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LONG-TERM OBLIGATIONS LONG TERM OBLIGATIONS (Tables) | 3 Months Ended
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Mar. 31, 2023
Debt Disclosure [Abstract] |
Schedule of Debt | Letters of credit outstanding (in millions):
|  | March 31, 2023 |  |  |  |  | December 31, 2022
$400 Million Facility |  |  |  |  | $ | — |  |  |  |  |  |  | $ | — |
$300 Million Facility |  |  |  |  | 70.9 |  |  |  |  |  |  | 70.4 |
Bilateral Arrangements |  |  |  |  | 52.2 |  |  |  |  |  |  | 48.0 |
Total |  |  |  |  | $ | 123.1 |  |  |  |  |  |  | $ | 118.4 |
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments | The Company estimates the fair value of its debt set forth below as of March 31, 2023, as follows (in millions, except for quotes):
| Book Value |  | Quote |  | Fair Value
5% Notes | $ | 600.0 |  |  | 0.92750 |  |  | $ | 556.5 |

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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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