Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Aug. 31, 2015	Aug. 31, 2014
Cash flows from operating activities:
Net earnings	$ 75,219	$ 261,079
Adjustments to reconcile net earnings to net cash used in operating activities:
Depreciation and amortization	10,784	(9,409)
Income on loans to and investments in related parties	(87,692)	(73,640)
Distributions received on investments in related parties	70,825	43,440
Other adjustments	(64,479)	(41,678)
Net change in assets and liabilities:
Cash and securities segregated and on deposit for regulatory purposes or deposited with clearing and depository organizations	2,538,334	316,049
Receivables:
Brokers, dealers and clearing organizations	100,690	(298,153)
Customers	(52,530)	(612,457)
Fees, interest and other	(41,759)	(6,687)
Securities borrowed	(852,183)	(908,113)
Financial instruments owned	(321,076)	(1,955,672)
Investments in managed funds	14,508	9,957
Securities purchased under agreements to resell	(351,875)	(820,235)
Other assets	(8,988)	(26,031)
Payables:
Brokers, dealers and clearing organizations	192,867	638,448
Customers	(3,454,703)	730,493
Securities loaned	1,049,172	(40,086)
Financial instruments sold, not yet purchased	601,758	2,634,241
Securities sold under agreements to repurchase	176,960	(252,215)
Accrued expenses and other liabilities	(204,520)	14,202
Net cash used in operating activities	(608,688)	(396,467)
Cash flows from investing activities:
Contributions to loans to and investments in related parties	(1,111,830)	(1,196,634)
Distributions from loans to and investments in related parties	1,119,775	1,297,139
Net payments on premises and equipment	(51,348)	(83,968)
Deconsolidation of asset management entity	(16,512)	(137,856)
Cash received from contingent consideration	2,541	5,215
Net cash used in investing activities	(57,374)	(116,104)
Cash flows from financing activities:
Excess tax benefits from the issuance of share-based awards	423	1,640
Proceeds from short-term borrowings	14,422,000	13,566,163
Payments on short-term borrowings	(14,422,000)	(13,486,163)
Proceeds from secured credit facility	903,000	1,740,000
Payments on secured credit facility	(1,073,000)	(1,682,000)
Net proceeds from other secured financings	200,810	381,955
Net proceeds from issuance of senior notes, net of issuance costs	0	681,222
Repayment of long-term debt	0	(250,000)
Proceeds from contributions of noncontrolling interests	0	31,076
Net cash provided by financing activities	31,233	983,893
Effect of exchange rate changes on cash and cash equivalents	(3,354)	2,798
Net (decrease) increase in cash and cash equivalents	(638,183)	474,120
Cash and cash equivalents at beginning of period	4,079,968	3,561,119
Cash and cash equivalents at end of period	3,441,785	4,035,239
Cash paid during the period for:
Interest	621,279	752,429
Income taxes, net	$ 1,574	$ 117,300