Other Income - Net (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Oct. 31, 2016
Other Nonoperating Income By Component [Line Items]
Interest income	$ 941	$ 404
Income from Ancillary Businesses	2,297	3,729
Management fee income from unconsolidated entities	4,289	2,107
Retained customer deposits	1,746	2,113
Income from land sales	3,559	3,998
Other	(67)	541
Total other income - net	12,703	13,720	$ 58,218
Revenues and expenses of non-core ancillary businesses
Revenue	28,528	24,869
Expense	26,231	21,140
Gibraltar [Member]
Other Nonoperating Income By Component [Line Items]
Gibraltar	$ (62)	$ 828