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Federal Income Taxes - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Income Tax Disclosure [Abstract] |  |
Minimum distribution percentage of annual taxable income to qualify as REIT | 90.00% |
Maximum percentage of total assets consisting of securities of TRS | 20.00% |
Deferred tax assets, net | $ 0.0 | $ 0.9
Deferred tax assets, applicable reserves | 2.6 | 1.7
Deferred tax assets, capital loss carryforwards | 0.1 | 0.1
Deferred tax assets, operating loss carryforwards | $ 2.5 | $ 2.5
Minimum percentage of unrealized deferred tax asset required for qualification of valuation allowance | 50.00% |
Deferred tax assets valuation allowance | $ 0.9 |

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