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SEGMENT REPORTING - Revenue by Geographical Area (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | $ 15,878 | $ 1,582 | $ 46,102 | $ 24,785
Intellectual property operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 6,320 |  | 16,997 |
Industrial operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 9,558 |  | 29,105 |
Americas |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 10,525 |  | 29,029 |
Americas | Intellectual property operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 6,312 |  | 16,383 |
Americas | Industrial operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 4,213 |  | 12,646 |
United States |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 10,307 |  | 28,249 |
United States | Intellectual property operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 6,311 |  | 16,372 |
United States | Industrial operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 3,996 |  | 11,877 |
Canada and Latin America |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 218 |  | 780 |
Canada and Latin America | Intellectual property operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 1 |  | 11 |
Canada and Latin America | Industrial operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 217 |  | 769 |
Europe, Middle East and Africa |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 2,282 |  | 7,677 |
Europe, Middle East and Africa | Intellectual property operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 0 |  | 589 |
Europe, Middle East and Africa | Industrial operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 2,282 |  | 7,088 |
Asia Pacific |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 3,071 |  | 9,396 |
Asia Pacific | Intellectual property operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 8 |  | 25 |
Asia Pacific | Industrial operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 3,063 |  | 9,371 |
China |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 1,403 |  | 3,627 |
China | Intellectual property operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 0 |  | 0 |
China | Industrial operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 1,403 |  | 3,627 |
India |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 582 |  | 2,563 |
India | Intellectual property operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 0 |  | 0 |
India | Industrial operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 582 |  | 2,563 |
Asia-Pacific, excluding China and India |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 1,086 |  | 3,206 |
Asia-Pacific, excluding China and India | Intellectual property operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 8 |  | 25 |
Asia-Pacific, excluding China and India | Industrial operations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | $ 1,078 |  | $ 3,181 |

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