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SALE OF KANDY COMMUNICATIONS BUSINESS (Details) $ / shares in Units, $ in Thousands |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 08, 2021 shares | Feb. 19, 2021 day $ / shares | Dec. 01, 2020 USD ($) day $ / shares shares | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Aug. 29, 2022 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Decrease (increase) in fair value of investments |  |  |  | $ (41,291) | $ (71,252) | $ 30,296 |
Intangible assets, net |  |  |  | 294,728 | $ 350,730 |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  |  |  | Other (expense) income, net |
Variable Interest Entity, Not Primary Beneficiary | AVCT Investment |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Equity interest (as a percent) |  |  |  |  | 15.00% |  |
Licensing Agreements |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Intangible assets, net |  |  |  | 4,699 |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Fair value of AVCT units |  |  |  | 0 |  |  | $ 2,600
Decrease (increase) in fair value of investments |  |  |  | (41,300) |  |  |
Payments for settlement agreement |  |  |  |  |  |  | $ 2,500
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Licensing Agreements |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Intangible assets, net |  |  |  | $ 3,900 |  |  |
Kandy Communications Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Consideration from sale |  |  | $ 45,000 |  |  |  |
Principal amount of debentures |  |  | $ 1 |  |  |  |
Number of warrants acquired (in shares) | shares |  |  | 1 |  |  |  |
Number of shares entitled from warrant (in shares) | shares |  |  | 100 |  |  |  |
Par value of common stock (in dollars per share) | $ / shares |  |  | $ 0.0001 |  |  |  |
Number of AVCT Units acquired (in shares) | shares |  |  | 43,778 |  |  |  |
Interest rate (as a percent) |  |  | 10.00% |  |  |  |
Debenture, conversion price (in dollars per share) | $ / shares |  |  | $ 3.45 |  |  |  |
Debenture, stock price trigger (in dollars per share) | $ / shares |  | $ 6.00 | $ 6.00 |  |  |  |
Debenture, number of trading days | day |  | 40 | 40 |  |  |  |
Debenture, number of consecutive trading days | day |  | 60 | 60 |  |  |  |
Debt conversion, converted instrument, shares issued (in shares) | shares | 13,700,421 |  |  |  |  |  |
Number of shares of common stock entitled from warrants (in shares) | shares |  |  | 4,377,800 |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  | $ 0.01 |  |  |  |
Fair value of AVCT units |  |  | $ 84,900 |  | $ 43,900 |  |
Fair value of debentures |  |  | 66,300 |  |  |  |
Fair value of warrants |  |  | 18,600 |  |  |  |
Net assets sold |  |  | $ 1,300 |  |  |  |
Gain on sale |  |  |  |  |  | $ 83,600 |
Decrease (increase) in fair value of investments |  |  |  |  | (74,800) | $ 30,300 |
Loss partially offset principal of the debentures |  |  |  |  | $ 3,500 |  |

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