Investments in Unconsolidated Entities (Details 4) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Condensed Statements of Operations and Comprehensive Income:
Net income	$ 114,761	$ 146,318	$ 247,307	$ 387,692
Income (loss) from equity method investments	(2,566)	7,200	5,304	17,759
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Condensed Statements of Operations and Comprehensive Income:
Revenues	78,897	179,608	291,179	511,226
Cost of Revenue	57,778	154,787	203,127	443,740
Other expenses	27,237	22,674	100,419	64,027
Total expenses	85,015	177,461	303,546	507,767
Gain on disposition of loans and real estate owned	1,053	689	1,053	4,383
Income (loss) from operations	(5,065)	2,836	(11,314)	7,842
Other income	448	29,846	977	31,584
Income (loss) before income taxes	(4,617)	32,682	(10,337)	39,426
Income tax provision	37	201	(111)	596
Net income (loss) including earnings from noncontrolling interests	(4,654)	32,481	(10,226)	38,830
Less: (income) loss attributable to noncontrolling interest	34	(7,521)	34	(9,600)
Net income	(4,620)	24,960	(10,192)	29,230
Income (loss) from equity method investments	$ (2,566)	$ 7,200	$ 5,304	$ 17,759