Discontinued Operations - Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended
	Sep. 30, 2013	Sep. 16, 2013 Tungsten Materials Business	Sep. 30, 2013 Fabricated Components Business	Sep. 30, 2013 Fabricated Components Business	Sep. 30, 2013 Fabricated Components Business Minimum	Sep. 30, 2013 Fabricated Components Business Maximum	Sep. 30, 2013 Iron Castings Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Estimated Sale Price, Disposed Operation		$ 605
Restructuring Charge	9.5		6.4				3.1
Impairment of Long-Lived Assets to be Disposed of			5.6
Lease Exit Costs			0.8
Restructuring and Related Cost, Expected Cost					3.8	4.3
Restructuring and Related Cost, Expected Cost, Period to be Incurred				4 years
Restructuring Charges, Net of Tax	$ 8.1