v3.26.1
Debt - Outstanding (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Debt Instrument [Line Items]          
Debt outstanding $ 5,585.3   $ 5,585.3   $ 5,103.8
Other Long-Term Debt 16.4   16.4   22.1
Less short-term debt and current portion of long-term debt (213.1)   (213.1)   (196.9)
Total long-term debt 5,372.2   5,372.2   4,906.9
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax (4.4) $ 29.5 (13.8) $ 66.6  
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax 3.3 $ (22.1) 10.3 $ (49.9)  
Interest Rate Swap          
Debt Instrument [Line Items]          
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months     28.3    
2021 Interest Rate Swap          
Debt Instrument [Line Items]          
Notional amount $ 1,528.0   $ 1,528.0    
2021 Interest Rate Swap | Minimum          
Debt Instrument [Line Items]          
Derivative, Fixed Interest Rate 1.38%   1.38%    
2021 Interest Rate Swap | Maximum          
Debt Instrument [Line Items]          
Derivative, Fixed Interest Rate 1.3915%   1.3915%    
Senior Secured Term Loan B-5          
Debt Instrument [Line Items]          
Debt outstanding $ 104.5   $ 104.5   $ 104.4
Debt Instrument, Maturity Date     Nov. 15, 2026    
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate 5.49%   5.49%   5.57%
Debt Instrument, Unamortized Discount (Premium), Net $ 0.1   $ 0.1    
Debt Issuance Costs, Noncurrent, Net 0.1   0.1    
Senior Secured Term Loan B-7          
Debt Instrument [Line Items]          
Debt outstanding $ 1,840.8   $ 1,840.8   $ 1,848.8
Debt Instrument, Maturity Date     Jun. 24, 2031    
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate 5.39%   5.39%   5.47%
Debt Instrument, Unamortized Discount (Premium), Net $ 6.3   $ 6.3   $ 6.8
Debt Issuance Costs, Noncurrent, Net 10.2   10.2   11.1
Senior Secured Revolving Credit Facility, payable at any time without penalty no later than June 24, 2029, with periodic variable interest at Term SOFR, or alternate base rate, plus applicable margin (4.90% at June 30, 2026)          
Debt Instrument [Line Items]          
Debt outstanding $ 520.0   $ 520.0   0.0
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate 4.90%   4.90%    
Senior Secured Term Loan A-4          
Debt Instrument [Line Items]          
Debt outstanding $ 1,224.4   $ 1,224.4   $ 1,240.2
Debt Instrument, Maturity Date     Jun. 24, 2029    
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate 4.89%   4.89%   4.97%
Debt Instrument, Unamortized Discount (Premium), Net $ 0.2   $ 0.2   $ 0.3
Debt Issuance Costs, Noncurrent, Net 2.3   2.3   2.6
Senior Secured Term Loan B-8          
Debt Instrument [Line Items]          
Debt outstanding $ 1,879.3   $ 1,879.3   $ 1,888.3
Debt Instrument, Maturity Date     Jun. 24, 2031    
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate 5.39%   5.39%   5.47%
Debt Instrument, Unamortized Discount (Premium), Net $ 3.3   $ 3.3   $ 3.6
Debt Issuance Costs, Noncurrent, Net $ 4.9   $ 4.9   $ 5.3