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Related Parties - Additional Information (Details)
12 Months Ended
Dec. 31, 2023
USD ($)
ft²
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Related Party Transaction [Line Items]      
Fee and other income $ 31,318,000 $ 37,558,000 $ 36,368,000
Accounts and other receivables 18,053,000 23,866,000  
Fee income 21,597,000 28,421,000 28,473,000
Transaction related costs 422,000 470,000 916,000
Accounts payable and accrued expenses $ 114,463,000 123,176,000  
Area of leased properties | ft² 13,800,000    
Rental revenue $ 711,470,000 702,819,000 690,418,000
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 $ 1,042,000 1,322,000 1,726,000
Accounts and other receivables 40,000 52,000  
Unconsolidated Joint Ventures and Real Estate Funds [Member] | Management Agreements [Member]      
Related Party Transaction [Line Items]      
Accounts and other receivables 2,552,000 3,032,000  
Fee income $ 16,567,000 24,315,000 23,240,000
Hamburg Trust Consulting GMBH ("HTC") [Member]      
Related Party Transaction [Line Items]      
Mark-up cost percentage 10.00%    
Transaction related costs $ 392,000 713,000 645,000
Accounts payable and accrued expenses $ 102,000 119,000  
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]      
Lease rental income $ 183,000 364,000 362,000
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    
Equity method paramount ownership percentage 50.00%    
Kramer Design Services [Member]      
Related Party Transaction [Line Items]      
Business development costs incurred $ 165,000    
Kramer Design Services [Member] | Chairman, Chief Executive Officer and President [Member]      
Related Party Transaction [Line Items]      
Percentage of ownership 100.00%    
ParkProperty Capital, LP [Member] | Board of Director [Member]      
Related Party Transaction [Line Items]      
Rental revenue $ 276,000 $ 220,000 $ 212,000
ParkProperty Capital, LP [Member] | Board of Director [Member] | 1633 Broadway [Member]      
Related Party Transaction [Line Items]      
Area of leased properties | ft² 3,330    
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    
Lease term 5 years