Restructuring Charges (Tables)
 6 Months Ended
May. 31, 2015
2015 Restructuring Activities [Member]  
Restructuring Cost and Reserve [Line Items]  
Summary of Restructuring Activity
A summary of activity for the 2015 restructuring action is as follows (in thousands):

 
Excess
Facilities and
Other Costs
 
Employee Severance and Related Benefits
 
Total
Balance, December 1, 2014
$
—

 
$
—

 
$
—

Costs incurred
4,010

 
858

 
4,868

Cash disbursements
(36
)
 
(782
)
 
(818
)
Asset impairment
(3,947
)
 
—

 
(3,947
)
Translation adjustments and other
102

 
(4
)
 
98

Balance, May 31, 2015
$
129

 
$
72

 
$
201
2014 Restructuring Activities [Member]  
Restructuring Cost and Reserve [Line Items]  
Summary of Restructuring Activity
A summary of the first six months of fiscal year 2015 activity for the 2014 restructuring action is as follows (in thousands):

 
Excess
Facilities and
Other Costs
 
Employee Severance and Related Benefits
 
Total
Balance, December 1, 2014
$
—

 
$
1,227

 
$
1,227

Costs incurred
125

 
1,204

 
1,329

Cash disbursements
(16
)
 
(1,581
)
 
(1,597
)
Translation adjustments and other
—

 
(36
)
 
(36
)
Balance, May 31, 2015
$
109

 
$
814

 
$
923
2012 and 2013 Restructuring Activities [Member]  
Restructuring Cost and Reserve [Line Items]  
Summary of Restructuring Activity
A summary of the first six months of fiscal year 2015 activity for the 2013 and 2012 restructuring actions is as follows (in thousands):

 
Excess
Facilities and
Other Costs
 
Employee Severance and Related Benefits
 
Total
Balance, December 1, 2014
$
416

 
$
—

 
$
416

Costs incurred
(44
)
 
—

 
(44
)
Cash disbursements
(138
)
 
—

 
(138
)
Translation adjustments and other
(20
)
 
—

 
(20
)
Balance, May 31, 2015
$
214

 
$
—

 
$
214