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Acquisition (Details 1) (Alumicor Limited [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Jun. 01, 2013
Alumicor Limited [Member]
 
Business Acquisition [Line Items]  
Business Acquisition, Pro Forma Revenue $ 192,363
Business Acquisition, Pro Forma Net Income (Loss) $ 4,523
Business Acquisition, Pro Forma Earnings Per Share, Basic $ 0.16
Business Acquisition, Pro Forma Earnings Per Share, Diluted $ 0.15