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SHORT-TERM AND LONG-TERM DEBT - Bonds Issued (Details) - Bonds - USD ($) | Sep. 30, 2025 | Jul. 09, 2025
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Short-Term Debt [Line Items] |  |
Principal Amount |  | $ 250,000,000
July 9, 2032 |  |
Short-Term Debt [Line Items] |  |
Principal Amount | $ 50,000,000 |
Interest Rate | 5.37% |
July 9, 2035 |  |
Short-Term Debt [Line Items] |  |
Principal Amount | $ 75,000,000 |
Interest Rate | 5.69% |
July 9, 2037 |  |
Short-Term Debt [Line Items] |  |
Principal Amount | $ 50,000,000 |
Interest Rate | 5.79% |
July 9, 2055 |  |
Short-Term Debt [Line Items] |  |
Principal Amount | $ 75,000,000 |
Interest Rate | 6.34% |

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