Recent Transactions (Schedule Of Acquisition Cost Allocated To Net Assets Acquired) (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2019
USD ($)
Business Acquisition [Line Items]  
Land and leasehold interest $ 36,862
Buildings and improvements and other assets 277,239
Above market lease values 431
In-place lease values 13,744
Sub Total 328,276
Less: Below market lease values (1,840)
Net assets 326,436
99 Wood Avenue [Member]  
Business Acquisition [Line Items]  
Land and leasehold interest 9,261
Buildings and improvements and other assets 45,576
Above market lease values 431
In-place lease values 8,264
Sub Total 63,532
Less: Below market lease values (1,674)
Net assets $ 61,858
99 Wood Avenue [Member] | Above Market, In-Place And Below Market Leases [Member]  
Business Acquisition [Line Items]  
Amortization period 4 years 3 months 18 days
Soho Lofts Apartments [Member]  
Business Acquisition [Line Items]  
Land and leasehold interest $ 27,601
Buildings and improvements and other assets 231,663
In-place lease values 5,480
Sub Total 264,744
Less: Below market lease values (166)
Net assets $ 264,578
Soho Lofts Apartments [Member] | In-Place And Below Market Leases [Member]  
Business Acquisition [Line Items]  
Amortization period 9 months 18 days