XML 95 R76.htm IDEA: XBRL DOCUMENT v3.25.1
Borrowings - Additional Information (Details)
€ in Millions
 1 Months Ended 3 Months Ended
Aug. 31, 2023
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Mar. 31, 2025
EUR (€)
Dec. 31, 2024
USD ($)
Jun. 30, 2021
USD ($)
May 31, 2021
USD ($)
Mar. 31, 2014
USD ($)
Mar. 31, 2013
USD ($)
Debt Instrument [Line Items]                  
Interest   $ 27,800,000 $ 30,800,000            
Borrowings   2,184,100,000     $ 2,164,400,000        
Fair value of collateralized loan obligation assets   $ 8,800,000,000     7,900,000,000        
Senior Notes                  
Debt Instrument [Line Items]                  
Debt redemption price percentage (percent)   100.00%              
CLO Borrowings                  
Debt Instrument [Line Items]                  
Interest   $ 3,800,000 6,800,000            
Borrowings   309,100,000     289,400,000        
CLO Term Loan February 2017 Maturing September 2029                  
Debt Instrument [Line Items]                  
Borrowings   21,700,000   € 20.0          
Master Credit Agreements - Term Loans                  
Debt Instrument [Line Items]                  
Outstanding borrowings   21,500,000              
CLO Financing Facility                  
Debt Instrument [Line Items]                  
Outstanding borrowings   197,300,000   182.5          
CBAM CLO Financing Facility                  
Debt Instrument [Line Items]                  
Borrowing capacity | €       100.0          
Outstanding borrowings   68,600,000   € 63.4          
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              
Fair Value   $ 341,900,000     338,100,000        
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           $ 200,000,000.0 $ 400,000,000.0
Fair Value   $ 587,900,000     589,500,000        
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%          
Fair Value   $ 404,300,000     401,200,000        
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   $ 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   $ 348,000,000     356,400,000        
Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Borrowing capacity   $ 1,000,000,000              
Interest rate under credit facility   5.42%   5.42%          
Borrowings under credit facilities   $ 0 0            
Outstanding borrowings   0              
Fair Value   $ 121,400,000     $ 55,100,000        
Revolving Credit Facility | Base rate                  
Debt Instrument [Line Items]                  
Margin spread on interest rate (percent)   0.50%              
Revolving Credit Facility | SOFR                  
Debt Instrument [Line Items]                  
Margin spread on interest rate (percent)   0.10%              
Revolving Credit Facility | SOFR | Maximum                  
Debt Instrument [Line Items]                  
Margin spread on interest rate (percent)   1.50%              
Revolving Credit Facility | Global Credit Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Borrowings under credit facilities   $ 0 $ 0            
Outstanding borrowings   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 | SOFR                  
Debt Instrument [Line Items]                  
Margin spread on interest rate (percent) 2.00%                
Revolving Credit Facility | Global Credit Revolving Credit Facility Maturing In 2027                  
Debt Instrument [Line Items]                  
Borrowing capacity   300,000,000              
Revolving Credit Facility | Global Credit Revolving Credit Facility Maturing In 2025                  
Debt Instrument [Line Items]                  
Borrowing capacity   $ 200,000,000