Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Tax Abatement Agreements) (Details)

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Commitments And Contingencies (Tax Abatement Agreements) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Commitments And Contingencies [Line Items]    
Payments in lieu of property taxes (PILOT) $ 3,176 $ 3,511
BLVD 475 N/S [Member]    
Commitments And Contingencies [Line Items]    
Payments in lieu of property taxes (PILOT)   474
Percentage of PILOT on gross revenues 10.00%  
111 River Realty [Member]    
Commitments And Contingencies [Line Items]    
Payments in lieu of property taxes (PILOT) $ 85 370
Harborside Financial Center Plaza 4A [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on project costs 2.00%  
Total project costs $ 49,500  
Payments in lieu of property taxes (PILOT) $ 218 264
Harborside Financial Center Plaza 5 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on project costs 2.00%  
Total project costs $ 170,900  
Payments in lieu of property taxes (PILOT) 1,109 1,080
BLVD 401 [Member]    
Commitments And Contingencies [Line Items]    
Payments in lieu of property taxes (PILOT) $ 359 260
BLVD 401 [Member] | Years 1-4 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 10.00%  
BLVD 401 [Member] | Years 5-8 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 12.00%  
BLVD 401 [Member] | Years 9-10 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 14.00%  
Riverhouse 11 at Port Imperial [Member]    
Commitments And Contingencies [Line Items]    
Payments in lieu of property taxes (PILOT) $ 350 326
Riverhouse 11 at Port Imperial [Member] | Years 1-5 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 12.00%  
Riverhouse 11 at Port Imperial [Member] | Years 6-10 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 13.00%  
Riverhouse 11 at Port Imperial [Member] | Years 11-15 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 14.00%  
Port Imperial South 4/5 Garage [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on project costs 2.00%  
Payments in lieu of property taxes (PILOT) $ 733 $ 737
Riverhouse 9 At Port Imperia [Member]    
Commitments And Contingencies [Line Items]    
Payments in lieu of property taxes (PILOT) $ 322  
Riverhouse 9 At Port Imperia [Member] | Years 1-10 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 11.00%  
Riverhouse 9 At Port Imperia [Member] | Years 11-18 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 12.50%  
Riverhouse 9 At Port Imperia [Member] | Years 19-25 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 14.00%  
Haus 25 [Member]    
Commitments And Contingencies [Line Items]    
Project period 25 years  
Percentage of PILOT on gross revenues 7.00%  
Park Apartments at Port Imperial [Member]    
Commitments And Contingencies [Line Items]    
Project period 25 years  
Park Apartments at Port Imperial [Member] | Years 1-10 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 11.00%  
Park Apartments at Port Imperial [Member] | Years 11-18 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 12.50%  
Park Apartments at Port Imperial [Member] | Years 19-25 [Member]    
Commitments And Contingencies [Line Items]    
Percentage of PILOT on gross revenues 14.00%