Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	May 31, 2017	May 31, 2016
Cash flows from operating activities:
Net earnings (loss)	$ 183,810	$ (112,827)
Adjustments to reconcile net earnings (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	752	(2,945)
(Income) loss on loans to and investments in related parties	(54,495)	31,252
Distributions received on investments in related parties	6,189	8,108
Other adjustments	40,160	17,085
Net change in assets and liabilities:
Cash and securities segregated and on deposit for regulatory purposes or deposited with clearing and depository organizations	(61,097)	(85,446)
Receivables:
Brokers, dealers and clearing organizations	(832,729)	(339,496)
Customers	(372,368)	94,471
Fees, interest and other	(87,192)	(89,147)
Securities borrowed	(143,554)	(604,046)
Financial instruments owned	(25,941)	1,388,017
Investments in managed funds	17,032	(124,398)
Securities purchased under agreements to resell	(452,154)	612,660
Other assets	(109,591)	(346,414)
Payables:
Brokers, dealers and clearing organizations	(969,230)	(246,180)
Customers	300,774	(367,505)
Securities loaned	616,701	(28,625)
Financial instruments sold, not yet purchased	598,801	1,201,318
Securities sold under agreements to repurchase	1,818,042	(1,531,853)
Accrued expenses and other liabilities	116,605	82,055
Net cash provided by (used in) operating activities	590,515	(443,916)
Cash flows from investing activities:
Contributions to loans to and investments in related parties	(2,642,607)	(163,560)
Distributions from loans to and investments in related parties	2,579,746	313,411
Net payments on premises and equipment	(39,918)	(35,181)
Payment on purchase of aircraft	0	(27,500)
Deconsolidation of asset management entity	0	(39)
Cash received from contingent consideration	1,250	826
Net cash provided by (used in) investing activities	(101,529)	87,957
Cash flows from financing activities:
Proceeds from short-term borrowings	16,887,408	4,840,438
Payments on short-term borrowings	(16,972,566)	(4,753,891)
Net payments on other secured financings	(369,626)	(122,789)
Net proceeds from issuance of long-term debt, net of issuance costs	866,600	127,941
Repayment of long-term debt	(75,730)	(350,600)
Net change in bank overdrafts	(1,544)	(54,508)
Net proceeds from noncontrolling interests	0	3,937
Net cash provided by (used in) financing activities	334,542	(309,472)
Effect of exchange rate changes on cash and cash equivalents	4,196	(5,903)
Net increase (decrease) in cash and cash equivalents	827,724	(671,334)
Cash and cash equivalents at beginning of period	3,529,069	3,510,163
Cash and cash equivalents at end of period	4,356,793	2,838,829
Cash paid (received) during the period for
Interest	488,705	422,558
Income taxes, net	$ 3,576	$ (7,596)