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Restructuring Charges (Tables)
 9 Months Ended
Aug. 31, 2014
2013 Restructuring Activities [Member]
  
Restructuring Cost and Reserve [Line Items]  
Summary of Restructuring Activity
A summary of activity for the 2013 restructuring action and the accrual balance is as follows (in thousands):

 
Excess
Facilities and
Other Costs
 
Employee Severance and Related Benefits
 
Total
Balance, December 1, 2013
$
569

 
$
1,077

 
$
1,646

Costs incurred
250

 
67

 
317

Cash disbursements
(507
)
 
(1,146
)
 
(1,653
)
Translation adjustments and other
(2
)
 
2

 
—

Balance, August 31, 2014
$
310

 
$
—

 
$
310
2012 Restructuring Activities [Member]
  
Restructuring Cost and Reserve [Line Items]  
Summary of Restructuring Activity
A summary of activity for the 2012 restructuring action and the accrual balance is as follows (in thousands):

 
Excess
Facilities and
Other Costs
 
Employee Severance and Related Benefits
 
Total
Balance, December 1, 2013
$
615

 
$
291

 
$
906

Costs incurred
219

 
(21
)
 
198

Cash disbursements
(480
)
 
(272
)
 
(752
)
Translation adjustments and other
(11
)
 
2

 
(9
)
Balance, August 31, 2014
$
343

 
$
—

 
$
343