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Restructuring (Tables)
6 Months Ended
Jun. 30, 2013
Restructuring and Related Activities [Abstract]  
Schedule of restructuring costs
We incurred the following restructuring costs: 

Three Months Ended June 30,
 
Six Months Ended June 30,
 
2012
 
2013
 
2012
 
2013



 


 


 


Restructuring costs included in cost of sales
$
1,202

 
$
1,606

 
$
2,676

 
$
3,228




 


 


 


Restructuring costs included in other expense
$
1,231

 
$
1,566

 
$
1,504

 
$
3,170

Schedule of restructuring accrual
Below is a rollforward of the accrual:
 
 
 
Balance as of January 1, 2013
 
$
4,120

 
 
 
Expenses incurred
 
2,126

 
 
 
Payments made
 
(2,747
)
 
 
 
Balance at June 30, 2013
 
$
3,499