Collateralized Transactions Collateralized Transactions - Offsetting of Securities Financing Agreements (Details) - USD ($) $ in Thousands	Nov. 30, 2020	Nov. 30, 2019
Securities borrowing arrangements, Assets
Gross Amounts	$ 6,934,762	$ 7,624,642
Netting in Consolidated Statements of Financial Condition	0	0
Net Amounts in Consolidated Statements of Financial Condition	6,934,762	7,624,642
Additional amounts available for setoff	(395,342)	(361,394)
Available collateral	(1,706,046)	(1,479,433)
Net amount	4,833,374	5,783,815
Reverse repurchase agreements, Assets
Gross Amounts	11,939,773	15,551,845
Netting in Consolidated Statements of Financial Condition	(6,843,004)	(11,252,247)
Net Amounts in Consolidated Statements of Financial Condition	5,096,769	4,299,598
Additional amounts available for setoff	(412,327)	(291,316)
Available collateral	(4,578,560)	(3,929,977)
Net amount	105,882	78,305
Securities lending arrangements, Liabilities
Gross Amounts	1,810,748	1,525,140
Netting in Consolidated Statements of Financial Condition	0	0
Net Amounts in Consolidated Statements of Financial Condition	1,810,748	1,525,140
Additional amounts available for setoff	(395,342)	(361,394)
Available collateral	(1,397,550)	(970,799)
Net amount	17,856	192,947
Repurchase agreements, Liabilities
Gross Amounts	15,159,273	18,756,917
Netting in Consolidated Statements of Financial Condition	(6,843,004)	(11,252,247)
Net Amounts in Consolidated Statements of Financial Condition	8,316,269	7,504,670
Additional amounts available for setoff	(412,327)	(291,316)
Available collateral	(7,122,422)	(6,663,807)
Net amount	781,520	549,547
Securities borrowing agreement, subject to review	4,757,800	5,683,400
Securities borrowing agreement, collateral received, subject to review	4,617,000	5,523,600
Repurchase agreement, net amount, subject to review	720,000	439,700
Repurchase agreements, collateral pledged, subject to review	733,900	447,500
Obligation to return securities received as collateral, at fair value
Securities lending arrangements, Liabilities
Gross Amounts	7,517	9,500
Netting in Consolidated Statements of Financial Condition	0	0
Net Amounts in Consolidated Statements of Financial Condition	7,517	9,500
Additional amounts available for setoff	0	0
Available collateral	0	0
Net amount	7,517	9,500
Securities received as collateral, at fair value
Securities borrowing arrangements, Assets
Gross Amounts	7,517	9,500
Netting in Consolidated Statements of Financial Condition	0	0
Net Amounts in Consolidated Statements of Financial Condition	7,517	9,500
Additional amounts available for setoff	0	0
Available collateral	0	0
Net amount	$ 7,517	$ 9,500

Securities Borrowed Asset, Collateral Received, Subject to Review

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Securities Sold under Agreements to Repurchase, Collateral Pledged, Subject to Review

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Amount, after the effects of master netting arrangements, of funds outstanding loaned in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price. Includes purchases of participations in pools of securities that are subject to a resale agreement, assets not subject to a master netting arrangement and not elected to be offset.

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