Deferred Expenses and Other Assets, Net and Accounts Payable, Accrued Expenses and Other Liabilities - Schedule of Other Assets (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Deferred expenses and other assets | ||||||||
| Operating lease right-of-use asset | $ 31,929,000 | $ 26,085,000 | ||||||
| Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Deferred expenses and other assets, net | Deferred expenses and other assets, net | ||||||
| Interest rate hedge assets | $ 16,547,000 | $ 21,315,000 | ||||||
| Deferred finance costs, net | 7,846,000 | 11,536,000 | ||||||
| Other assets | 27,386,000 | 12,211,000 | ||||||
| Leasing costs, net | 416,000 | 422,000 | ||||||
| Corporate furniture, fixtures and equipment, net | 1,357,000 | 461,000 | ||||||
| Deferred expenses and other assets, net | [1],[2] | $ 85,481,000 | 72,030,000 | |||||
| Lease discount rate | 5.50% | |||||||
| Accumulated amortization of deferred finance costs | $ 12,200,000 | 8,400,000 | ||||||
| Below-market lease | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Annual lease fee | 500,000 | 500,000 | ||||||
| Real estate expense | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Operating lease expense | $ 100,000 | $ 400,000 | ||||||
| Other Income | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Operating lease expense | $ 100,000 | $ 400,000 | ||||||
| Related party | ||||||||
| Deferred expenses and other assets | ||||||||
| Deferred expenses and other assets, net | 4,600,000 | 3,000,000 | ||||||
| Affiliated entity | Star Holdings | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Management fees due from Star Holdings | $ 1,900,000 | $ 2,900,000 | ||||||
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| X | ||||||||||
- Definition Annual Lease Fee No definition available.
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| X | ||||||||||
- Definition N/A No definition available.
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| X | ||||||||||
- Definition The amount due for management services provided but not yet paid. No definition available.
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| X | ||||||||||
- Definition Amount of accumulated amortization of debt issuance costs classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of deferred cost assets and assets classified as other. No definition available.
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| X | ||||||||||
- Definition This element represents costs incurred by the lessor that are (a) costs to originate a lease incurred in transactions with independent third parties that (i) result directly from and are essential to acquire that lease and (ii) would not have been incurred had that leasing transaction not occurred and (b) certain costs directly related to specified activities performed by the lessor for that lease. Those activities are: evaluating the prospective lessee's financial condition; evaluating and recording guarantees, collateral, and other security arrangements; negotiating lease terms; preparing and processing lease documents; and closing the transaction. This element is net of accumulated amortization. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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| X | ||||||||||
- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Discount rate used by lessee to determine present value of operating lease payments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of operating lease expense. Excludes sublease income. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Indicates line item in statement of financial position that includes operating lease right-of-use asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Net amount of other deferred costs capitalized at the end of the reporting period. Does not include deferred finance costs or deferred acquisition costs of insurance companies. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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