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Property, Plant and Equipment (Tables)
 12 Months Ended
Nov. 30, 2013
Property, Plant and Equipment [Abstract]  
Schedule of property, plant and equipment
Property, plant and equipment included the following assets at November 30, 2013 and 2012:

 
2013
 
2012
Land
$
9,444

 
$
9,326

Buildings and building fixtures
119,207

 
107,857

Machinery and equipment
388,669

 
372,358

Construction in process
24,420

 
20,578

 
541,740

 
510,119

Accumulated depreciation
(332,787
)
 
(315,018
)
 
$
208,953

 
$
195,101