Discontinued Operations	12 Months Ended
Discontinued Operations	Dec. 31, 2011
Discontinued Operations [Abstract]
Discontinued Operations	19 DISCONTINUED OPERATIONS On February 12, 2008, we sold our aluminum extrusions business in Canada for approximately $25.0 million to an affiliate of H.I.G. Capital. All historical results for this business have been reflected as discontinued operations; however, cash flows for discontinued operations have not been separately disclosed in the consolidated statements of cash flows. In 2011, an accrual of $4.4 million ($4.4 million net of tax) was made for indemnifications under the purchase agreement related to environmental matters.

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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