Fair Value (Details) - USD ($) $ in Thousands	May 31, 2016	Nov. 30, 2015
Financial assets and liabilities carried at fair value and measured at fair value on a recurring basis:
Marketable equity securities	$ 1,449	$ 1,970
Interest rate swap liabilities	4,046	3,981
Recurring basis | Level 1
Financial assets and liabilities carried at fair value and measured at fair value on a recurring basis:
Marketable equity securities	1,449
Interest rate swap liabilities		1,970
Recurring basis | Level 2
Financial assets and liabilities carried at fair value and measured at fair value on a recurring basis:
Interest rate swap liabilities	$ 3,858	$ 2,766