LONG-TERM OBLIGATIONS (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Schedule of Debt

Letters of credit outstanding (in millions):

	March 31, 2024		December 31, 2023
$400 Million Facility	$	—		$	—
$300 Million Facility	71.0			71.8
Bilateral Arrangements	46.8			48.1
Total	$	117.8		$	119.9

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, 2024, as follows (in millions, except for quotes):

	Book Value		Quote	Fair Value
5% Notes	$	600.0	0.94000	$	564.0