This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

-Number 210

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

+ Details

Investments in Unconsolidated Affiliates (Hamer and Bri-Mar) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Subsidiary, Sale of Stock [Line Items]
Equity in earnings of unconsolidated affiliates, net of tax	$ 9.2	$ 10.2
Investments in unconsolidated affiliates	383.6		387.9
Hamer and Bri-Mar
Subsidiary, Sale of Stock [Line Items]
Equity in earnings of unconsolidated affiliates, net of tax	0.3
Hamer, LLC
Subsidiary, Sale of Stock [Line Items]
Investments in unconsolidated affiliates	3.8		4.0
Bri-Mar Manufacturing, LLC
Subsidiary, Sale of Stock [Line Items]
Investments in unconsolidated affiliates	$ 1.8		$ 1.9