Goodwill and Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Dec. 28, 2014
Acquired finite-lived intangible assets:
Acquired finite-lived intangible assets: Gross Value	$ 186.4		$ 186.4
Intangible assets: Accumulated Amortization	(153.9)		(143.8)
Acquired finite-lived intangible assets: Net Value	32.5		42.6
Acquired indefinite-lived intangible assets:
Intangible assets: Gross Value	193.3		193.3
Intangible assets: Net Value	39.4		49.5
Consolidated amortization expense related to intangible assets subject to amortization	10.1	$ 14.4
Trade names
Acquired indefinite-lived intangible assets:
Acquired indefinite-lived intangible assets: Gross Value	6.9		6.9
Customer relationships
Acquired finite-lived intangible assets:
Acquired finite-lived intangible assets: Gross Value	84.1		84.1
Intangible assets: Accumulated Amortization	(65.6)		(58.2)
Acquired finite-lived intangible assets: Net Value	18.5		25.9
Contracts and backlog
Acquired finite-lived intangible assets:
Acquired finite-lived intangible assets: Gross Value	72.1		72.1
Intangible assets: Accumulated Amortization	(70.0)		(69.4)
Acquired finite-lived intangible assets: Net Value	2.1		2.7
Developed technology and technical know-how
Acquired finite-lived intangible assets:
Acquired finite-lived intangible assets: Gross Value	23.1		23.1
Intangible assets: Accumulated Amortization	(12.7)		(10.9)
Acquired finite-lived intangible assets: Net Value	10.4		12.2
Trade names
Acquired finite-lived intangible assets:
Acquired finite-lived intangible assets: Gross Value	5.3		5.3
Intangible assets: Accumulated Amortization	(4.8)		(4.6)
Acquired finite-lived intangible assets: Net Value	0.5		0.7
Favorable operating lease
Acquired finite-lived intangible assets:
Acquired finite-lived intangible assets: Gross Value	1.8		1.8
Intangible assets: Accumulated Amortization	(0.8)		(0.7)
Acquired finite-lived intangible assets: Net Value	$ 1.0		$ 1.1