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INVESTMENT IN EQUITY SECURITIES - Narrative (Details) € in Thousands |  |  |  |  |  |  | 7 Months Ended | 9 Months Ended | 12 Months Ended | 72 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 23, 2025 USD ($) | Jul. 02, 2025 USD ($) | Oct. 22, 2024 USD ($) | Apr. 26, 2024 USD ($) | Jul. 07, 2021 USD ($) | Apr. 01, 2020 USD ($) | Jul. 28, 2025 USD ($) | Sep. 30, 2025 USD ($) shares | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) shares | Dec. 31, 2009 EUR (€) | Dec. 31, 2024 USD ($) | Mar. 31, 2021
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Investment impairment |  |  |  |  |  |  |  | $ 0 | $ 0 |  |  |  |
BTY |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchases from related party |  |  |  |  |  |  | $ 7,400,000 |  | $ 8,700,000 |  |  |  |
Accounts payable and other accrued liabilities |  |  |  |  |  |  | $ 2,100,000 |  |  | $ 2,500,000 |  | $ 2,500,000 |
Dianosic |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in equity securities | $ 4,100,000 |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage of equity method investment | 21.00% |  |  |  |  |  |  |  |  |  |  |  |
Goldrain |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in equity securities |  |  | $ 99,000,000 |  |  |  |  |  |  |  |  |  |
Ownership percentage of equity method investment |  |  | 40.00% |  |  |  |  |  |  |  |  |  |
Sonmol |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in equity securities |  |  |  |  |  | $ 5,000,000 |  |  |  |  |  |  |
Ownership percentage of equity method investment |  |  |  |  |  | 30.00% |  |  |  |  |  |  |
Others |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in equity securities | € |  |  |  |  |  |  |  |  |  |  | € 574 |  |
Ownership percentage of equity method investment |  |  |  |  |  |  |  |  |  |  | 23.00% |  |
Yangi |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in equity securities |  | $ 3,200,000 |  |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  | 0.10 |  |  |  |  |  |  |  |  |  |  |
Loop | Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in equity securities |  |  |  |  |  |  |  |  |  |  |  | 2,900,000 |
PureCycle |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  | 0.01
PureCycle | Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in equity securities |  |  |  |  |  |  |  |  |  |  |  | 3,000,000 |
Equity received in exchange for services |  |  |  | $ 200,000 |  |  |  |  |  |  |  | $ 700,000 |
Purecycle | Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold (in shares) | shares |  |  |  |  |  |  |  | 0 |  | 0 |  |  |
YAT |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in equity securities |  |  |  |  | $ 5,900,000 |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  | 0.10 |  |  |  |  |  |  |  |
BTY Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Beneficial ownership percentage |  |  |  |  |  |  | 49.00% |  |  |  |  |  |
Total ownership percentage |  |  |  |  |  |  | 80.00% |  |  |  |  |  |

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