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Long-Term Debt - Narrative (Details)
1 Months Ended 12 Months Ended
Apr. 30, 2010
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2025
USD ($)
Sep. 30, 2023
Sep. 30, 2022
Aug. 31, 2022
Mar. 31, 2022
USD ($)
Sep. 30, 2021
USD ($)
May 31, 2019
USD ($)
Apr. 30, 1998
USD ($)
Debt Instrument [Line Items]                        
Accrued interest expense   $ 300,000 $ 400,000                  
Debt issuance costs                     $ 9,700,000  
Debt issuance costs capitalized                     9,600,000  
Gain (loss) on extinguishment of debt   (1,500,000)                    
Unamortized costs                     $ 14,600,000  
Amortization of debt issuance costs   $ 4,935,000 5,077,000 $ 5,434,000                
Percentage of principle balance   50.00%                    
Liability for interest rate swap agreements   $ 80,400,000 47,700,000                  
Market value adjustments on interest rate swaps, net of tax   (24,975,000) (33,912,000) (10,377,000)                
Interest (expense) income, pre-tax   (21,300,000) (3,200,000) (3,500,000)                
Interest expense, pre-tax to be reclassified during next 12 months   30,000,000.0                    
Interest Rate Swaps                        
Debt Instrument [Line Items]                        
Remaining balance of interest rate swap notional amount   $ 1,200,000,000                    
Weighted average fixed interest rate   2.39%                    
Asset for Swaps   $ 100,000 600,000                  
Interest Rate Swaps | Forecast                        
Debt Instrument [Line Items]                        
Remaining balance of interest rate swap notional amount         $ 500,000,000.0       $ 1,000,000,000.0 $ 1,100,000,000    
Weighted average fixed interest rate         2.64%     2.77% 2.78% 2.66%    
Swap                        
Debt Instrument [Line Items]                        
Market value adjustments on interest rate swaps, net of tax   (25,000,000.0) (33,900,000) (10,400,000)                
Deferred taxes on interest rate swaps   $ 8,300,000 $ 11,300,000 $ 3,400,000                
Minimum | Interest Rate Swaps                        
Debt Instrument [Line Items]                        
Weighted average fixed interest rate   1.03%                    
Maximum | Interest Rate Swaps                        
Debt Instrument [Line Items]                        
Weighted average fixed interest rate   2.98%                    
Line of Credit Due May 2024 | Revolving line of credit                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity   $ 750,000,000.0                    
Term of loan   5 years                    
Multicurrency revolving sub-facility   $ 100,000,000.0                    
Letter of credit sub-facility   $ 50,000,000.0                    
Credit Agreement | Minimum                        
Debt Instrument [Line Items]                        
Revolving credit facility, commitment fee percentage   0.20%                    
Credit Agreement | Maximum                        
Debt Instrument [Line Items]                        
Revolving credit facility, commitment fee percentage   0.35%                    
Credit Agreement | Federal Funds Effective Rate Plus                        
Debt Instrument [Line Items]                        
Basis of spread on variable rate on debt   0.50%                    
Credit Agreement | Adjusted LIBOR                        
Debt Instrument [Line Items]                        
Basis of spread on variable rate on debt   1.00%                    
Credit Agreement | Alternate Base Rate                        
Debt Instrument [Line Items]                        
Basis of spread on variable rate on debt   0.75%                    
Credit Agreement | Alternate Base Rate | Minimum                        
Debt Instrument [Line Items]                        
Basis of spread on variable rate on debt   0.25%                    
Credit Agreement | Alternate Base Rate | Maximum                        
Debt Instrument [Line Items]                        
Basis of spread on variable rate on debt   1.00%                    
Credit Agreement | Adjusted Eurocurrency Rate                        
Debt Instrument [Line Items]                        
Basis of spread on variable rate on debt   1.75%                    
Credit Agreement | Adjusted Eurocurrency Rate | Minimum                        
Debt Instrument [Line Items]                        
Basis of spread on variable rate on debt   1.25%                    
Credit Agreement | Adjusted Eurocurrency Rate | Maximum                        
Debt Instrument [Line Items]                        
Basis of spread on variable rate on debt   2.00%                    
Term Loan Facility                        
Debt Instrument [Line Items]                        
Potential increase to term loan and line of credit   $ 300,000,000.0                    
Term Loan Facility | Term Loan Due May 2024                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity   $ 1,800,000,000                    
Term of loan   5 years                    
Term Loan Facility | Term Loan Due May 2024 | Debt Instrument, Redemption, Period One                        
Debt Instrument [Line Items]                        
Term Facility, periodic payment   $ 21,900,000                    
Line of Credit | Forecast                        
Debt Instrument [Line Items]                        
Debt covenants, leverage ratio           3.75 4.00     4.25    
Line of Credit | Minimum                        
Debt Instrument [Line Items]                        
Debt covenants, interest coverage ratio   3.00                    
Line of Credit | Maximum                        
Debt Instrument [Line Items]                        
Debt covenants, leverage ratio   4.50                    
Line of Credit | Revolving line of credit                        
Debt Instrument [Line Items]                        
Remaining borrowing capacity   $ 450,000,000.0                    
Senior Notes | 7.55% senior debentures due April 2028                        
Debt Instrument [Line Items]                        
Debt instrument, stated rate percentage   7.55%                   7.55%
Debt instrument, face amount                       $ 100,000,000.0
Senior Notes | 7.55% senior debentures due April 2028 | Minimum                        
Debt Instrument [Line Items]                        
Percentage of outstanding debentures 50.00%