Goodwill - Schedule of Goodwill by Reporting Segment (Details) - USD ($) $ in Millions				3 Months Ended	12 Months Ended
	Oct. 01, 2025	Oct. 01, 2024	Oct. 01, 2023	Sep. 30, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Abstract]
Goodwill					$ 166.8	$ 79.0	$ 80.3
Accumulated impairment					(55.0)	(54.0)	(34.0)
Net					111.8	25.0	46.3
Foreign currency translation					0.4	(1.1)
Acquisitions				$ 86.4	86.4
Impairment	$ 0.0	$ 0.0	$ 0.0		0.0	(20.2)	0.0
Goodwill, period increase (decrease)					86.8	(21.3)
Operating Segments
Goodwill [Abstract]
Impairment					0.0	(20.2)	0.0
Infrastructure Solutions
Goodwill [Abstract]
Acquisitions					0.0
Impairment						0.0
Infrastructure Solutions | Operating Segments
Goodwill [Abstract]
Goodwill					47.5	46.8	48.0
Accumulated impairment					(21.8)	(21.8)	(21.8)
Net					25.7	25.0	26.2
Foreign currency translation					0.7	(1.2)
Goodwill, period increase (decrease)					0.7	(1.2)
Materials Solutions
Goodwill [Abstract]
Acquisitions					86.4
Impairment						(20.2)
Materials Solutions | Operating Segments
Goodwill [Abstract]
Goodwill					119.3	32.2	32.3
Accumulated impairment					(33.2)	(32.2)	(12.2)
Net					86.1	0.0	$ 20.1
Foreign currency translation					(0.3)	0.1
Goodwill, period increase (decrease)					$ 86.1	$ (20.1)