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LONG-TERM DEBT - Senior Secured Notes Narrative (Details) $ in Millions | Feb. 21, 2023 USD ($) | Feb. 07, 2022 USD ($) item | Sep. 30, 2025 | Dec. 31, 2024 | Jan. 31, 2022 USD ($) | Feb. 12, 2021 USD ($)
--- | --- | --- | --- | --- | --- | ---
Line of Credit Facility [Line Items] |  |  |  |  |  |
Proceeds from the offering, net of related expenses and discounts | $ 34.0 |  |  |  |  |
Senior Secured Notes Due 2028 | Senior Secured Notes |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Proceeds from Senior Secured Notes due 2028 borrowings | 40.0 |  |  |  |  |
Number of Supplemental Indentures Entered | item |  | 3 |  |  |  |
Senior Secured Notes Due 2028 | Senior Secured Notes |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Aggregate principal amount | $ 450.0 |  |  |  |  | $ 310.0
Additional principal amount of debt issued |  | $ 100.0 |  |  |  |
Issue price, percentage |  | 102.00% |  |  |  |
Interest rate |  | 8.25% | 8.25% | 8.25% |  | 8.25%
Borrowed funds designated for constructing project |  |  |  |  | $ 221.0 | $ 180.0

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