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UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 18.7	$ 21.4	$ 62.3	$ 62.0
Other comprehensive income, net of income taxes:
Change in unfunded pension plan obligation liability	0.0	0.0	0.1	1.4
Other	0.0	0.0	0.1	0.0
Comprehensive income	$ 18.8	$ 21.4	$ 62.5	$ 63.4

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