BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)
$ in Thousands |
|
12 Months Ended |
|
Sep. 20, 2021 |
Dec. 31, 2021
USD ($)
segment
director
|
Dec. 31, 2020
USD ($)
|
Dec. 31, 2019
USD ($)
|
Jan. 01, 2019
USD ($)
|
| Franchisor Disclosure [Line Items] |
|
|
|
|
|
| Exchange ratio in reverse recapitalization |
0.64
|
|
|
|
|
| Net Loss |
|
$ (3,779)
|
$ 0
|
$ 0
|
|
| Net loss after the reverse recapitalization |
|
3,354
|
0
|
0
|
|
| Net loss attributable to legacy Nerdy holders prior to the reverse recapitalization |
|
$ 23,546
|
24,663
|
22,439
|
|
| Right to appoint, number of directors | director |
|
3
|
|
|
|
| Total number of directors | director |
|
5
|
|
|
|
| Number of operating segments | segment |
|
1
|
|
|
|
| Accumulated deficit |
|
$ (439,708)
|
(412,383)
|
|
$ 16,767
|
| Deferred revenue |
|
|
|
3,911
|
|
| Prepaid expenses |
|
3,590
|
574
|
|
|
| Goodwill |
|
$ 5,717
|
5,717
|
|
|
| Useful life of definite-lived intangible assets |
|
10 years
|
|
|
|
| Advertising expenses |
|
$ 44,393
|
29,293
|
20,550
|
|
| Defined contribution plan |
|
$ 337
|
$ 138
|
$ 269
|
|
| Earnout Shares |
|
|
|
|
|
| Franchisor Disclosure [Line Items] |
|
|
|
|
|
| Earn-out consideration subject to forfeiture if achievement of stock price thresholds are not met within closing date |
5 years
|
|
|
|
|
| Leasehold improvements |
|
|
|
|
|
| Franchisor Disclosure [Line Items] |
|
|
|
|
|
| Useful life of long-lived assets |
|
7 years
|
|
|
|
| Capitalized internal use software |
|
|
|
|
|
| Franchisor Disclosure [Line Items] |
|
|
|
|
|
| Useful life of long-lived assets |
|
4 years
|
|
|
|
| Minimum | Furniture & fixtures |
|
|
|
|
|
| Franchisor Disclosure [Line Items] |
|
|
|
|
|
| Useful life of long-lived assets |
|
1 year
|
|
|
|
| Minimum | Office equipment |
|
|
|
|
|
| Franchisor Disclosure [Line Items] |
|
|
|
|
|
| Useful life of long-lived assets |
|
1 year
|
|
|
|
| Minimum | Other |
|
|
|
|
|
| Franchisor Disclosure [Line Items] |
|
|
|
|
|
| Useful life of long-lived assets |
|
1 year
|
|
|
|
| Maximum | Furniture & fixtures |
|
|
|
|
|
| Franchisor Disclosure [Line Items] |
|
|
|
|
|
| Useful life of long-lived assets |
|
7 years
|
|
|
|
| Maximum | Office equipment |
|
|
|
|
|
| Franchisor Disclosure [Line Items] |
|
|
|
|
|
| Useful life of long-lived assets |
|
3 years
|
|
|
|
| Maximum | Other |
|
|
|
|
|
| Franchisor Disclosure [Line Items] |
|
|
|
|
|
| Useful life of long-lived assets |
|
4 years
|
|
|
|