Goodwill and Intangibles - Intangibles (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018	Dec. 31, 2018
Intangible assets subject to amortization
Gross Carrying Amount	$ 335.3		$ 335.3		$ 334.0
Accumulated Amortization	(216.6)		(216.6)		(205.0)
Net Carrying Amount	118.7		118.7		129.0
Indefinite-lived intangible assets
Indefinite-lived intangible assets	35.5		35.5		36.2
Intangible assets
Gross Carrying Amount	370.8		370.8		370.2
Net Carrying Amount	154.2		154.2		165.2
Aggregate amortization expense for amortized intangible assets	3.8	$ 4.5	11.6	$ 15.2
Patents
Intangible assets subject to amortization
Gross Carrying Amount	16.1		16.1		16.1
Accumulated Amortization	(15.8)		(15.8)		(15.8)
Net Carrying Amount	0.3		0.3		0.3
Customer relationships
Intangible assets subject to amortization
Gross Carrying Amount	232.3		232.3		232.9
Accumulated Amortization	(154.0)		(154.0)		(146.9)
Net Carrying Amount	78.3		78.3		86.0
Technology
Intangible assets subject to amortization
Gross Carrying Amount	56.8		56.8		54.6
Accumulated Amortization	(30.5)		(30.5)		(27.3)
Net Carrying Amount	26.3		26.3		27.3
Intangible assets
Finite-lived Intangible Assets Acquired	2.2
Trade name
Intangible assets subject to amortization
Gross Carrying Amount	25.8		25.8		26.1
Accumulated Amortization	(12.7)		(12.7)		(11.5)
Net Carrying Amount	13.1		13.1		14.6
Other
Intangible assets subject to amortization
Gross Carrying Amount	4.3		4.3		4.3
Accumulated Amortization	(3.6)		(3.6)		(3.5)
Net Carrying Amount	$ 0.7		$ 0.7		$ 0.8