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Derivatives, Derivatives Instruments Gain (Loss) in Income Statement (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Trading Activity, Gains and Losses, Net [Line Items]
Brokerage and Trading Revenue		$ 94,332	$ 8,979	$ 31,004
Gain (Loss) on Derivatives, Net		(73,011)	(19,378)	42,320
Interest rate contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Brokerage and Trading Revenue		10,690	5,503	4,507
Gain (Loss) on Derivatives, Net		0	0	0
Energy contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Brokerage and Trading Revenue		34,435	14,190	17,287
Gain (Loss) on Derivatives, Net		0	0	0
Agricultural contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Brokerage and Trading Revenue		0	27	34
Gain (Loss) on Derivatives, Net		0	0	0
Foreign exchange contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Brokerage and Trading Revenue		591	712	921
Gain (Loss) on Derivatives, Net		0	0	0
Equity option contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Brokerage and Trading Revenue		0	0	0
Gain (Loss) on Derivatives, Net		0	0	0
Total customer risk management programs [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Brokerage and Trading Revenue		45,716	20,432	22,749
Gain (Loss) on Derivatives, Net		0	0	0
Trading [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Brokerage and Trading Revenue	[1]	48,616	(11,453)	8,255
Gain (Loss) on Derivatives, Net	[1]	0	0	0
Internal risk management programs [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Brokerage and Trading Revenue		0	0	0
Gain (Loss) on Derivatives, Net		$ (73,011)	$ (19,378)	$ 42,320
[1] Includes changes in fair value of to-be-announced U.S. agency residential mortgage-backed securities and other derivative instruments offered to mortgage banking customers to manage their market risk or held to mitigate market risk of trading securities portfolio, which is offset by changes in fair value of trading securities also included in Brokerage and trading revenue in the Consolidated Statement of Earnings.

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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