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Deferred Expenses and Other Assets, Net and Accounts Payable, Accrued Expenses and Other Liabilities - Schedule of Other Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2024 | Dec. 31, 2023
Deferred expenses and other assets |  |  |  |  |
Operating lease, right-of-use asset |  | $ 32,929 |  | $ 32,929 | $ 33,964
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] |  | Deferred expenses and other assets, net |  | Deferred expenses and other assets, net | Deferred expenses and other assets, net
Interest rate hedge assets |  | $ 49,036 |  | $ 49,036 | $ 34,864
Deferred finance costs, net |  | 4,078 |  | 4,078 | 3,692
Other assets |  | 35,418 |  | 35,418 | 13,210
Purchase deposits |  | 2,090 |  | 2,090 | 2,090
Leasing costs, net |  | 437 |  | 437 | 439
Corporate furniture, fixtures and equipment, net |  | 889 |  | 889 | 979
Deferred expenses and other assets, net | [1],[2] | $ 124,877 |  | $ 124,877 | 89,238
Lease discount rate |  | 5.50% |  | 5.50% |
Accumulated amortization of deferred finance costs |  | $ 12,300 |  | $ 12,300 | 11,000
Cash posted as temporary replacement collateral in a pool that has asset substitution rights related to certain debt obligations. |  | 19,100 |  | 19,100 |
Below-market lease |  |  |  |  |
Deferred expenses and other assets |  |  |  |  |
Annual lease fee |  | 500 |  | 500 | 500
Real estate expense |  |  |  |  |
Deferred expenses and other assets |  |  |  |  |
Operating lease expense |  | 100 | $ 100 |  |
Other Income |  |  |  |  |
Deferred expenses and other assets |  |  |  |  |
Operating lease expense |  | 100 | $ 100 |  |
Related party |  |  |  |  |
Deferred expenses and other assets |  |  |  |  |
Deferred expenses and other assets, net |  | 6,600 |  | 6,600 | 7,100
Affiliated entity | Star Holdings |  |  |  |  |
Deferred expenses and other assets |  |  |  |  |
Management fees due from Star Holdings |  | 6,200 |  | 6,200 | $ 6,900
Management fees recorded |  | 5,500 |  | $ 24,900 |
Management fee performance obligations remaining |  | $ 25,100 |  |  |
[1] | As of March 31, 2024 and December 31, 2023, includes $6.6 million and $7.1 million, respectively, due from related parties.
[2] | Refer to Note 2 for details on the Company’s consolidated variable interest entities (“VIEs”).

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- 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 20 -Name Accounting Standards Codification -Section 25 -Paragraph 16 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481178/840-20-25-16 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 20 -Name Accounting Standards Codification -Section 35 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481123/840-20-35-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 25 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479341/842-30-25-10 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 20 -Name Accounting Standards Codification -Section 25 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481178/840-20-25-17 + Details
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