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Restructuring Costs for Precision Motion and Technologies Segment Related to Germany Restructuring (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended 72 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 8,051 $ 2,048 $ 391  
GERMANY | Precision Motion and Technologies
       
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 276 $ 81 $ 461 $ 4,967