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Investments In Securities and Fair Value (Schedule of Variable Interest Entities) (Details) - Other investments $ in Thousands	Sep. 30, 2023 USD ($)
Variable Interest Entity, Not Primary Beneficiary [Line Items]
Carrying Value	$ 13,644
Estimated Fair Value	15,676
Maximum Potential Loss (a)	18,738
Real Estate LLCs or LPs
Variable Interest Entity, Not Primary Beneficiary [Line Items]
Carrying Value	4,346
Estimated Fair Value	4,762
Maximum Potential Loss (a)	5,658
Small Business Investment LPs
Variable Interest Entity, Not Primary Beneficiary [Line Items]
Carrying Value	9,298
Estimated Fair Value	10,914
Maximum Potential Loss (a)	$ 13,080

X

- Definition

Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary

+ References

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- Definition

Estimated fair value amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary.

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- Definition

The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

+ References

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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.

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