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Restructuring Charges (Tables)
 12 Months Ended
Nov. 30, 2012
2012 Restructuring Activities [Member]
  
Restructuring Cost and Reserve [Line Items]  
Summary of Restructuring Activity
A summary of activity for the 2012 restructuring actions is as follows (in thousands):

 
Excess
Facilities and
Other Costs
 
Employee Severance and Related Benefits
 
Total
Balance, December 1, 2011
$
—

 
$
—

 
$
—

Costs incurred
2,644

 
16,367

 
19,011

Cash disbursements
(1,136
)
 
(9,997
)
 
(11,133
)
Asset impairment
(898
)
 
—

 
(898
)
Translation adjustments and other
(7
)
 
59

 
52

Balance, November 30, 2012
$
603

 
$
6,429

 
$
7,032
2010 Restructuring Activities [Member]
  
Restructuring Cost and Reserve [Line Items]  
Summary of Restructuring Activity
A summary of activity for the 2010 restructuring actions is as follows (in thousands):
 
 
Excess
Facilities and
Other Costs
 
Employee
Severance and
Related Benefits
 
Total
Balance, December 1, 2011
$
4,913

 
$
698

 
$
5,611

Costs incurred
(1,269
)
 
—

 
(1,269
)
Cash disbursements
(3,878
)
 
(412
)
 
(4,290
)
Translation adjustments and other
234

 
(11
)
 
223

Balance, November 30, 2012
$
—

 
$
275

 
$
275