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Discontinued Operations (Narrative) (Details) (USD $)	9 Months Ended		0 Months Ended	1 Months Ended	9 Months Ended
Discontinued Operations (Narrative) (Details) (USD $)	Sep. 30, 2011	Sep. 30, 2010	Mar. 10, 2011 United Steel Products Business [Member]	Feb. 01, 2010 Processed Metal Products Business [Member]	Sep. 30, 2010 Processed Metal Products Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from sale of businesses	$ 59,029,000	$ 29,164,000	$ 59,029,000	$ 29,164,000
Recognized pre-tax gain from transaction	14,022,000	(30,875,000)	14,022,000
Tax benefit from the transaction					11,424,000
After-tax loss from the transaction					$ 19,451,000

Tax expense or benefit on the gain (loss), not previously recognized and resulting from the sale of a business component, which is recognized at the date of sale. A gain (loss) reflects the amount by which the consideration received exceeds (is exceeded by) the net carrying amount (reflecting previous provisions for loss on disposal, if any) of the disposal group.

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