v3.25.1
Related Parties - Additional Information (Details)
1 Months Ended 3 Months Ended
Feb. 28, 2025
USD ($)
Mar. 31, 2025
USD ($)
ft²
Mar. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
Related Party Transaction [Line Items]        
Fee and other income   $ 7,998,000 $ 9,154,000  
Accounts and other receivables   20,496,000   $ 18,229,000
Fee income   5,025,000 6,248,000  
Transaction related costs   150,000 178,000  
Accounts payable and accrued expenses   114,074,000   119,881,000
General and administrative   $ 17,461,000 16,634,000  
Area of leased properties | ft²   13,800,000    
Rental revenue   $ 179,021,000 179,723,000  
CNBB-RDF Holdings Otto Family [Member] | Management Agreements [Member]        
Related Party Transaction [Line Items]        
Fee and other income   147,000 177,000  
Accounts and other receivables   42,000   31,000
Unconsolidated Joint Ventures and Real Estate Funds [Member] | Management Agreements [Member]        
Related Party Transaction [Line Items]        
Accounts and other receivables   1,675,000   1,652,000
Fee income   $ 3,237,000 5,363,000  
Hamburg Trust Consulting GMBH ("HTC") [Member]        
Related Party Transaction [Line Items]        
Mark-up cost percentage   10.00%    
Transaction related costs   $ 120,000 123,000  
Accounts payable and accrued expenses   $ 109,000   $ 113,000
Hamburg Trust Consulting GMBH ("HTC") [Member] | Chairman, Chief Executive Officer and President [Member]        
Related Party Transaction [Line Items]        
Percentage of ownership   100.00%    
Aircraft Services [Member]        
Related Party Transaction [Line Items]        
General and administrative   $ 147,000 377,000  
Aircraft Services [Member] | Chairman, Chief Executive Officer and President [Member]        
Related Party Transaction [Line Items]        
Percentage of ownership   50.00%    
Mannheim Trust [Member] | Board of Director [Member] | 712 Fifth Avenue [Member]        
Related Party Transaction [Line Items]        
Lease rental income   $ 30,000 30,000  
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%    
ParkProperty Capital, LP [Member] | Board of Director [Member]        
Related Party Transaction [Line Items]        
Rental revenue   $ 71,000 71,000  
ParkProperty Capital, LP [Member] | Board of Director [Member] | 1325 Avenue of the Americas [Member] | Lease expiring in November 2027 [Member]        
Related Party Transaction [Line Items]        
Area of leased properties | ft²   4,233    
Kramer Design Services [Member]        
Related Party Transaction [Line Items]        
Transaction related costs $ 220,000      
Business development costs incurred   $ 39,000 $ 25,000  
Kramer Design Services [Member] | Chairman, Chief Executive Officer and President [Member]        
Related Party Transaction [Line Items]        
Percentage of ownership   100.00%