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Investments In Securities and Fair Value (Schedule of Variable Interest Entities) (Details) - Other investments $ in Thousands | Mar. 31, 2023 USD ($)
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Variable Interest Entity, Not Primary Beneficiary [Line Items] |
Carrying Value | $ 12,481
Estimated Fair Value | 13,716
Maximum Potential Loss (a) | 19,638
Real Estate LLCs or LPs |
Variable Interest Entity, Not Primary Beneficiary [Line Items] |
Carrying Value | 3,862
Estimated Fair Value | 5,316
Maximum Potential Loss (a) | 5,658
Small Business Investment LPs |
Variable Interest Entity, Not Primary Beneficiary [Line Items] |
Carrying Value | 8,619
Estimated Fair Value | 8,400
Maximum Potential Loss (a) | $ 13,980

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