Goodwill and Intangible Assets, Amortization Table (Details) (USD $) In Millions	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2011	Sep. 30, 2010
Expected amortization of intangible assets for the next five years
2012		$ 2.0
2013		1.7
2014		1.6
2015		1.6
2016		1.6
Total		8.5
Goodwill and Intangible Assets (Textuals) [Abstract]
Amortization expense related to defined-lived intangible assets recorded in Fabricated products Segment	$ 0.5	$ 1.6	$ 0.1

Goodwill And Intangible Assets.

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Aggregate amount of intangible asset amortization recognized as expense during the period.

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The amount of amortization expense expected to be recognized during year five of the five succeeding fiscal years.

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