CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Cash flows from operating activities:
Net earnings	$ 493,865	$ 171,365
Adjustments to reconcile net earnings to net cash used in operating activities:
Depreciation and amortization	20,159	14,557
Income on loans to and investments in related parties	(57,541)	(26,922)
Distributions received on investments in related parties	0	35,949
Other adjustments	(100,094)	80,132
Net change in assets and liabilities:
Securities deposited with clearing and depository organizations	(84,307)	(296,514)
Receivables:
Brokers, dealers and clearing organizations	(585,369)	(1,368,785)
Customers	(576,526)	(48,064)
Fees, interest and other	(86,402)	(18,295)
Securities borrowed	(211,177)	910,494
Financial instruments owned	(869,326)	(1,555,782)
Securities purchased under agreements to resell	(1,576,329)	(614,635)
Other assets	(48,342)	(246,208)
Payables:
Brokers, dealers and clearing organizations	767,964	1,635,066
Customers	(160,488)	(51,154)
Securities loaned	704,075	371,286
Financial instruments sold, not yet purchased	2,330,574	(638,098)
Securities sold under agreements to repurchase	(1,114,857)	909,654
Lease liabilities	(11,297)	(16,331)
Accrued expenses and other liabilities	(382,976)	(140,411)
Net cash used in operating activities	(1,548,394)	(892,696)
Cash flows from investing activities:
Contributions to loans to and investments in related parties	(912,340)	(855,609)
Capital distributions from investments and repayments of loans from related parties	952,882	850,739
Net payments on premises and equipment	(16,897)	(32,071)
Transfer of net assets from Jefferies Financial Group Inc.	(2,173)	0
Net cash provided by (used in) investing activities	21,472	(36,941)
Cash flows from financing activities:
Proceeds from short-term borrowings	319,000	472,000
Payments on short-term borrowings	(196,090)	(362,000)
Proceeds from issuance of long-term debt, net of issuance costs	58,983	170,770
Repayment of long-term debt	(10,089)	(35,629)
Contributions from Jefferies Financial Group Inc.	153,557	0
Distributions to Jefferies Financial Group Inc.	(307,114)	(12,580)
Net proceeds from (payments on) other secured financings	1,033,008	(300,867)
Net change in bank overdrafts	(4,706)	(34,518)
Proceeds from contributions of noncontrolling interests	0	17,100
Payments on distributions to noncontrolling interests	(1,473)	0
Net cash provided by (used in) financing activities	1,045,076	(85,724)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	3,886	(2,927)
Net decrease in cash, cash equivalents and restricted cash	(477,960)	(1,018,288)
Cash, cash equivalents and restricted cash at beginning of period	7,682,013	6,329,712
Cash, cash equivalents and restricted cash at end of period	7,204,053	5,311,424
Cash paid during the period for
Interest	236,116	357,925
Income taxes, net	$ 29,953	$ 3,524