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Debt (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2025
Apr. 29, 2025
Mar. 31, 2025
Dec. 31, 2024
Credit facility        
Carrying value of debt $ 275.0     $ 205.0
Line of Credit        
Credit facility        
Carrying value of debt $ 275.0      
Debt instrument term 5 years      
Initial borrowing capacity   $ 375.0 $ 325.0  
Capacity for aggregate elected commitments   $ 375.0 $ 325.0  
Letters of credit outstanding $ (0.3)      
Line of credit facility, remaining borrowing capacity $ 99.7      
Unused capacity commitment fee (percent) 0.50%      
Leverage ratio 300.00%      
Current ratio 100.00%      
Line of Credit | Credit Spread Adjustment Scenario 1        
Credit facility        
Interest rate increase (percent) 0.10%      
Line of Credit | Credit Spread Adjustment Scenario 2        
Credit facility        
Interest rate increase (percent) 0.15%      
Line of Credit | Credit Spread Adjustment Scenario 3        
Credit facility        
Interest rate increase (percent) 0.20%      
Line of Credit | Secured Overnight Financing Rate (SOFR) | Credit Spread Adjustment Scenario 1        
Credit facility        
Interest rate increase (percent) 1.00%      
Variable interest rate adjustment term 1 month      
Line of Credit | Secured Overnight Financing Rate (SOFR) | Credit Spread Adjustment Scenario 2        
Credit facility        
Variable interest rate adjustment term 3 months      
Line of Credit | Secured Overnight Financing Rate (SOFR) | Credit Spread Adjustment Scenario 3        
Credit facility        
Variable interest rate adjustment term 6 months      
Line of Credit | Federal funds rate        
Credit facility        
Interest rate increase (percent) 0.50%      
Line of Credit | Minimum | Secured Overnight Financing Rate (SOFR)        
Credit facility        
Variable interest rate (percent) 3.00%      
Line of Credit | Minimum | Secured Overnight Financing Rate (SOFR) | Credit Spread Adjustment Scenario 1        
Credit facility        
Additional to margin added to interest rate 2.00%      
Line of Credit | Maximum | Secured Overnight Financing Rate (SOFR)        
Credit facility        
Variable interest rate (percent) 4.00%      
Line of Credit | Maximum | Secured Overnight Financing Rate (SOFR) | Credit Spread Adjustment Scenario 1        
Credit facility        
Additional to margin added to interest rate 3.00%