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General (Tables)
 12 Months Ended
Dec. 31, 2011
M7 Aerospace [Member]
  
Business Acquisition [Line Items]  
Fair Value Of Assets And Liabilities Assumed For Purchase Price Allocation
   
Fair Value
 
Expected useful lives
Working capital
  $ 30,959    
Long-term assets and investments
    17    
Property, plant and equipment
    2,654    
Long-term liabilities
    (1,925 )  
Technology
    13,800  
15 years
Customer relationships and backlog
    7,100  
5 years
Brand name
    1,900  
2 years
Goodwill
    29,911    
    $ 84,416    
Soltam And Saymar [Member]
  
Business Acquisition [Line Items]  
Fair Value Of Assets And Liabilities Assumed For Purchase Price Allocation
   
Fair value
 
Expected useful lives
Working capital, net
  $ (59,650 )  
Long-term assets and investments
    8,166    
Property, plant and equipment
    50,750    
Long-term liabilities
    (44,948 )  
Technology
    17,300  
10 years
IPR&D
    8,900  
10 years
Customer relationships and backlog
    11,400  
5-10 years
Trade name
    3,100  
8 years
Licenses
    1,020  
7 years
Non-competition
    700  
4 years
Non-controlling interest
    (4,592 )  
Deferred taxes
    (5,866 )  
Goodwill
    94,292    
    $ 80,572