Derivative Financial Instruments - Remaining Contract Maturity of Fair Value of OTC Derivative Assets and Liabilities (Details) $ in Thousands	Nov. 30, 2021 USD ($)
Remaining Contract Maturity Of Fair Value Of Over Counter Derivative Assets And Liabilities [Line Items]
OTC derivative assets having maturity period of 0 to 12 months	$ 394,457
OTC derivative assets having maturity period of 1 to 5 years	120,404
OTC derivative assets having maturity period of greater than 5 years	115,016
OTC derivative assets cross-maturity netting	(34,513)
Total OTC derivative assets, net of cross-maturity netting	595,364
Cross-product counterparty netting	(60,489)
Total OTC derivative assets included in Financial instruments owned	534,875
OTC derivative liabilities having maturity period of 0 to 12 months	365,836
OTC derivative liabilities having maturity period of 1 to 5 years	1,486,034
OTC derivative liabilities having maturity period of greater than 5 years	187,959
OTC derivative liabilities cross-maturity netting	(34,513)
Total OTC derivative liabilities, net of cross-maturity netting	2,005,316
Cross-product counterparty netting	(60,489)
Total OTC derivative liabilities included in Financial instruments sold, not yet purchased	1,944,827
Exchange traded derivative assets	210,400
Cash collateral received	176,300
Exchange traded derivative liabilities, with fair value	31,500
Cash collateral pledged	572,800
Equity options and forwards
Remaining Contract Maturity Of Fair Value Of Over Counter Derivative Assets And Liabilities [Line Items]
OTC derivative assets having maturity period of 0 to 12 months	26,603
OTC derivative assets having maturity period of 1 to 5 years	3,524
OTC derivative assets having maturity period of greater than 5 years	0
OTC derivative assets cross-maturity netting	(8,181)
Total OTC derivative assets, net of cross-maturity netting	21,946
OTC derivative liabilities having maturity period of 0 to 12 months	15,539
OTC derivative liabilities having maturity period of 1 to 5 years	642,337
OTC derivative liabilities having maturity period of greater than 5 years	41,996
OTC derivative liabilities cross-maturity netting	(8,181)
Total OTC derivative liabilities, net of cross-maturity netting	691,691
Credit default swaps
Remaining Contract Maturity Of Fair Value Of Over Counter Derivative Assets And Liabilities [Line Items]
OTC derivative assets having maturity period of 0 to 12 months	1
OTC derivative assets having maturity period of 1 to 5 years	1,226
OTC derivative assets having maturity period of greater than 5 years	497
OTC derivative assets cross-maturity netting	0
Total OTC derivative assets, net of cross-maturity netting	1,724
OTC derivative liabilities having maturity period of 0 to 12 months	6
OTC derivative liabilities having maturity period of 1 to 5 years	13,690
OTC derivative liabilities having maturity period of greater than 5 years	11,632
OTC derivative liabilities cross-maturity netting	0
Total OTC derivative liabilities, net of cross-maturity netting	25,328
Loans/Bonds total return swaps
Remaining Contract Maturity Of Fair Value Of Over Counter Derivative Assets And Liabilities [Line Items]
OTC derivative assets having maturity period of 0 to 12 months	124,348
OTC derivative assets having maturity period of 1 to 5 years	24,144
OTC derivative assets having maturity period of greater than 5 years	0
OTC derivative assets cross-maturity netting	(1,211)
Total OTC derivative assets, net of cross-maturity netting	147,281
OTC derivative liabilities having maturity period of 0 to 12 months	149,353
OTC derivative liabilities having maturity period of 1 to 5 years	777,266
OTC derivative liabilities having maturity period of greater than 5 years	2,042
OTC derivative liabilities cross-maturity netting	(1,211)
Total OTC derivative liabilities, net of cross-maturity netting	927,450
Foreign currency forwards, swaps and options
Remaining Contract Maturity Of Fair Value Of Over Counter Derivative Assets And Liabilities [Line Items]
OTC derivative assets having maturity period of 0 to 12 months	186,348
OTC derivative assets having maturity period of 1 to 5 years	4,933
OTC derivative assets having maturity period of greater than 5 years	0
OTC derivative assets cross-maturity netting	(1,959)
Total OTC derivative assets, net of cross-maturity netting	189,322
OTC derivative liabilities having maturity period of 0 to 12 months	159,206
OTC derivative liabilities having maturity period of 1 to 5 years	10,028
OTC derivative liabilities having maturity period of greater than 5 years	0
OTC derivative liabilities cross-maturity netting	(1,959)
Total OTC derivative liabilities, net of cross-maturity netting	167,275
Fixed income forwards
Remaining Contract Maturity Of Fair Value Of Over Counter Derivative Assets And Liabilities [Line Items]
OTC derivative assets having maturity period of 0 to 12 months	31,527
OTC derivative assets having maturity period of 1 to 5 years	0
OTC derivative assets having maturity period of greater than 5 years	0
OTC derivative assets cross-maturity netting	0
Total OTC derivative assets, net of cross-maturity netting	31,527
OTC derivative liabilities having maturity period of 0 to 12 months	30,368
OTC derivative liabilities having maturity period of 1 to 5 years	0
OTC derivative liabilities having maturity period of greater than 5 years	0
OTC derivative liabilities cross-maturity netting	0
Total OTC derivative liabilities, net of cross-maturity netting	30,368
Interest rate swaps, options and forwards
Remaining Contract Maturity Of Fair Value Of Over Counter Derivative Assets And Liabilities [Line Items]
OTC derivative assets having maturity period of 0 to 12 months	25,630
OTC derivative assets having maturity period of 1 to 5 years	86,577
OTC derivative assets having maturity period of greater than 5 years	114,519
OTC derivative assets cross-maturity netting	(23,162)
Total OTC derivative assets, net of cross-maturity netting	203,564
OTC derivative liabilities having maturity period of 0 to 12 months	11,364
OTC derivative liabilities having maturity period of 1 to 5 years	42,713
OTC derivative liabilities having maturity period of greater than 5 years	132,289
OTC derivative liabilities cross-maturity netting	(23,162)
Total OTC derivative liabilities, net of cross-maturity netting	$ 163,204