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INVESTMENT IN EQUITY SECURITIES - Narrative (Details) € in Thousands |  |  |  |  |  | 9 Months Ended | 12 Months Ended | 60 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 22, 2024 USD ($) | Apr. 26, 2024 USD ($) | Jul. 07, 2021 USD ($) | Apr. 01, 2020 USD ($) | Jan. 01, 2020 USD ($) company | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2009 EUR (€) | Dec. 31, 2023 USD ($) | Mar. 31, 2021
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment impairment |  |  |  |  |  | $ 0 | $ 0 |  |  |
Goldrain | Subsequent Event |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership percentage of equity method investment | 40.00% |  |  |  |  |  |  |  |  |
Investment in equity securities | $ 99,000,000 |  |  |  |  |  |  |  |  |
BTY |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership percentage of equity method investment |  |  |  |  | 49.00% |  |  |  |  |
Investment in equity securities |  |  |  |  | $ 32,000,000.0 |  |  |  |  |
Number of related companies | company |  |  |  |  | 3 |  |  |  |  |
Initial lock-up period (in years) |  |  |  |  | 5 years |  |  |  |  |
Second lock-up period (in years) |  |  |  |  | 3 years |  |  |  |  |
Purchases from related party |  |  |  |  |  | 8,700,000 | $ 10,700,000 |  |  |
Accounts payable and other accrued liabilities |  |  |  |  |  | $ 2,000,000 |  |  | $ 1,800,000 |
BTY | Call Option | Minimum |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership percentage of equity method investment |  |  |  |  | 26.00% |  |  |  |  |
BTY | Call Option | Maximum |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership percentage of equity method investment |  |  |  |  | 31.00% |  |  |  |  |
Sonmol |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership percentage of equity method investment |  |  |  | 30.00% |  |  |  |  |  |
Investment in equity securities |  |  |  | $ 5,000,000 |  |  |  |  |  |
Desotec GmbH |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership percentage of equity method investment |  |  |  |  |  |  |  | 23.00% |  |
Investment in equity securities | € |  |  |  |  |  |  |  | € 574 |  |
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 |
YAT |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment in equity securities |  |  | $ 5,900,000 |  |  |  |  |  |  |
Investment ownership percentage |  |  | 0.10 |  |  |  |  |  |  |

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