Derivative Financial Instruments - Fair Value and Related Number of Derivative Contracts Categorized by Type of Derivative Contract (Details) $ in Thousands	Aug. 31, 2024 USD ($) Contract	Nov. 30, 2023 USD ($) Contract
Derivatives, Fair Value [Line Items]
Net amounts per consolidated statements of financial condition, assets	$ 532,515	$ 550,844
Net amounts per consolidated statements of financial condition, liabilities	638,340	1,145,777
Exchange-traded
Derivatives, Fair Value [Line Items]
Fair value, assets	538,717	678,917
Fair value, liabilities	431,222	393,316
Amounts offset in the consolidated statements of financial condition, assets	(389,719)	(384,392)
Amounts offset in the consolidated statements of financial condition, liabilities	(389,719)	(384,392)
Cleared OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	864,636	1,194,983
Fair value, liabilities	885,094	1,230,060
Amounts offset in the consolidated statements of financial condition, assets	(863,799)	(1,189,517)
Amounts offset in the consolidated statements of financial condition, liabilities	(869,789)	(1,189,513)
Bilateral OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	1,399,376	1,784,564
Fair value, liabilities	1,700,154	2,286,973
Amounts offset in the consolidated statements of financial condition, assets	(1,016,696)	(1,533,711)
Amounts offset in the consolidated statements of financial condition, liabilities	(1,118,622)	(1,190,667)
Derivatives designated as accounting hedges
Derivatives, Fair Value [Line Items]
Fair value, assets	0	259
Fair value, liabilities	41,448	25,708
Derivatives designated as accounting hedges \| Interest rate contracts \| Cleared OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 0	$ 0
Number of contracts, assets \| Contract	0	0
Fair value, liabilities	$ 3,557	$ 6,070
Number of contracts, liabilities \| Contract	3	3
Derivatives designated as accounting hedges \| Foreign exchange contracts \| Bilateral OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 0	$ 259
Number of contracts, assets \| Contract	0	1
Fair value, liabilities	$ 37,891	$ 19,638
Number of contracts, liabilities \| Contract	3	3
Derivatives not designated as accounting hedges
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 2,802,729	$ 3,658,205
Fair value, liabilities	2,975,022	3,884,641
Derivatives not designated as accounting hedges \| Interest rate contracts \| Exchange-traded
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 1,248	$ 316
Number of contracts, assets \| Contract	76,019	88,354
Fair value, liabilities	$ 411	$ 63
Number of contracts, liabilities \| Contract	74,671	67,643
Derivatives not designated as accounting hedges \| Interest rate contracts \| Cleared OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 854,712	$ 1,156,937
Number of contracts, assets \| Contract	6,146	4,415
Fair value, liabilities	$ 860,359	$ 1,185,503
Number of contracts, liabilities \| Contract	6,185	4,544
Derivatives not designated as accounting hedges \| Interest rate contracts \| Bilateral OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 513,138	$ 893,983
Number of contracts, assets \| Contract	1,728	1,179
Fair value, liabilities	$ 783,131	$ 1,266,506
Number of contracts, liabilities \| Contract	874	786
Derivatives not designated as accounting hedges \| Foreign exchange contracts \| Exchange-traded
Derivatives, Fair Value [Line Items]
Fair value, assets		$ 0
Number of contracts, assets \| Contract		0
Fair value, liabilities		$ 0
Number of contracts, liabilities \| Contract		4
Derivatives not designated as accounting hedges \| Foreign exchange contracts \| Bilateral OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 106,721	$ 147,470
Number of contracts, assets \| Contract	53,117	66,254
Fair value, liabilities	$ 110,132	$ 129,770
Number of contracts, liabilities \| Contract	33,513	38,585
Derivatives not designated as accounting hedges \| Equity contracts \| Exchange-traded
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 537,457	$ 678,542
Number of contracts, assets \| Contract	1,044,597	1,180,832
Fair value, liabilities	$ 430,790	$ 393,220
Number of contracts, liabilities \| Contract	914,419	1,174,298
Derivatives not designated as accounting hedges \| Equity contracts \| Bilateral OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 743,300	$ 715,754
Number of contracts, assets \| Contract	30,924	31,116
Fair value, liabilities	$ 748,483	$ 850,088
Number of contracts, liabilities \| Contract	18,918	16,234
Derivatives not designated as accounting hedges \| Commodity contracts \| Exchange-traded
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 12	$ 59
Number of contracts, assets \| Contract	629	735
Fair value, liabilities	$ 21	$ 33
Number of contracts, liabilities \| Contract	574	940
Derivatives not designated as accounting hedges \| Commodity contracts \| Bilateral OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 5,263	$ 5,662
Number of contracts, assets \| Contract	12,739	15,497
Fair value, liabilities	$ 1,530	$ 1,398
Number of contracts, liabilities \| Contract	5,490	6,455
Derivatives not designated as accounting hedges \| Credit contracts \| Cleared OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 9,924	$ 38,046
Number of contracts, assets \| Contract	40	133
Fair value, liabilities	$ 21,178	$ 38,487
Number of contracts, liabilities \| Contract	23	81
Derivatives not designated as accounting hedges \| Credit contracts \| Bilateral OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 30,954	$ 21,436
Number of contracts, assets \| Contract	15	22
Fair value, liabilities	$ 18,987	$ 19,573
Number of contracts, liabilities \| Contract	38	29

The number of derivative instruments of a particular derivative asset or group of derivative assets held by the entity.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, after effect of master netting arrangement and deduction of obligation to return financial collateral not offset and financial instrument subject to master netting arrangement not offset, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset. Includes derivative not subject to master netting arrangement or similar agreement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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The number of derivative instruments of a particular derivative liability or group of derivative liabilities held by the entity.

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Fair value of obligations arising from derivatives and other contracts sold short.

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