Collateralized Transactions - Summary of Repurchase Agreements and Securities Borrowing and Lending Arrangements (Details) - USD ($) $ in Thousands	May 31, 2021	Nov. 30, 2020
Securities borrowing arrangements
Gross Amounts	$ 6,720,683	$ 6,934,762
Netting in Consolidated Statement of Financial Condition	0	0
Net Amounts in Consolidated Statement of Financial Condition	6,720,683	6,934,762
Additional Amounts Available for Setoff	(493,650)	(395,342)
Available Collateral	(2,083,503)	(1,706,046)
Net Amount	4,143,530	4,833,374
Reverse repurchase agreements
Gross Amounts	17,120,842	11,939,773
Netting in Consolidated Statement of Financial Condition	(10,203,617)	(6,843,004)
Net Amounts in Consolidated Statement of Financial Condition	6,917,225	5,096,769
Additional Amounts Available for Setoff	(618,350)	(412,327)
Available Collateral	(6,259,927)	(4,578,560)
Net Amount	38,948	105,882
Securities lending arrangements
Gross Amounts	2,277,423	1,810,748
Netting in Consolidated Statement of Financial Condition	0	0
Net Amounts in Consolidated Statement of Financial Condition	2,277,423	1,810,748
Additional Amounts Available for Setoff	(493,650)	(395,342)
Available Collateral	(1,718,328)	(1,397,550)
Net Amount	65,445	17,856
Repurchase agreements
Gross Amounts	17,282,939	15,159,273
Netting in Consolidated Statement of Financial Condition	(10,203,617)	(6,843,004)
Net Amounts in Consolidated Statement of Financial Condition	7,079,322	8,316,269
Additional Amounts Available for Setoff	(618,350)	(412,327)
Available Collateral	(5,933,921)	(7,122,422)
Net Amount	527,051	781,520
Securities borrowing arrangements	4,032,000	4,757,800
Securities borrowing arrangements, collateral	3,904,700	4,617,000
Repurchase agreements	520,000	720,000
Repurchase agreements, pledged securities collateral	$ 533,600	733,900
Obligation to return securities received as collateral, at fair value
Securities lending arrangements
Gross Amounts		7,517
Netting in Consolidated Statement of Financial Condition		0
Net Amounts in Consolidated Statement of Financial Condition		7,517
Additional Amounts Available for Setoff		0
Available Collateral		0
Net Amount		7,517
Securities received as collateral, at fair value
Securities borrowing arrangements
Gross Amounts		7,517
Netting in Consolidated Statement of Financial Condition		0
Net Amounts in Consolidated Statement of Financial Condition		7,517
Additional Amounts Available for Setoff		0
Available Collateral		0
Net Amount		$ 7,517

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