XML 89 R74.htm IDEA: XBRL DOCUMENT v3.23.1
Borrowings - Additional Information (Details)
€ in Millions
3 Months Ended
Dec. 17, 2018
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Mar. 31, 2023
EUR (€)
Dec. 31, 2022
USD ($)
Jun. 30, 2021
USD ($)
May 31, 2021
USD ($)
Feb. 05, 2019
EUR (€)
Feb. 28, 2017
EUR (€)
Mar. 31, 2014
USD ($)
Mar. 31, 2013
USD ($)
Debt Instrument [Line Items]                      
Interest expense   $ 29,700,000 $ 27,800,000                
Borrowings   2,300,400,000     $ 2,296,700,000            
Interest expense   17,200,000 17,200,000                
Fair value of collateralized loan obligation assets   $ 6,300,000,000     6,200,000,000            
Senior Notes                      
Debt Instrument [Line Items]                      
Debt redemption price percentage (percent)   100.00%                  
CLO Borrowings                      
Debt Instrument [Line Items]                      
Interest expense   $ 5,200,000 1,700,000                
Borrowings   425,400,000     421,700,000            
CLO Term Loan Maturing November 2031                      
Debt Instrument [Line Items]                      
Borrowings | €                 € 36.1    
Outstanding borrowings   $ 39,300,000                  
CLO Term Loan Maturing November 2031 | Euribor                      
Debt Instrument [Line Items]                      
Interest rate under credit facility   3.79%   3.79%              
Master Credit Agreements - Term Loans                      
Debt Instrument [Line Items]                      
Outstanding borrowings   $ 97,800,000                  
CLO Financing Facility                      
Debt Instrument [Line Items]                      
Borrowing capacity | €               € 100.0      
Outstanding borrowings   220,900,000   € 203.2              
CBAM CLO Financing Facility                      
Debt Instrument [Line Items]                      
Borrowing capacity | €       100.0              
Outstanding borrowings   67,300,000   € 61.9              
5.650% Senior Notes Due 9/15/2048                      
Debt Instrument [Line Items]                      
Borrowings   $ 350,000,000.0     350,000,000.0            
Interest rate (percent)   5.65%   5.65%              
5.650% Senior Notes Due 9/15/2048 | Senior Notes                      
Debt Instrument [Line Items]                      
Borrowings   $ 350,000,000.0                  
Interest expense   5,000,000.0 5,000,000.0                
Fair value of debt   $ 330,300,000     322,200,000            
5.650% Senior Notes Due 9/15/2048 | Treasury rate | Senior Notes                      
Debt Instrument [Line Items]                      
Discount rate, spread on variable rate   0.40%                  
5.625% Senior Notes Due 3/30/2043                      
Debt Instrument [Line Items]                      
Borrowings   $ 600,000,000.0     600,000,000.0            
Interest rate (percent)   5.625%   5.625%              
5.625% Senior Notes Due 3/30/2043 | Senior Notes                      
Debt Instrument [Line Items]                      
Borrowings   $ 600,000,000.0               $ 200,000,000 $ 400,000,000
Interest expense   8,400,000 8,400,000                
Fair value of debt   $ 560,900,000     545,800,000            
5.625% Senior Notes Due 3/30/2043 | Treasury rate | Senior Notes                      
Debt Instrument [Line Items]                      
Discount rate, spread on variable rate   0.40%                  
3.500% Senior Notes Due 9/19/2029                      
Debt Instrument [Line Items]                      
Borrowings   $ 425,000,000.0     425,000,000.0            
Interest rate (percent)   3.50%   3.50%              
3.500% Senior Notes Due 9/19/2029 | Senior Notes                      
Debt Instrument [Line Items]                      
Borrowings   $ 425,000,000.0                  
Interest rate (percent)   3.50%   3.50%              
Interest expense   $ 3,800,000 3,800,000                
Fair value of debt   $ 390,600,000     364,100,000            
3.500% Senior Notes Due 9/19/2029 | Treasury rate | Senior Notes                      
Debt Instrument [Line Items]                      
Discount rate, spread on variable rate   0.30%                  
4.625% Subordinated Notes Due 5/15/2061                      
Debt Instrument [Line Items]                      
Interest expense   $ 5,900,000 5,900,000                
Borrowings   $ 500,000,000.0     500,000,000.0 $ 65,000,000 $ 435,000,000        
Debt redemption price percentage (percent)   102.00%                  
Interest rate (percent)   4.625%   4.625%     4.625%        
Period from Tax Redemption Event that debt may be redeemed   120 days                  
Period from rating agency event that debt may be redeemed   90 days                  
Fair value of debt   $ 368,000,000     $ 323,800,000            
Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Borrowing capacity   $ 1,000,000,000 $ 775,000,000                
Interest rate under credit facility   5.90%   5.90%              
Borrowings under credit facilities   $ 0                  
Repayments under credit facility   0                  
Outstanding borrowings   $ 0                  
Revolving Credit Facility | Base rate                      
Debt Instrument [Line Items]                      
Margin spread on interest rate (percent)   0.50% 0.50%                
Revolving Credit Facility | SOFR                      
Debt Instrument [Line Items]                      
Margin spread on interest rate (percent)   0.10%                  
Revolving Credit Facility | LIBOR                      
Debt Instrument [Line Items]                      
Margin spread on interest rate (percent)   1.50% 1.50%                
Revolving Credit Facility | Global Credit Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Borrowing capacity   $ 250,000,000                  
Outstanding borrowings   0                  
Borrowings under credit facility   $ 0                  
Revolving Credit Facility | Global Credit Revolving Credit Facility | Base rate                      
Debt Instrument [Line Items]                      
Margin spread on interest rate (percent) 1.00%                    
Revolving Credit Facility | Global Credit Revolving Credit Facility | Eurocurrency                      
Debt Instrument [Line Items]                      
Margin spread on interest rate (percent) 2.00%