XML 88 R69.htm IDEA: XBRL DOCUMENT v3.22.0.1
Debt - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]      
Debt $ 2,490,400,000 $ 2,312,100,000  
Repayments of long-term debt 33,000,000.0 350,000,000.0 $ 510,000,000.0
Repurchase of junior convertible securities, equity impact 7,100,000    
Additional Paid-In Capital      
Debt Instrument [Line Items]      
Repurchase of junior convertible securities, equity impact 7,100,000    
Senior bank debt      
Debt Instrument [Line Items]      
Debt 349,900,000 349,800,000  
Senior bank debt | Revolver      
Debt Instrument [Line Items]      
Available borrowing 1,250,000,000    
Additional borrowing amount 500,000,000    
Outstanding borrowings 0 0  
Commitment fee amount 1,500,000 1,500,000  
Senior bank debt | Term Loan      
Debt Instrument [Line Items]      
Available borrowing 350,000,000    
Additional borrowing amount 75,000,000    
Debt $ 350,000,000 $ 350,000,000  
Weighted average interest rate on amount outstanding 0.95% 1.02%  
Senior bank debt | Term Loan | LIBOR      
Debt Instrument [Line Items]      
Basis spread over variable debt rate 0.85%    
Senior notes      
Debt Instrument [Line Items]      
Debt $ 1,093,500,000 $ 1,091,900,000  
Senior notes | 2024 Senior Notes      
Debt Instrument [Line Items]      
Redemption price percentage 100.00%    
Effective interest rate 4.43%    
Stated interest rate 4.25%    
Senior notes | 2024 Senior Notes | Treasury Rate      
Debt Instrument [Line Items]      
Applicable basis spread over redemption price percentage 0.25%    
Senior notes | 2025 Senior Notes      
Debt Instrument [Line Items]      
Redemption price percentage 100.00%    
Effective interest rate 3.67%    
Stated interest rate 3.50%    
Senior notes | 2025 Senior Notes | Treasury Rate      
Debt Instrument [Line Items]      
Applicable basis spread over redemption price percentage 0.25%    
Senior notes | 2030 Senior Notes      
Debt Instrument [Line Items]      
Redemption price percentage 100.00%    
Effective interest rate 3.39%    
Stated interest rate 3.30%    
Senior notes | 2030 Senior Notes | Treasury Rate      
Debt Instrument [Line Items]      
Applicable basis spread over redemption price percentage 0.40%    
Junior subordinated notes      
Debt Instrument [Line Items]      
Debt $ 751,400,000 556,400,000  
Junior subordinated notes | 2059 Junior Subordinated Notes      
Debt Instrument [Line Items]      
Effective interest rate 5.90%    
Stated interest rate 5.875%    
Junior subordinated notes | 2059 Junior Subordinated Notes | On or after September 30, 2026      
Debt Instrument [Line Items]      
Redemption price percentage 100.00%    
Junior subordinated notes | 2059 Junior Subordinated Notes | If changes in tax laws and interpretations occur      
Debt Instrument [Line Items]      
Redemption price percentage 100.00%    
Junior subordinated notes | 2059 Junior Subordinated Notes | If a rating agency makes certain changes relating to the equity credit criteria for securities      
Debt Instrument [Line Items]      
Redemption price percentage 102.00%    
Junior subordinated notes | 2060 Junior Subordinated Notes      
Debt Instrument [Line Items]      
Effective interest rate 4.78%    
Stated interest rate 4.75%    
Junior subordinated notes | 2060 Junior Subordinated Notes | On or after September 30, 2026      
Debt Instrument [Line Items]      
Redemption price percentage 100.00%    
Junior subordinated notes | 2060 Junior Subordinated Notes | If changes in tax laws and interpretations occur      
Debt Instrument [Line Items]      
Redemption price percentage 100.00%    
Junior subordinated notes | 2060 Junior Subordinated Notes | If a rating agency makes certain changes relating to the equity credit criteria for securities      
Debt Instrument [Line Items]      
Redemption price percentage 102.00%    
Junior subordinated notes | 2061 Junior Subordinated Notes      
Debt Instrument [Line Items]      
Effective interest rate 4.21%    
Stated interest rate 4.20%    
Junior subordinated notes | 2061 Junior Subordinated Notes | On or after September 30, 2026      
Debt Instrument [Line Items]      
Redemption price percentage 100.00%    
Junior subordinated notes | 2061 Junior Subordinated Notes | If changes in tax laws and interpretations occur      
Debt Instrument [Line Items]      
Redemption price percentage 100.00%    
Junior subordinated notes | 2061 Junior Subordinated Notes | If a rating agency makes certain changes relating to the equity credit criteria for securities      
Debt Instrument [Line Items]      
Redemption price percentage 102.00%    
Junior convertible securities      
Debt Instrument [Line Items]      
Debt $ 295,600,000 $ 314,000,000.0  
Junior convertible securities | Junior Convertible Trust Preferred Securities      
Debt Instrument [Line Items]      
Stated interest rate 5.15%    
Deferred tax liability $ 9,000,000    
Repayments of long-term debt 33,000,000    
Repurchase of junior convertible securities, debt impact 29,900,000    
Deferred tax liabilities, net, decrease resulting from repurchase of junior convertible securities 7,000,000    
Junior convertible securities | Junior Convertible Trust Preferred Securities | Additional Paid-In Capital      
Debt Instrument [Line Items]      
Repurchase of junior convertible securities, equity impact $ 7,100,000