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RETIREMENTS OF LONG-LIVED ASSETS (Tables)
12 Months Ended
Nov. 30, 2013
Impairment or Disposal of Tangible Assets Disclosure [Abstract]  
Schedule of charges relating to retirement of long-lived assets
The Company recorded before-tax charges relating to retirements of long-lived assets during the fiscal years ending November 30, as follows (in thousands):
 
 
2011
 
2012
 
2013
Losses on retirements of long-lived assets
 
$
4,687

 
$
11,143

 
$
16,607

Less: cash portion of losses on asset retirements
 

 
3,088

 
6,584

Non-cash losses on retirements of long-lived assets
 
$
4,687

 
$
8,055

 
$
10,023