Goodwill and Other Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Acquired finite-lived intangible assets:
Gross Value	$ 139.7	$ 108.9
Accumulated Amortization	(107.1)	(99.7)
Total	32.6	9.2
Total intangible assets, Gross Value	146.6	115.8
Total intangible assets, Net Value	39.5	16.1
Aggregate amortization expense for finite-live intangible assets	7.4	5.9	$ 10.4
Trade names
Acquired finite-lived intangible assets:
Indefinite-lived trade names	6.9	6.9
Customer relationships
Acquired finite-lived intangible assets:
Gross Value	72.3	52.6
Accumulated Amortization	(53.3)	(50.6)
Total	19.0	2.0
Contracts and backlog
Acquired finite-lived intangible assets:
Gross Value	32.0	29.9
Accumulated Amortization	(28.4)	(26.4)
Total	3.6	3.5
Developed technology and technical know-how
Acquired finite-lived intangible assets:
Gross Value	25.0	25.0
Accumulated Amortization	(23.8)	(21.3)
Total	1.2	3.7
Trade names
Acquired finite-lived intangible assets:
Gross Value	1.9	1.4
Accumulated Amortization	(1.6)	(1.4)
Total	0.3	0.0
Favorable Operating Lease [Member]
Acquired finite-lived intangible assets:
Gross Value	8.5	0.0
Accumulated Amortization	0.0	0.0
Total	$ 8.5	$ 0.0