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Inventories (Schedule of Inventories) (Details) - USD ($)
$ in Thousands
9 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Nov. 30, 2017
Inventory Disclosure [Abstract]      
Gain (Loss) on Extinguishment of Debt $ 0 $ (5,685)  
Inventory, Land Held-for-sale 13,900   $ 21,800
Inventories      
Homes under construction 1,394,895   1,236,848
Land under development 2,053,922   1,651,339
Land held for future development [1] 240,038   375,199
Total $ 3,688,855   $ 3,263,386
[1] Land held for sale totaled $13.9 million at August 31, 2018 and $21.8 million at November 30, 2017.