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Investments In Securities and Fair Value (Schedule of Variable Interest Entities) (Details) - Other investments $ in Thousands | Sep. 30, 2025 USD ($)
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Variable Interest Entity, Not Primary Beneficiary [Line Items] |
Carrying Value | $ 13,895
Estimated Fair Value | 15,542
Maximum Potential Loss (a) | 16,592
Real estate LLCs or LPs |
Variable Interest Entity, Not Primary Beneficiary [Line Items] |
Carrying Value | 13,273
Estimated Fair Value | 14,920
Maximum Potential Loss (a) | 16,592
Small business investment LPs |
Variable Interest Entity, Not Primary Beneficiary [Line Items] |
Carrying Value | 622
Estimated Fair Value | 622
Maximum Potential Loss (a) | $ 0

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