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Revenue Recognition (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Revenue Recognition (Details) [Line Items] |  |  |  |
Aggregate unrealized loss on portfolio |  |  | $ 2,400,000 |
Gross revenue from stock borrow/ Stock loan | $ 4,513,000 | $ 4,148,000 | 7,955,000 | $ 7,726,000
Maximum [Member] |  |  |  |
Revenue Recognition (Details) [Line Items] |  |  |  |
Expenses from stock borrow/stock loan | 11,524,000 | 8,836,000 | 21,300,000 | 16,301,000
Minimum [Member] |  |  |  |
Revenue Recognition (Details) [Line Items] |  |  |  |
Expenses from stock borrow/stock loan | $ 7,011,000 | $ 4,688,000 | $ 13,345,000 | $ 8,575,000

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