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Other Assets and Other Liabilities (Deferred Expenses and Other Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Real Estate Properties [Line Items] |  |  |  |
Intangible assets, net |  | $ 319 | $ 1,209 |
Restricted cash |  | 6,423 | 54,395 |
Operating lease right-of-use assets |  | 16,110 | 20,437 |
Other assets |  | 19,009 | 16,040 |
Other receivables |  | 2,845 | 5,054 |
Leasing costs, net |  | 129 | 818 |
Corporate furniture, fixtures and equipment, net |  | 1,441 | 1,852 |
Deferred financing fees, net |  |  | 629 |
Deferred expenses and other assets, net | [1] | 46,276 | 100,434 |
Intangible assets, accumulated amortization |  | 100 | 10,200 |
Amortization of above market lease |  | 100 | 300 | $ 200
Amortization of intangible assets |  | $ 100 | 1,000 | 200
Weighted average amortization period |  | 5 years 9 months 18 days |  |
Operating lease, expense |  | $ 5,200 | 5,200 | 5,400
Accumulated amortization on leasing costs |  | 100 | 1,100 |
Accumulated depreciation on corporate furniture, fixtures and equipment |  | $ 12,300 | $ 14,800 |
Operating Lease, Right-of-Use Asset, Statement of Financial Position |  | Deferred expenses and other assets, net | Deferred expenses and other assets, net |
General and Administrative |  |  |  |
Real Estate Properties [Line Items] |  |  |  |
Operating lease, expense |  | $ 4,800 | $ 4,900 | 4,700
Real Estate Expense |  |  |  |
Real Estate Properties [Line Items] |  |  |  |
Operating lease, expense |  | $ 700 | $ 600 | $ 600
[1] | Refer to Note 2 for details on the Company’s consolidated variable interest entities (“VIEs”). Certain items have been reclassified to “Real estate and other assets available and held for sale and classified as discontinued operations” and “Liabilities associated with real estate held for sale and classified as discontinued operations” (refer to Note 3).

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- Definition The cumulative amount of depreciation, related to leasehold improvements, corporate furniture, fixtures and equipment that has been recognized in the income statement. + References No definition available. + Details
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- Definition Amortization of Above Market Lease and Lease Incentive Asset + References No definition available. + Details
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- Definition Net amount, at the balance sheet date, of long-lived, depreciable assets commonly used in offices that are additions or improvements to assets held under lease arrangement. + References No definition available. + Details
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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition For an unclassified balance sheet, the accumulated amortization, as of the reporting date, which represents the periodic charge to earnings of initial direct costs which have been deferred and are being allocated over the lease term in proportion to the recognition of rental income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 25 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123408481&loc=SL77919138-209958 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 16 -URI https://asc.fasb.org/extlink&oid=123394419&loc=d3e40588-112709 Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 35 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123394697&loc=d3e40879-112712 + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 16 -URI https://asc.fasb.org/extlink&oid=123394419&loc=d3e40588-112709 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123394419&loc=d3e40246-112709 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 25 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123408481&loc=SL77919138-209958 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 35 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123394697&loc=d3e40879-112712 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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