Goodwill - Schedule of Changes in the Carrying Amount of Goodwill and Accumulated Impairment Losses by Reporting Segment (Details) - USD ($) $ in Millions				12 Months Ended
	Oct. 01, 2024	Oct. 01, 2023	Oct. 01, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Abstract]
Goodwill				$ 79.0	$ 80.3	$ 79.2
Accumulated impairment losses				(54.0)	(34.0)	(34.0)
Net				25.0	46.3	45.2
Foreign currency translation				(1.1)	1.1
Impairment	$ 0.0	$ 0.0	$ 0.0	20.2	0.0	0.0
Goodwill, period increase (decrease)				(21.3)	1.1
Operating Segments
Goodwill [Abstract]
Impairment				20.2	0.0	0.0
Infrastructure Solutions | Operating Segments
Goodwill [Abstract]
Goodwill				46.8	48.0	47.6
Accumulated impairment losses				(21.8)	(21.8)	(21.8)
Net				25.0	26.2	25.8
Foreign currency translation				(1.2)	0.4
Impairment				0.0
Goodwill, period increase (decrease)				(1.2)	0.4
Materials Solutions | Operating Segments
Goodwill [Abstract]
Goodwill				32.2	32.3	31.6
Accumulated impairment losses				(32.2)	(12.2)	(12.2)
Net				0.0	20.1	$ 19.4
Foreign currency translation				0.1	0.7
Impairment				20.2
Goodwill, period increase (decrease)				$ (20.1)	$ 0.7