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Credit Facility (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Line of Credit Facility [Line Items]          
Long-term Line of Credit, Noncurrent, Net of Debt Issuance Costs $ 1,262.1   $ 1,262.1   $ 610.6
Line of Credit Facility, Maximum Borrowing Capacity 53.8   53.8    
Letters of Credit Outstanding, Amount 0.4   0.4   0.4
Uncommitted Facility, Maximum Borrowing Capacity 400.0   400.0    
Line of Credit [Member]          
Line of Credit Facility [Line Items]          
Unamortized Debt Issuance Expense 12.9   12.9   14.4
Long-term Line of Credit, Noncurrent, Net of Debt Issuance Costs 1,262.1   1,262.1   $ 610.6
Line of Credit Facility, Maximum Borrowing Capacity 3,300.0   3,300.0    
Line of Credit Facility, Average Outstanding Amount $ 1,705.8 $ 2,315.8 $ 1,381.3 $ 2,019.5  
Pricing on the Facility based on market rates     ("SOFR") plus 0.875% to 1.35%    
Description of Variable Rate Basis     SOFR    
Basis spread on variable rate (in hundredths)     0.98%    
Line of Credit Facility, Interest Rate During Period 6.20% 5.90% 6.20% 5.70%