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SEGMENT REPORTING - Segment income and expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Mar. 31, 2021 | Jun. 30, 2021 | Sep. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Revenues: |  |  |  |  |
Revenues |  |  |  | $ 88,047 | $ 29,782
Other operating expenses: |  |  |  |  |
Engineering and development expenses - industrial operations |  |  |  | 200 | 0
Sales and marketing expenses - industrial operations |  |  |  | 1,538 | 0
Amortization of intangible assets |  |  |  | 10,300 | 4,700
General and administrative expenses |  |  |  | 35,666 | 24,476
Operating income (loss) |  |  |  | 14,545 | (19,518)
Total other income (expense) | $ (157,879) | $ (139,347) | $ (36,857) | 160,107 | 127,590
Income before income taxes |  |  |  | 174,652 | 108,072
Parent Company |  |  |  |  |
Other operating expenses: |  |  |  |  |
General and administrative expenses |  |  |  | 26,692 | 19,500
Intellectual property operations |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 76,043 |
Intellectual property operations | Parent Company |  |  |  |  |
Other operating expenses: |  |  |  |  |
General and administrative expenses |  |  |  |  | $ 5,000
Industrial operations |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 12,004 |
Operating Segments |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 88,047 |
Cost of revenues: |  |  |  |  |
Inventor royalties |  |  |  | 1,142 |
Contingent legal fees |  |  |  | 12,074 |
Litigation and licensing expenses |  |  |  | 5,462 |
Amortization of patents |  |  |  | 9,851 |
Other patent portfolio expense (income) |  |  |  | 162 |
Cost of sales |  |  |  | 7,407 |
Total cost of revenues |  |  |  | 36,098 |
Segment gross profit |  |  |  | 51,949 |
Other operating expenses: |  |  |  |  |
Engineering and development expenses - industrial operations |  |  |  | 200 |
Sales and marketing expenses - industrial operations |  |  |  | 1,538 |
Amortization of intangible assets |  |  |  | 399 |
General and administrative expenses |  |  |  | 8,575 |
Total other operating expenses |  |  |  | 10,712 |
Operating income (loss) |  |  |  | 41,237 |
Operating Segments | License fees |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 76,043 |
Operating Segments | Printers and parts |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 4,961 |
Operating Segments | Consumable products |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 5,973 |
Operating Segments | Services |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 1,070 |
Operating Segments | Intellectual property operations |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 76,043 |
Cost of revenues: |  |  |  |  |
Inventor royalties |  |  |  | 1,142 |
Contingent legal fees |  |  |  | 12,074 |
Litigation and licensing expenses |  |  |  | 5,462 |
Amortization of patents |  |  |  | 9,851 |
Other patent portfolio expense (income) |  |  |  | 162 |
Cost of sales |  |  |  | 0 |
Total cost of revenues |  |  |  | 28,691 |
Segment gross profit |  |  |  | 47,352 |
Other operating expenses: |  |  |  |  |
Engineering and development expenses - industrial operations |  |  |  | 0 |
Sales and marketing expenses - industrial operations |  |  |  | 0 |
Amortization of intangible assets |  |  |  | 0 |
General and administrative expenses |  |  |  | 6,177 |
Total other operating expenses |  |  |  | 6,177 |
Operating income (loss) |  |  |  | 41,175 |
Operating Segments | Intellectual property operations | License fees |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 76,043 |
Operating Segments | Intellectual property operations | Printers and parts |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 0 |
Operating Segments | Intellectual property operations | Consumable products |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 0 |
Operating Segments | Intellectual property operations | Services |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 0 |
Operating Segments | Industrial operations |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 12,004 |
Cost of revenues: |  |  |  |  |
Inventor royalties |  |  |  | 0 |
Contingent legal fees |  |  |  | 0 |
Litigation and licensing expenses |  |  |  | 0 |
Amortization of patents |  |  |  | 0 |
Other patent portfolio expense (income) |  |  |  | 0 |
Cost of sales |  |  |  | 7,407 |
Total cost of revenues |  |  |  | 7,407 |
Segment gross profit |  |  |  | 4,597 |
Other operating expenses: |  |  |  |  |
Engineering and development expenses - industrial operations |  |  |  | 200 |
Sales and marketing expenses - industrial operations |  |  |  | 1,538 |
Amortization of intangible assets |  |  |  | 399 |
General and administrative expenses |  |  |  | 2,398 |
Total other operating expenses |  |  |  | 4,535 |
Operating income (loss) |  |  |  | 62 |
Operating Segments | Industrial operations | License fees |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 0 |
Operating Segments | Industrial operations | Printers and parts |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 4,961 |
Operating Segments | Industrial operations | Consumable products |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | 5,973 |
Operating Segments | Industrial operations | Services |  |  |  |  |
Revenues: |  |  |  |  |
Revenues |  |  |  | $ 1,070 |

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