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Debt - Schedule of Debt and Finance Lease Obligations (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Aug. 18, 2020
Dec. 31, 2019
Debt Instrument      
Total debt $ 1,515,500,000   $ 1,521,000,000.0
Less: current installments of long-term debt 7,400,000   7,800,000
Total long-term debt 1,508,100,000   1,513,200,000
Domestic Line of Credit | USD Term Loan      
Debt Instrument      
Debt face amount 750,000,000    
Total debt 727,500,000   733,400,000
Unamortized premiums, discounts and debt issuance costs $ 7,600,000   $ 9,100,000
Effective interest rate percentage 2.40%   2.20%
Domestic Line of Credit | USD Term Loan | LIBOR      
Debt Instrument      
Spread on variable rate (percent) 2.00%    
Senior Notes      
Debt Instrument      
Stated interest rate (percent) 3.875%    
Unamortized premiums, discounts and debt issuance costs     $ 13,300,000
Effective interest rate percentage     6.20%
Senior Notes | USD Senior Notes Due 2028      
Debt Instrument      
Debt face amount $ 800,000,000    
Stated interest rate (percent) 3.875% 3.875%  
Total debt $ 788,000,000.0   $ 0
Unamortized premiums, discounts and debt issuance costs $ 12,000,000.0    
Effective interest rate percentage 4.10%    
Senior Notes | USD Senior Notes Due 2025      
Debt Instrument      
Debt face amount $ 800,000,000    
Stated interest rate (percent) 5.875%    
Total debt $ 0   786,700,000
Other      
Debt Instrument      
Total debt $ 0   $ 900,000