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Related Parties - Additional Information (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Related Party Transaction [Line Items] |  |  |
Fee and other income | $ 13,763,000 | $ 8,020,000 |
Accounts and other receivables | 11,678,000 |  | $ 15,582,000
Property management, asset management, leasing and other related services fee income | 11,988,000 | 6,670,000 |
Accounts payable and accrued expenses | 111,171,000 |  | 116,192,000
Due from affiliates | $ 49,316,000 |  |
712 Fifth Avenue [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Equity method paramount ownership percentage | 50.00% |  |
CNBB-RDF Holdings Otto Family [Member] | Management Agreements [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Fee and other income | $ 489,000 | 517,000 |
Accounts and other receivables | 752,000 |  | 484,000
Unconsolidated Joint Ventures and Real Estate Funds [Member] | Management Agreements [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Accounts and other receivables | 2,868,000 |  | 2,883,000
Property management, asset management, leasing and other related services fee income | $ 10,783,000 | 5,586,000 |
Hamburg Trust Consulting GMBH ("HTC") [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Mark-up cost percentage | 10.00% |  |
Transaction related costs | $ 389,000 | 122,000 |
Accounts payable and accrued expenses | $ 389,000 |  | $ 523,000
Hamburg Trust Consulting GMBH ("HTC") [Member] | Chairman, Chief Executive Officer and President [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Percentage of ownership | 100.00% |  |
Mannheim Trust [Member] | Board of Director [Member] | 712 Fifth Avenue [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Equity method paramount ownership percentage | 50.00% |  |
Lease rental income | $ 91,000 | $ 91,000 |
Fund X [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Due from affiliates | $ 49,316,000 |  |
Fund X [Member] | Secured Overnight Financing Rate (SOFR) [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Fixed/Variable Rate | 2.20% |  |

X
- Definition Reflects the revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations. Additionally, reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. + References No definition available. + Details
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