FAIR VALUE MEASUREMENTS - Schedule of Fixed Rate Long-Term Debt (Details) - USD ($) $ in Millions |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Public bonds | $ 2,221.8 | $ 2,244.4 |
| Public Bonds | Level 1 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Public bonds | 2,083.9 | 2,062.2 |
| Public Bonds | Level 2 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Public bonds | 0.0 | 0.0 |
| Carrying value (excluding discount) | Public Bonds | Level 1 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Public bonds | 2,221.8 | 2,244.4 |
| Carrying value (excluding discount) | Public Bonds | Level 2 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Public bonds | $ 0.0 | $ 0.0 |