Goodwill and Other Intangible Assets (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	$ 166.5		$ 166.5		$ 165.2
Accumulated Amortization, intangible assets subject to amortization	(93.5)		(93.5)		(87.7)
Net Carrying Amount, intangible assets subject to amortization	73.0		73.0		77.5
Gross Carrying Amount, total intangible assets	167.1		167.1		171.5
Net Carrying Amount, total intangible assets	73.6		73.6		83.8
Amortization expense related to intangible assets subject to amortization	5.2	$ 4.8	10.4	$ 10.0
In-process research and development
Intangible assets:
Gross Carrying Amount, intangible assets not subject to amortization	0.6		0.6		6.3
Net Carrying Amount, intangible assets not subject to amortization	0.6		0.6		6.3
Existing technology and related patents
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	152.9		152.9		149.8
Accumulated Amortization, intangible assets subject to amortization	(87.9)		(87.9)		(81.7)
Net Carrying Amount, intangible assets subject to amortization	65.0		65.0		68.1
Customer relationships
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	11.6		11.6		13.4
Accumulated Amortization, intangible assets subject to amortization	(5.0)		(5.0)		(5.6)
Net Carrying Amount, intangible assets subject to amortization	6.6		6.6		7.8
Non compete contracts
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	1.8		1.8		1.8
Accumulated Amortization, intangible assets subject to amortization	(0.4)		(0.4)		(0.2)
Net Carrying Amount, intangible assets subject to amortization	1.4		1.4		1.6
Trade names
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	0.2		0.2		0.2
Accumulated Amortization, intangible assets subject to amortization	$ (0.2)		$ (0.2)		$ (0.2)