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Related Party Transactions - Other Related Party Transactions (Details) ft² in Thousands |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 20, 2023 USD ($) | Nov. 30, 2018 USD ($) | Jan. 31, 2022 USD ($) ft² | Feb. 28, 2019 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Dec. 31, 2023 USD ($) | Jan. 12, 2024 | Mar. 10, 2022 USD ($) | Mar. 16, 2020 USD ($) | Feb. 26, 2020 USD ($) | Nov. 28, 2018 USD ($)
Related Party Transaction |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum amount per loan |  |  |  | $ 100,000,000 |  |  |  |  |  |  |  |  |
Limit on loans that have not yet been acquired or sold |  |  |  | 250,000,000 |  |  |  |  |  |  |  |  |
Limit on loans outstanding |  |  |  | $ 250,000,000 |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  | $ 745,161,000 |  | $ 547,260,000 |  |  |  |  |
Due from related party, percentage from sale |  |  |  |  |  | 10.00% |  |  |  |  |  |  |
Annual compensation |  |  |  |  |  |  |  | 400,000 |  |  |  |  |
Unsecured Debt | $7.500% Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  |  | 7.50% |  |  |  |
Revolving Credit Facility | Line of Credit |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum revolving credit |  |  |  |  |  |  |  |  |  | $ 600,000,000 | $ 465,000,000.0 | $ 425,000,000.0 | $ 250,000,000.0
Revolving Credit Facility | Line of Credit | Cantor Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum revolving credit | $ 150,000,000 | $ 250,000,000 |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.00% |  |  |  |  |  |  |  |  |  |  |
Borrowings of long-term debt | 130,000,000 |  |  |  |  | $ 130,000,000 |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  | 0 |  | 130,000,000.0 |  |  |  |  |
Related Party |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |  |  |  |  |  |  |  |
Payables to related parties |  |  |  |  |  | 6,700,000 |  | $ 6,600,000 |  |  |  |  |
Operating lease, lease income, lease payments |  |  |  |  | $ 200,000 |  | $ 500,000 |  |  |  |  |  |
Related Party | Cantor |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |  |  |  |  |  |  |  |
Lease, term of contract (in years) |  |  | 6 months |  |  |  |  |  |  |  |  |  |
Net rentable area | ft² |  |  | 21 |  |  |  |  |  |  |  |  |  |
Monthly payment on sublease |  |  | $ 81,600 |  |  |  |  |  |  |  |  |  |
Lessor, operating lease, renewal term |  |  |  |  | 3 months |  | 3 months |  |  |  |  |  |
Related Party | Unsecured Debt | $7.500% Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  |  | 7.50% |  |  |  |
Related Party | Cantor Credit Agreement | Line of Credit |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum revolving credit |  | $ 250,000,000 |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.00% |  |  |  |  |  |  |  |  |  |  |
Related Party | Revolving Credit Facility | Line of Credit | Cantor Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings of long-term debt | $ 130,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  | $ 0 |  |  |  |  |  |  |

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