v3.25.2
Consolidated Statements of Comprehensive Income - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Statement of Comprehensive Income [Abstract]        
Net income $ 71.7 $ 60.0 $ 121.9 $ 118.4
Other comprehensive income, before tax:        
Change in net unrealized gains (losses) during the period 44.7 2.5 115.4 (23.9)
OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), before Tax (0.1) (0.1) (0.1) (0.3)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax 0.9 (5.1) 1.9 (22.5)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax 0.4 4.6 1.4 8.1
Deferred tax (expense) benefit related to other comprehensive (loss) income (11.3) (0.5) (29.6) 9.6
Other comprehensive income (loss), net of tax 34.6 1.4 89.0 (29.0)
Other comprehensive income (loss), before tax 45.9 1.9 118.6 (38.6)
Comprehensive income, net of tax $ 106.3 $ 61.4 $ 210.9 $ 89.4