BASIS OF PRESENTATION - Investment (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Feb. 05, 2026 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Investments | |||||
| Proceeds from sale of Hycroft | $ 29.7 | ||||
| Loss (gains) on investment | $ (15.9) | $ (11.8) | |||
| Impairment of equity security without readily determinable fair value | $ 10.3 | 10.3 | |||
| Remaining carrying value | 0.0 | 0.0 | |||
| Hycroft | |||||
| Investments | |||||
| Common shares to purchase upon exercise of remaining warrants | 1,000,824 | ||||
| Shares received from exercise of warrants | 765,440 | ||||
| Number of shares sold | 700,000 | ||||
| Proceeds from sale of Hycroft | $ 29.7 | ||||
| Common shares remaining | 129,478 | 129,478 | |||
| Hycroft | Location, Statement of Income, Balance [Axis]: us-gaap:InvestmentIncomeNet | |||||
| Investments | |||||
| Loss (gains) on investment | $ 0.6 | $ (9.3) | $ (15.9) | $ (11.8) | |
| X | ||||||||||
- Definition The number of shares retained under the equity method of accounting. No definition available.
|
| X | ||||||||||
- Definition Number of common shares to purchase upon exercise of warrants under the equity method of accounting. No definition available.
|
| X | ||||||||||
- Definition The number of shares sold out of the shares purchased under the equity method of accounting. No definition available.
|
| X | ||||||||||
- Definition Number of shares received upon exercise of warrants of the investee company. No definition available.
|
| X | ||||||||||
- Definition Amount of investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of impairment loss on investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of realized and unrealized gain (loss) on investment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|