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Other Assets	9 Months Ended
Other Assets	Aug. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets In July 2018, we acquired a minority interest in the White Pass & Yukon Route (“White Pass”) division of TWC Enterprises Ltd. that includes White Pass’ port, railroad and retail operations in Skagway, Alaska.