Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Cash flows from operating activities:
Net earnings (loss)	$ 267,635	$ (71,669)
Adjustments to reconcile net earnings (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	1,820	(2,888)
(Income) loss on loans to and investments in related parties	(65,323)	15,862
Distributions received on investments in related parties	8,021	11,187
Other adjustments	91,313	13,359
Net change in assets and liabilities:
Cash and securities segregated and on deposit for regulatory purposes or deposited with clearing and depository organizations	(45,746)	(277,019)
Receivables:
Brokers, dealers and clearing organizations	(546,424)	(392,632)
Customers	(448,494)	341,930
Fees, interest and other	(31,877)	(35,514)
Securities borrowed	0	(1,510,588)
Financial instruments owned	(176,662)	2,079,134
Investments in managed funds	16,582	(132,941)
Securities purchased under agreements to resell	524,937	(248,931)
Other assets	(50,147)	(236,907)
Payables:
Brokers, dealers and clearing organizations	(652,668)	781,782
Customers	162,387	(31,159)
Securities loaned	(68,310)	(22,326)
Financial instruments sold, not yet purchased	50,267	1,269,261
Securities sold under agreements to repurchase	1,668,725	(1,824,027)
Accrued expenses and other liabilities	209,756	68,024
Net cash provided by (used in) operating activities	915,792	(206,062)
Cash flows from investing activities:
Contributions to loans to and investments in related parties	(2,916,204)	(343,835)
Distributions from loans to and investments in related parties	2,729,276	485,620
Net payments on premises and equipment	(53,595)	(51,001)
Payment on purchase of aircraft	0	(27,500)
Proceeds from sale of aircraft	0	29,450
Deconsolidation of asset management entity	0	(39)
Cash received from contingent consideration	1,342	1,211
Net cash provided by (used in) investing activities	(239,181)	93,906
Cash flows from financing activities:
Proceeds from short-term borrowings	25,784,561	8,350,534
Payments on short-term borrowings	(25,887,517)	(8,229,669)
Net payments on other secured financings	(203,036)	(156,602)
Proceeds from issuance of long-term debt, net of issuance costs	1,030,027	239,779
Repayment of long-term debt	(121,957)	(373,246)
Net change in bank overdrafts	(5,764)	(56,126)
Net proceeds from noncontrolling interests	0	3,937
Net cash provided by (used in) financing activities	596,314	(221,393)
Effect of exchange rate changes on cash and cash equivalents	4,730	(17,471)
Net increase (decrease) in cash and cash equivalents	1,277,655	(351,020)
Cash and cash equivalents at beginning of period	3,529,069	3,510,163
Cash and cash equivalents at end of period	4,806,724	3,159,143
Cash paid (received) during the period for
Interest	777,969	675,896
Income taxes, net	$ 3,329	$ (8,011)