OF PRESENTATION AND BACKGROUND link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - RECENTLY ISSUED ACCOUNTING STANDARDS link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - NONCONTROLLING INTERESTS link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - REVENUE link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - FIXED ASSETS, NET link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - INTANGIBLE ASSETS, NET link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - LONG-TERM DEBT link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - RELATED PARTIES link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - SEGMENT INFORMATION link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - SUBSEQUENT EVENT link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - RECENTLY ISSUED ACCOUNTING STANDARDS (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - NONCONTROLLING INTERESTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - FIXED ASSETS, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - INTANGIBLE ASSETS, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - SEGMENT INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - BASIS OF PRESENTATION AND BACKGROUND (Details) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - NONCONTROLLING INTERESTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - NONCONTROLLING INTERESTS - Changes in Ownership of OpCo Units in Nerdy LLC (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - REVENUE - Schedule of Revenue by Service (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - REVENUE - Schedule of Accounts Receivable, Net and Deferred Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - REVENUE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - LOSS PER SHARE - Schedule of Earnings Per Share, Basic and Diluted (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - LOSS PER SHARE - Schedule of Exclude From Weighted-average Shares For Diluted Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - FIXED ASSETS, NET - Schedule of Fixed Assets, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - FIXED ASSETS, NET - Schedule of Amortization Expense Related to Capitalized Internal Use Software and Depreciation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - INTANGIBLE ASSETS, NET (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - LONG-TERM DEBT (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - RELATED PARTIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - SEGMENT INFORMATION - Schedule of Segment Reporting Information, by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - SUBSEQUENT EVENT (Details) link:presentationLink link:calculationLink link:definitionLink