v3.25.0.1
Long-Term Debt - Credit Agreement (Details)
$ in Millions
3 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Sep. 30, 2024
USD ($)
Mar. 18, 2020
USD ($)
Debt Instrument        
Payments of debt issuance costs and deferred financing fees $ 5.2 $ 0.0    
Debt Covenant, Leverage Ratio 4.25      
Revolving Credit Facility        
Debt Instrument        
Line of Credit Facility, Current Borrowing Capacity $ 1,000.0     $ 750.0
Proceeds from Lines of Credit   345.0    
Repayments of Lines of Credit   $ 45.0    
Letters of Credit Outstanding, Amount 22.3   $ 20.0  
Line of Credit Facility, Remaining Borrowing Capacity 977.7   $ 980.0  
Debt Covenant, Maximum Undischarged Judgments $ 125.0      
Revolving Credit Facility | High-End Ratio        
Debt Instrument        
Debt Covenant, Leverage Ratio 3.00      
Revolving Credit Facility | Low-End Ratio        
Debt Instrument        
Debt Covenant, Leverage Ratio 1.50      
Revolving Credit Facility | Maximum        
Debt Instrument        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.375%      
Revolving Credit Facility | Minimum        
Debt Instrument        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%      
Revolving Credit Facility | NYFRB        
Debt Instrument        
Debt Instrument, Basis Spread on Variable Rate 0.50%      
Revolving Credit Facility | Base Rate | Maximum        
Debt Instrument        
Debt Instrument, Basis Spread on Variable Rate 1.00%      
Revolving Credit Facility | Base Rate | Median        
Debt Instrument        
Debt Instrument, Basis Spread on Variable Rate 0.75%      
Revolving Credit Facility | Base Rate | Minimum        
Debt Instrument        
Debt Instrument, Basis Spread on Variable Rate 0.50%      
Revolving Credit Facility | One-Month adjusted term SOFR        
Debt Instrument        
Debt Instrument, Basis Spread on Variable Rate 1.00%      
Revolving Credit Facility | Adjusted term SOFR | Maximum        
Debt Instrument        
Debt Instrument, Basis Spread on Variable Rate 2.00%      
Revolving Credit Facility | Adjusted term SOFR | Median        
Debt Instrument        
Debt Instrument, Basis Spread on Variable Rate 1.75%      
Revolving Credit Facility | Adjusted term SOFR | Minimum        
Debt Instrument        
Debt Instrument, Basis Spread on Variable Rate 1.50%      
Line of Credit        
Debt Instrument        
Line of Credit Facility, Current Borrowing Capacity $ 75.0