v3.26.1
FAIR VALUE MEASUREMENTS (Fair Value and Carrying Value of Debt) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, gross $ 2,851.6 $ 2,201.6
Unamortized deferred financing costs (37.6) (41.0)
Unamortized discount (11.7) (12.3)
Long-term debt 2,802.3 2,148.3
Long-term debt, Fair value 2,924.5 2,200.2
Long-term debt excluding current maturities, Fair value 2,924.5 2,200.2
Revolving Credit Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term line of credit [1] 750.0 100.0
Line of credit, Fair value [1] 750.0 100.0
2028 6.00% Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [2] 801.6 801.6
Long-term debt, Fair value [2] 801.6 794.6
2030 9.875% Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [2] 800.0 800.0
Long-term debt, Fair value [2] 858.7 824.3
2030 7.875% Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [2] 500.0 500.0
Long-term debt, Fair value [2] $ 514.2 $ 481.3
[1] The estimated fair value approximates carrying value, categorized as a Level 2 measurement, as these borrowings bear interest based upon short-term floating market interest rates.
[2] The estimated fair value, categorized as a Level 2 measurement, was calculated based on the present value of future expected payments utilizing implied current market interest rates based on quoted prices of the outstanding senior notes.