v3.26.1
Condensed Consolidated Statements of Comprehensive Income - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Statement of Comprehensive Income [Abstract]        
Net income (loss) $ (21.5) $ 2.7 $ (34.3) $ (3.6)
Defined benefit pension and other postretirement employee benefits:        
Amortization of actuarial loss included in net periodic cost, net of tax of $0.2, $—, $0.4 and $— 0.6 0.0 1.2 0.1
Other comprehensive income (loss), net of tax 0.6 0.0 1.2 0.1
Comprehensive income (loss) $ (20.9) $ 2.7 $ (33.1) $ (3.5)