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Restructuring Charges (Tables)
9 Months Ended
Sep. 30, 2011
Restructuring Cost and Reserve [Line Items] 
Company's accrual for restructuring activities
 
Employee
Related
 
Other
 
Total
Balance at December 31, 2010
$
7,721

 
$
135

 
$
7,856

Restructuring charges
2,441

 
390

 
2,831

Cash payments
(3,602
)
 
(501
)
 
(4,103
)
Impact of foreign currency
101

 
—

 
101

Balance at September 30, 2011
$
6,661

 
$
24

 
$
6,685