Other Income - Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016	Oct. 31, 2016
Other Nonoperating Income By Component [Line Items]
Interest income	$ 1,904	$ 676	$ 3,834	$ 1,612
Income from Ancillary Businesses, net	3,709	4,139	10,555	11,559
Management fee income from unconsolidated entities, net	2,477	2,348	10,448	6,863
Retained customer deposits	1,407	780	4,461	4,449
Income from land sales	2,417	6,527	7,503	11,018
Other	286	549	342	1,622
Total other income - net	11,980	15,121	39,793	43,474	$ 58,218
Revenues and expenses of non-core ancillary businesses
Revenue	34,733	32,823	95,317	85,955
Expense	31,024	28,684	84,762	74,396
Gibraltar [Member]
Other Nonoperating Income By Component [Line Items]
Gibraltar	$ (220)	$ 102	$ 2,650	$ 6,351