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Long-term Debt (Tables)
6 Months Ended
Jun. 30, 2023
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt Outstanding
Our long-term debt outstanding consists of the following (in millions):
June 30,
2023
December 31, 2022
Credit Agreement—
Advances under revolving credit facility$180.0 $190.0 
Term loan A facility377.8 387.9 
Finance lease obligations4.0 5.2 
561.8 583.1 
Less current portion(22.5)(23.1)
Long-term debt, net of current portion$539.3 $560.0 
Schedule of Principal Payments Due on Long-term Debt
The following table shows scheduled principal payments due on long-term debt for the next five years (in millions):
Amount
July 1 through December 31, 2023$11.4 
202421.8 
202520.7 
202620.1 
2027490.0 
Gross maturities564.0 
Less unamortized debt issuance costs(2.2)
Total$561.8 
Schedule of Carrying Values and Estimated Fair Values of Long-term Debt
The carrying amounts and estimated fair values of our long-term debt are presented in the following table (in millions):
As of June 30, 2023As of December 31, 2022
Carrying AmountEstimated Fair ValueCarrying AmountEstimated Fair Value
Long-term debt:
Advances under revolving credit facility$180.0 $180.0 $190.0 $190.0 
Term loan A facility377.8 355.5 387.9 356.6 
Finance lease obligations4.0 4.0 5.2 5.2