Acquisitions (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013 Alumicor Limited [Member]	Nov. 05, 2013 Alumicor Limited [Member]
Business Acquisition [Line Items]
Business Acquisition, Purchase Price Allocation, Assets Acquired				$ 17,168
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment				8,255
Business Acquisition, Purchase Price Allocation, Goodwill Amount				31,017
Business Acquisition, Purchase Price Allocation, Current Liabilities				(5,634)
Payments to Acquire Businesses, Net of Cash Acquired	$ 52,806	$ 15	$ 50,806

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The amount of acquisition cost of a business combination allocated to current assets.

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- Definition

The amount of acquisition cost of a business combination allocated to current liabilities of the acquired entity.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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

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-Name Accounting Standards Codification

-Glossary Investing Activities

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