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Operating Leases (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2015
Nov. 30, 2014
Nov. 30, 2013
Leasing of industrial, flex and office space and the lease of the farm in Florida      
Operating leases of lessor, future minimum rentals to be received      
2016 $ 22,804    
2017 21,337    
2018 18,038    
2019 15,493    
2020 13,150    
Later years 24,360    
Total 115,182    
Corporate headquarters      
Operating leases of lessee, future minimum rental payments      
2016 149    
Rental expense $ 201 $ 210 $ 242