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Related Parties - Additional Information (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2024
USD ($)
ft²
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
ft²
Jun. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Related Party Transaction [Line Items]          
Fee and other income $ 7,730,000 $ 7,156,000 $ 16,884,000 $ 13,917,000  
Accounts and other receivables 13,917,000   13,917,000   $ 18,053,000
Fee income 4,304,000 4,976,000 10,552,000 9,533,000  
Transaction related costs 423,000 63,000 601,000 191,000  
Accounts payable and accrued expenses $ 110,789,000   $ 110,789,000   114,463,000
Area of leased properties | ft² 13,800,000   13,800,000    
Rental revenue $ 179,678,000 165,506,000 $ 359,401,000 347,219,000  
712 Fifth Avenue [Member]          
Related Party Transaction [Line Items]          
Equity method paramount ownership percentage 50.00%   50.00%    
CNBB-RDF Holdings Otto Family [Member] | Management Agreements [Member]          
Related Party Transaction [Line Items]          
Fee and other income $ 190,000 266,000 $ 367,000 529,000  
Accounts and other receivables 39,000   39,000   40,000
Unconsolidated Joint Ventures and Real Estate Funds [Member] | Management Agreements [Member]          
Related Party Transaction [Line Items]          
Accounts and other receivables 1,717,000   1,717,000   2,552,000
Fee income $ 3,447,000 4,050,000 $ 8,810,000 7,703,000  
Hamburg Trust Consulting GMBH ("HTC") [Member]          
Related Party Transaction [Line Items]          
Mark-up cost percentage 10.00%   10.00%    
Transaction related costs $ 122,000 63,000 $ 245,000 191,000  
Accounts payable and accrued expenses $ 110,000   $ 110,000   $ 102,000
Hamburg Trust Consulting GMBH ("HTC") [Member] | Chairman, Chief Executive Officer and President [Member]          
Related Party Transaction [Line Items]          
Percentage of ownership 100.00%   100.00%    
Mannheim Trust [Member] | Board of Director [Member] | 712 Fifth Avenue [Member]          
Related Party Transaction [Line Items]          
Lease rental income $ 29,000 31,000 $ 59,000 124,000  
Mannheim Trust [Member] | Board of Director [Member] | 712 Fifth Avenue [Member] | Lease expiring in June 2025 [Member]          
Related Party Transaction [Line Items]          
Area of leased properties | ft² 3,127   3,127    
Equity method paramount ownership percentage 50.00%   50.00%    
ParkProperty Capital LP [Member] | Board of Director [Member]          
Related Party Transaction [Line Items]          
Rental revenue $ 70,000 69,000 $ 141,000 138,000  
ParkProperty Capital LP [Member] | Board of Director [Member] | 1325 Avenue of the Americas [Member]          
Related Party Transaction [Line Items]          
Area of leased properties | ft² 4,233   4,233    
Kramer Design Services [Member]          
Related Party Transaction [Line Items]          
Business development costs incurred $ 17,000 $ 84,000 $ 42,000 $ 84,000  
Kramer Design Services [Member] | Chairman, Chief Executive Officer and President [Member]          
Related Party Transaction [Line Items]          
Percentage of ownership 100.00%   100.00%