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Restructuring Activities (Tables)
12 Months Ended
Dec. 31, 2012
Restructuring Activities [Abstract]  
Restructuring plan related to discontinued operations
         
    Facility
Consolidation
Costs
 

Balance at January 1, 2010

  $ 0  

Accrued and expensed

    835  

Adjustments and revisions

    103  
   

 

 

 

Balance at December 31, 2010

    938  

Charged against accrual

    (447

Adjustments and revisions

    (125
   

 

 

 

Balance at December 31, 2011

    366  

Charged against accrual

    (281

Adjustments and revisions

    39  
   

 

 

 

Balance at December 31, 2012

  $ 124  
   

 

 

 
Restructuring plan related to continuing operations
                                 
    Facility
Consolidation
Costs
    Employee
Separation
Costs
    Asset
Impairment
Costs
    Total  

Balance at January 1, 2011

  $ 0     $ 0     $ 0     $ 0  

Accrued and expensed

    145       2,244       520       2,909  

Charged against accrual

    2       (2,021     (520     (2,539

Adjustments and revisions

    34       0       0       34  
   

 

 

   

 

 

   

 

 

   

 

 

 

Balance at December 31, 2011

    181       223       0       404  

Charged against accrual

    (159     (214     0       (373

Adjustments and revisions

    39       (9     0       30  
   

 

 

   

 

 

   

 

 

   

 

 

 

Balance at December 31, 2012

  $ 61     $ 0     $ 0     $ 61