v3.25.1
Income Taxes - Schedule of Reconciliation of Difference Between Provision for Income Taxes and Expected Tax Provision at Weighted Average Tax Rate (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Income Tax Disclosure [Abstract]    
Income tax provision (benefit) at expected rate $ 8.1 $ 5.7
Tax effect of:    
Nontaxable investment income (0.1) 0.0
Withholding taxes 0.1 0.0
Change in valuation allowance (1.3) 0.0
Prior period adjustment 1.2 (4.4)
Other 0.3 0.3
Income tax provision (benefit) $ 8.3 $ 1.6