CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 189.5	$ 33.9	$ (63.7)
Other comprehensive income (loss), net of income taxes:
Change in unfunded pension plan obligation liability	(1.3)	2.3	1.2
Other	0.0	0.0	0.1
Comprehensive income (loss)	$ 188.2	$ 36.3	$ (62.4)