v3.25.2
LONG TERM DEBT & AVAILABLE FACILITIES - Schedule of Debt (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Mar. 20, 2025
Jan. 17, 2025
Jun. 30, 2025
Dec. 31, 2024
Jun. 29, 2025
Apr. 02, 2025
Dec. 16, 2024
LONG TERM DEBT & AVAILABLE FACILITIES              
Par Value     $ 2,508.7 $ 2,475.4      
Unamortized Debt Premium and (Discount)     36.6 (27.0)      
Carrying Amount     2,545.3 2,448.4      
Unamortized Deferred Financing Fees     (54.1) (36.8)      
Total Debt, Less Unamortized Deferred Financing Fees     2,491.2 2,411.6      
Less: current portion     (170.0) (210.9)      
Total long-term debt, net of unamortized deferred financing fees     $ 2,321.2 $ 2,200.7      
Senior Notes Due 2029 7.625%              
LONG TERM DEBT & AVAILABLE FACILITIES              
Interest rate     7.625%       7.625%
Par Value     $ 383.8        
Unamortized Debt Premium and (Discount)     60.3       $ 67.0
Carrying Amount     444.1        
Unamortized Deferred Financing Fees     (25.8)       (20.0)
Total Debt, Less Unamortized Deferred Financing Fees     418.3        
2029 Senior Notes              
LONG TERM DEBT & AVAILABLE FACILITIES              
Interest rate       5.125%      
Par Value       $ 447.0     $ 379.5
Carrying Amount       447.0      
Unamortized Deferred Financing Fees       (9.3)      
Total Debt, Less Unamortized Deferred Financing Fees       $ 437.7      
Repayments of senior debt $ 0.5            
Capitalized amount         $ 2.4    
2025 Senior Notes              
LONG TERM DEBT & AVAILABLE FACILITIES              
Interest rate   5.375%   5.375%      
Par Value   $ 115.0   $ 115.0      
Carrying Amount       115.0      
Unamortized Deferred Financing Fees   (0.2)   (0.2)      
Total Debt, Less Unamortized Deferred Financing Fees       114.8      
Less: current portion       $ (115.0)      
Repayments of senior debt     $ 115.0        
2028 Term Loan B              
LONG TERM DEBT & AVAILABLE FACILITIES              
Interest rate at end of period (as a percent)     7.09% 7.276%      
Par Value     $ 720.0 $ 723.8      
Unamortized Debt Premium and (Discount)     (1.6) (1.9)      
Carrying Amount     718.4 721.9      
Unamortized Deferred Financing Fees     (7.9) (9.2)      
Total Debt, Less Unamortized Deferred Financing Fees     $ 710.5 $ 712.7      
Original issue discount rate     0.50% 0.50%      
2026 Revolving Facility              
LONG TERM DEBT & AVAILABLE FACILITIES              
Maximum borrowing amount       $ 375.0      
Letters of credit, amount outstanding       20.8      
Funds available for borrowings       $ 91.7      
OpCo Super-Priority Revolver              
LONG TERM DEBT & AVAILABLE FACILITIES              
Unamortized Deferred Financing Fees   (2.5)          
Maximum borrowing amount   300.0 $ 300.0        
Letters of credit, amount outstanding     60.0        
Funds available for borrowings     $ 271.0        
Percentage of Revolving Facility borrowing capacity covenant trigger     30.00%        
Commitment fee (as a percent)     0.375%        
Remaining borrowing amount     $ 29.0        
OpCo Super-Priority Revolver | Letter of Credit [Member]              
LONG TERM DEBT & AVAILABLE FACILITIES              
Percentage of Revolving Facility borrowing capacity covenant trigger     1.50%        
2028 Refinance Term Loans              
LONG TERM DEBT & AVAILABLE FACILITIES              
Interest rate at end of period (as a percent)     12.742% 13.158%      
Par Value     $ 1,250.1 $ 1,108.3      
Unamortized Debt Premium and (Discount)     (22.1) (25.1)      
Carrying Amount     1,228.0 1,083.2      
Unamortized Deferred Financing Fees     (20.4) (18.1)      
Total Debt, Less Unamortized Deferred Financing Fees     1,207.6 $ 1,065.1      
Funds available for borrowings     $ 271.0        
Original issue discount rate     3.00% 3.00%      
Liquidity balance     $ 399.1        
Liquidity balance needed for Refinance Agreement   $ 100.0          
Cash and cash equivalents     128.1        
Percentage of additional margin on the deferral interest under the paid in kind interest election   1.00%          
Capitalized amount         $ 16.4 $ 15.8  
Accounts Receivable Securitization Facility              
LONG TERM DEBT & AVAILABLE FACILITIES              
Par Value     150.0 $ 75.0      
Carrying Amount     150.0 75.0      
Total Debt, Less Unamortized Deferred Financing Fees     150.0 75.0      
Less: current portion     (150.0) (75.0)      
Maximum borrowing amount     150.0 150.0      
Letters of credit, amount outstanding     150.0 75.0      
Accounts receivable available to support facility     155.3 125.0      
Remaining borrowing amount     0.0 50.0      
Other Indebtedness              
LONG TERM DEBT & AVAILABLE FACILITIES              
Par Value     4.8 6.3      
Carrying Amount     4.8 6.3      
Total Debt, Less Unamortized Deferred Financing Fees     4.8 6.3      
2028 Term Loan B and the 2028 Refinance Term Loans              
LONG TERM DEBT & AVAILABLE FACILITIES              
Less: current portion     $ (18.3) $ (18.3)