Goodwill and Other Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Millions	Dec. 28, 2025	Dec. 29, 2024
Acquired finite-lived intangible assets:
Gross Value	$ 198.0	$ 188.3
Accumulated Amortization	(151.0)	(141.4)
Total	47.0	46.9
Total intangible assets, gross value	204.9	195.2
Total intangible assets, net value	53.9	53.8
Trade names
Acquired finite-lived intangible assets:
Indefinite-lived trade names	6.9	6.9
Customer relationships
Acquired finite-lived intangible assets:
Gross Value	86.7	80.9
Accumulated Amortization	(68.2)	(65.3)
Total	18.5	15.6
Contracts and backlog
Acquired finite-lived intangible assets:
Gross Value	54.5	53.1
Accumulated Amortization	(47.7)	(43.2)
Total	6.8	9.9
Non-compete Agreements
Acquired finite-lived intangible assets:
Gross Value	0.5	0.0
Accumulated Amortization	(0.1)	0.0
Total	0.4	0.0
Developed technology and technical know-how
Acquired finite-lived intangible assets:
Gross Value	35.1	33.7
Accumulated Amortization	(30.8)	(29.4)
Total	4.3	4.3
Trade names
Acquired finite-lived intangible assets:
Gross Value	4.4	3.8
Accumulated Amortization	(3.5)	(3.1)
Total	0.9	0.7
In-process research and development
Acquired finite-lived intangible assets:
Gross Value	16.8	16.8
Accumulated Amortization	(0.7)	(0.4)
Total	$ 16.1	$ 16.4