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Reportable Segments and Geographic Data (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Segment Reporting Information [Line Items]      
Capital expenditures and purchased software $ 27,504 $ 31,048 $ 41,863
Albany Door Systems [Member]
     
Segment Reporting Information [Line Items]      
Capital expenditures and purchased software $ 1,200 $ 600 $ 600