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Valuation And Qualifying Accounts
 12 Months Ended
Dec. 31, 2011
Valuation And Qualifying Accounts [Abstract]  
Valuation And Qualifying Accounts
Schedule II – Valuation and Qualifying Accounts
 
(In thousands of U.S. dollars)
 
   
Column A
  
Column B
  
Column C
  
Column D
  
Column E
  
Description
  
Balance at Beginning of Period
  
Additions (Charged to Costs and Expenses)
  
Deductions (Write-Offs and Actual Losses Incurred)
  
Additions Resulting from Acquisitions
  
Balance at End of Period
  
Year Ended December 31, 2011:
                            
Provisions for Losses on Long-Term Contracts (*)
    
136,070
  
104,560
    
43,650
  
–
    
196,980
  
Provisions for Claims and Potential Contractual Penalties and Others
    
6,618
  
2,160
    
542
  
–
    
8,236
  
Allowance for Doubtful Accounts
    
11,215
  
56
    
4,410
  
–
    
6,861
  
Valuation Allowance on Deferred Taxes
    
160
  
1,302
    
160
  
–
    
1,302
  
                             
Year Ended December 31, 2010:
                            
Provisions for Losses on Long-Term Contracts (*)
    
136,341
  
35,443
    
36,360
  
646
    
136,070
  
Provisions for Claims and Potential Contractual Penalties and Others
    
5,864
  
1,262
    
1,103
  
595
    
6,618
  
Allowance for Doubtful Accounts
    
7,885
  
904
    
349
  
2,775
    
11,215
  
Valuation Allowance on Deferred Taxes (**)
    
34,776
  
–
    
34,616
  
–
    
160
  
                             
Year Ended December 31, 2009:
                            
Provisions for Losses on Long-Term Contracts (*)
    
99,323
  
67,725
    
30,707
  
–
    
136,341
  
Provisions for Claims and Potential Contractual Penalties and Others
    
3,025
  
4,928
    
2,109
  
–
    
5,864
  
Allowance for Doubtful Accounts
    
5,471
  
2,726
    
312
  
–
    
7,885
  
Valuation Allowance on Deferred Taxes
    
36,282
  
–
    
1,506
  
–
    
34,776
  
 
*
An amount of $60,848, $74,407 and $74,509 as of December 31, 2009, 2010 and 2011, respectively, is presented as a deduction from inventories, and an amount of $75,493, $61,663 and $122,471 as of December 31, 2009, 2010 and 2011, respectively, is presented as part of other accrued expenses in the category of "Cost Provisions and Other." The 2011 amount of other accrued expenses includes $57,189 related to the cessation of  a program with a foreign customer, of which $13,300 was included in long-term liabilities.
** 
An amount of $21,500 was deducted as a result of a prior year adjustment.