The period of foreign currency forward contract term, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

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- Definition

Nominal or face amount used to calculate payments on the derivative asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The net gain on trading activities (including both derivative and nonderivative instruments) recognized in the statement of financial performance.

+ References

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details Textual) - Foreign Exchange Contracts [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Xe Operations [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 1,000.0		$ 1,000.0		$ 1,000.0
United States of America, Dollars \| Ria Operations [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	426.0		426.0		398.6
Euro Member Countries, Euro \| Ria Operations [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	325.5		$ 325.5		$ 228.4
Maximum [Member] \| Ria Operations [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign currency forward contract term			14 days
Trading Revenue [Member] \| Xe Operations [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign currency exchange margin	$ 22.2	$ 22.3	$ 63.8	$ 66.5