Goodwill and Other Intangible Assets (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	$ 176.1	$ 167.0
Accumulated Amortization, intangible assets subject to amortization	(76.2)	(55.7)
Net Carrying Amount, intangible assets subject to amortization	99.9	111.3
Gross Carrying Amount, total intangible assets	181.8	172.7
Net Carrying Amount, total intangible assets	105.6	117.0
Impairment charge on definite-lived intangible assets	0	16.4	0
Amortization expense related to intangible assets subject to amortization	20.8	22.0	18.1
Estimated future amortization expense related to amortizable intangible asset:
2014	21.0
2015	21.0
2016	20.5
2017	20.1
2018	12.9
Thereafter	4.4
Net Carrying Amount, intangible assets subject to amortization	99.9	111.3
CAM division
Intangible assets:
Gross Carrying Amount, intangible assets not subject to amortization		0
In-process research and development
Intangible assets:
Gross Carrying Amount, intangible assets not subject to amortization	5.7	5.7
Net Carrying Amount, total intangible assets	5.7	5.7
Existing technology and related patents
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	157.9	151.5
Accumulated Amortization, intangible assets subject to amortization	(68.2)	(47.6)
Net Carrying Amount, intangible assets subject to amortization	89.7	103.9
Estimated future amortization expense related to amortizable intangible asset:
Net Carrying Amount, intangible assets subject to amortization	89.7	103.9
Customer relationships
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	18.0	15.3
Accumulated Amortization, intangible assets subject to amortization	(7.8)	(7.9)
Net Carrying Amount, intangible assets subject to amortization	10.2	7.4
Estimated future amortization expense related to amortizable intangible asset:
Net Carrying Amount, intangible assets subject to amortization	10.2	7.4
Trade names
Intangible assets:
Gross Carrying Amount, intangible assets subject to amortization	0.2	0.2
Accumulated Amortization, intangible assets subject to amortization	$ (0.2)	$ (0.2)