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Subsequent Events (Details) - Subsequent Event - Subordinated Debt
$ in Millions
May 01, 2026
USD ($)
5.95% Notes Due 2036  
Subsequent Event [Line Items]  
Debt instrument, face amount $ 300.0
Debt instrument, interest rate (as a percent) 5.95%
Debt instrument, effective rate (as a percent) 6.27%
Basis spread 2.17%
Proceeds from issuance of debt $ 296.0
3.25% Notes due 2030  
Subsequent Event [Line Items]  
Debt instrument, face amount $ 195.0