Investments in Unconsolidated Entities (Details 4) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Oct. 31, 2016
Condensed Statements of Operations and Comprehensive Income:
Revenues	$ 295,702	$ 42,486
Cost of revenues	165,706	35,513
Other expenses	21,134	9,307
Total expenses	186,840	44,820
Gain on disposition of loans and REO	8,886	25,983
Income (loss) from operations	117,748	23,649
Other income	2,586	1,005
Income before income taxes	120,334	24,654
Income tax provision	3,827	0
Net income including earnings from noncontrolling interests	116,507	24,654
Less: (income) loss attributable to noncontrolling interest	(2,080)	(11,610)
Net income (loss) attributable to controlling interest	114,427	13,044
Other comprehensive income (loss)	0	87
Total comprehensive income (loss)	114,427	13,131
Income (loss) from unconsolidated entities	$ 46,445	$ 8,638	$ 40,748