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Long-Term Debt
 3 Months Ended
Mar. 31, 2023
Debt Disclosure [Abstract]  
Long-Term Debt Long-Term Debt
A summary of long-term debt follows (in millions):
March 31,
2023		December 31,
2022
Senior secured term loan (1)
$1,370.1 $1,370.0 
6.750% senior unsecured notes due 2025
185.0 185.0 
10.000% senior unsecured notes due 2027
320.0 320.0 
Notes payable and other secured loans174.9 171.3 
Finance lease obligations553.5 585.7 
Less: unamortized debt issuance costs and discounts(9.7)(10.2)
Total debt2,593.8 2,621.8 
Less: Current maturities62.9 62.8 
Total long-term debt$2,530.9 $2,559.0 
(1)Includes unamortized fair value discount of $2.0 million and $2.1 million as of March 31, 2023 and December 31, 2022, respectively.
Revolving Credit Facility
On January 13, 2023, the Company entered into an amendment to the credit agreement governing its revolving credit facility (the "Revolver"), which amended and supplemented the credit agreement, dated as of August 31, 2017 (the "Credit Agreement"), to provide a $203.8 million increase in the outstanding commitments under the Revolver.
As of March 31, 2023, the Company's availability on its Revolver was $545.9 million (including outstanding letters of credit of $7.9 million). There were no outstanding borrowings under the Revolver as of both March 31, 2023 and December 31, 2022.