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Organization, Basis of Presentation, and Significant Accounting Policies - Income Taxes and Deferred Financing Costs (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Accounting Policies [Abstract] |  |  |
Minimum distribution of adjusted taxable income for deducting dividends from federally taxable income (as a percent) | 90.00% |  |
Minimum distribution of REIT taxable income for federal income tax exemption (as a percent) | 100.00% |  |
Accounting Policies [Line Items] |  |  |
Income tax expense | $ 445,000 | $ 10,153,000 | $ 14,646,000
Unrecognized tax benefits | $ 0 | $ 0 |
Tax components of common stock dividends declared |  |  |
Capital gain tax rate (as a percent) | 20.00% | 20.00% | 20.00%
Ordinary income (as a percent) | 90.00% | 83.00% | 82.00%
20% capital gain (as a percent) | 4.00% | 11.00% | 15.00%
Unrecaptured 1250 gain (as a percent) | 6.00% | 6.00% | 3.00%
Total dividends (as a percent) | 100.00% | 100.00% | 100.00%
Unsecured notes |  |  |
Accounting Policies [Line Items] |  |  |
Accumulated amortization of deferred finance costs | $ 34,074,000 | $ 34,494,000 |
Secured notes |  |  |
Accounting Policies [Line Items] |  |  |
Accumulated amortization of deferred finance costs | 2,482,000 | 2,262,000 |
Variable rate unsecured credit facility |  |  |
Accounting Policies [Line Items] |  |  |
Accumulated amortization of deferred finance costs | $ 7,345,000 | $ 4,081,000 |

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