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Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Significant Accounting Policies |  |
Fair value of assets acquired at consolidation of VIE | ​
​ | ​ | ​
(in thousands) | ​ | ​
​ | ​ | ​
Real estate assets | $ | 19,695
Value of acquired real estate leases | ​ | 305
Total | $ | 20,000
Quantitative information about significant unobservable inputs of Level 3 measurement |  | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Fair Value (1) at |  | ​ |  | Significant |  | Range | ​ | Weighted
Description | ​ | December 31, 2022 | ​ | Valuation Technique | ​ | Unobservable Input | ​ | Min | ​ | Max |  | Average (2)
​ | ​ | ​ | (in thousands) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Sponsored REIT Loan | ​ | $ | 19,763 |  | Discounted Cash Flows | ​ | Exit Cap Rate |  | 7.50 | % | ​ | 7.50 | % | ​ | 7.50 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | Discount Rate | ​ | 9.50 | % | ​ | 9.50 | % | ​ | 9.50 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(1) Classified within Level 3 of the fair value hierarchy. | ​
(2) Unobservable inputs were weighted based on the fair value of the related instrument. | ​
​
Schedule of estimated useful lives of real estate assets | ​
​ | ​ | ​ | ​ | ​ | ​
Category |  | Years |
Commercial buildings |  | ​ | 39 | ​ | ​
Building improvements |  | 15 | - | 39 | ​
Fixtures and equipment |  | 3 | - | 7 | ​
Schedule of estimated annual amortization expense for succeeding five years for acquired in-place lease and above-market leases | ​
​ | ​ | ​ | ​ | ​
(in thousands) |  | December 31, |
2024 | ​ | $ | 2,489 | ​
2025 | ​ |  | 1,718 | ​
2026 | ​ |  | 1,644 | ​
2027 | ​ |  | 389 | ​
2028 | ​ |  | 300 | ​
2029 and thereafter | ​ |  | 154 | ​
Schedule of estimated annual amortization for unfavorable leases | ​
​ | ​ | ​ | ​ | ​
(in thousands) |  | December 31, |
2024 | ​ | $ | 42 | ​
2025 | ​ |  | 10 | ​
2026 | ​ |  | 8 | ​
2027 | ​ |  | 8 | ​
2028 | ​ |  | 6 | ​
2029 and thereafter | ​ |  | 13 | ​
Schedule of Cash and cash equivalents | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | December 31,
(in thousands) | ​ | 2023 | ​ | 2022
Cash and cash equivalents (1) | ​ | $ | 125,530 | ​ | $ | 3,739
Restricted cash | ​ |  | 2,350 | ​ |  | 2,893
Total cash, cash equivalents and restricted cash | ​ | $ | 127,880 | ​ | $ | 6,632
​ | ​ | ​ | ​ | ​ | ​ | ​
(1) Includes $2,167 at December 31, 2023, pertaining to Monument Circle, which the Company is unable to utilize for its own operational purposes. | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of estimated annual amortization for deferred leasing commissions | ​
​ | ​ | ​ | ​ | ​
(in thousands) |  | December 31, |
2024 |  | $ | 4,466 | ​
2025 |  |  | 3,914 | ​
2026 |  |  | 3,285 | ​
2027 |  |  | 2,883 | ​
2028 |  |  | 2,426 | ​
2029 and thereafter |  |  | 6,690 | ​
Summary of rental revenue | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended |
​ | ​ | December 31, |
(in thousands) |  | 2023 |  | 2022 |  | 2021 |
Income from leases | ​ | $ | 103,716 | ​ | $ | 107,990 | ​ | $ | 148,705 | ​
Reimbursable expenses | ​ |  | 42,311 | ​ |  | 49,736 | ​ |  | 54,825 | ​
Straight-line rent adjustment | ​ |  | (626) | ​ |  | 5,895 | ​ |  | 4,017 | ​
Amortization of favorable and unfavorable leases | ​ |  | 45 | ​ |  | 118 | ​ |  | 34 | ​
​ | ​ | $ | 145,446 | ​ | $ | 163,739 | ​ | $ | 207,581 | ​

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- Definition Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481203/810-10-50-3 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481203/810-10-50-5A Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481203/810-10-50-9 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481203/810-10-50-4 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481203/810-10-50-6 + Details
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