v3.25.2
Fair Value of Financial Instruments (Schedule of Comparison of the Carrying Value and Estimated Fair Value of Financial Instruments) (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Assets    
Cash and cash equivalents [1] $ 70.0 $ 343.7
Restricted cash and cash equivalents [1] 493.8 501.3
Debt Securities, Available-for-sale, Restricted 107.1 106.4
Loans receivable, net [1] 9,098.3 8,922.7
Liabilities    
Revolving secured lines of credit [1] 1.5 0.1
Secured financing [1] 5,448.5 5,431.9
Senior notes [1] 1,141.0 1,035.3
Carrying Amount [Member]    
Assets    
Cash and cash equivalents 70.0 343.7
Restricted cash and cash equivalents 493.8 501.3
Debt Securities, Available-for-sale, Restricted 107.1 106.4
Loans receivable, net 8,001.9 7,850.3
Liabilities    
Revolving secured lines of credit 1.5 0.1
Secured financing 5,383.3 5,361.5
Senior notes 1,086.4 991.3
Estimated Fair Value [Member]    
Assets    
Cash and cash equivalents 70.0 343.7
Restricted cash and cash equivalents 493.8 501.3
Debt Securities, Available-for-sale, Restricted 107.1 106.4
Loans receivable, net 9,098.3 8,922.7
Liabilities    
Revolving secured lines of credit 1.5 0.1
Secured financing 5,448.5 5,431.9
Senior notes $ 1,141.0 $ 1,035.3
[1] Measured at amortized cost with fair value disclosed.