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LONG-TERM OBLIGATIONS LONG TERM OBLIGATIONS (Tables)
 9 Months Ended
Sep. 30, 2022
Debt Disclosure [Abstract]  
Schedule of Debt
Letters of credit outstanding (in millions):
September 30, 2022December 31, 2021
$400 Million Facility$— $— 
$300 Million Facility68.0 62.8 
Bilateral Arrangements46.3 45.0 
Total$114.3 $107.8 
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments
The Company estimates the fair values of its debt set forth below as of September 30, 2022, as follows (in millions, except for quotes):
 Book ValueQuoteFair Value
5% Notes$600.0 0.84000 $504.0 
Original Term Loan (net of discount)$54.9 0.99500 $54.6