Goodwill and Other Intangible Assets (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	$ 163.6	$ 132.6
Accumulated Amortization, intangible assets subject to amortization	(35.2)	(17.8)
Net Carrying Amount, intangible assets subject to amortization	128.4	114.8
Gross Carrying Amount, total intangible assets	171.6	153.9
Net Carrying Amount, total intangible assets	136.4	136.1
Amortization expense related to intangible assets subject to amortization	18.1	5.8	1.8
Estimated future amortization expense related to amortizable intangible asset:
2012	19.7
2013	20.7
2014	20.1
2015	19.5
2016	18.6
Thereafter	37.8
Total	136.4
Existing technology and related patents
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	141.4	112.0
Accumulated Amortization, intangible assets subject to amortization	(29.9)	(15.0)
Net Carrying Amount, intangible assets subject to amortization	111.5	97.0
Customer and distributor relationships
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	22.0	20.2
Accumulated Amortization, intangible assets subject to amortization	(5.1)	(2.5)
Net Carrying Amount, intangible assets subject to amortization	16.9	17.7
Trade names
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	0.2	0.4
Accumulated Amortization, intangible assets subject to amortization	(0.2)	(0.3)
Net Carrying Amount, intangible assets subject to amortization		0.1
In-process research and development
Intangible assets:
Gross Carrying Amount, intangible assets not subject to amortization	8.0	21.3
Net Carrying Amount, total intangible assets	$ 8.0	$ 21.3