Goodwill and Intangibles - Intangibles (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2017	Apr. 03, 2016	Dec. 31, 2016
Intangible assets subject to amortization
Gross Carrying Amount	$ 333.3		$ 332.6
Accumulated Amortization	(170.9)		(165.4)
Net Carrying Amount	162.4		167.2
Indefinite-lived intangible assets
Indefinite-lived intangible assets	35.5		35.3
Intangible assets
Gross Carrying Amount	368.8		367.9
Net Carrying Amount	197.9		202.5
Aggregate amortization expense for amortized intangible assets	5.5	$ 5.1
Patents
Intangible assets subject to amortization
Gross Carrying Amount	16.1		16.1
Accumulated Amortization	(15.0)		(14.9)
Net Carrying Amount	1.1		1.2
Customer relationships
Intangible assets subject to amortization
Gross Carrying Amount	232.0		231.5
Accumulated Amortization	(121.3)		(117.3)
Net Carrying Amount	110.7		114.2
Technology
Intangible assets subject to amortization
Gross Carrying Amount	53.1		53.1
Accumulated Amortization	(20.1)		(19.2)
Net Carrying Amount	33.0		33.9
Trade name
Intangible assets subject to amortization
Gross Carrying Amount	25.2		25.1
Accumulated Amortization	(8.5)		(8.1)
Net Carrying Amount	16.7		17.0
Other
Intangible assets subject to amortization
Gross Carrying Amount	6.9		6.8
Accumulated Amortization	(6.0)		(5.9)
Net Carrying Amount	$ 0.9		$ 0.9