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LONG-TERM OBLIGATIONS (Tables)

9 Months Ended

Sep. 30, 2023

Debt Disclosure [Abstract]

Schedule of Debt

Letters of credit outstanding (in millions):

															September 30, 2023															December 31, 2022
$400 Million Facility															$	—																	$	—
$300 Million Facility															69.6																		70.4
Bilateral Arrangements															49.1																		48.0
Total															$	118.7																	$	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 September 30, 2023, as follows (in millions, except for quotes):

			Book Value						Quote						Fair Value
5% Notes			$	600.0					0.89500						$	537.0

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