Quarterly report pursuant to Section 13 or 15(d)

Recent Transactions (Schedule Of Disposed Properties) (Details)

v3.21.2
Recent Transactions (Schedule Of Disposed Properties) (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
ft²
Sep. 30, 2021
USD ($)
ft²
item
shares
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Unrealized gains (losses) on real estate held for sale   $ (3,485)
Totals   $ 521
100 Overlook Center [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Redemption of common units, shares | shares   678,302
Value of units redeemed   $ 10,500
Short Hills Portfolio [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Closing costs paid $ 22,600  
Disposal Group, Not Discontinued Operations [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Number of buildings | item   15
Rentable Square Feet | ft² 2,800,833 2,800,833
Net Sales Proceeds   $ 681,608
Net Carrying Value   652,572
Realized Gains (Losses)/Unrealized Losses, net   4,006
Realized Gains (losses)/Unrealized Losses, net   25,030
Unrealized gains (losses) on real estate held for sale   439
Totals   $ 25,469
Disposal Group, Not Discontinued Operations [Member] | 100 Overlook Center [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Number of buildings | item   1
Rentable Square Feet | ft² 149,600 149,600
Net Sales Proceeds   $ 34,724
Net Carrying Value   26,488
Realized Gains (losses)/Unrealized Losses, net   $ 8,236
Disposal Group, Not Discontinued Operations [Member] | Metropark Portfolio [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Number of buildings | item   4
Rentable Square Feet | ft² 926,656 926,656
Net Sales Proceeds   $ 247,351
Net Carrying Value   233,826
Realized Gains (losses)/Unrealized Losses, net   13,525
Notes receivable to an affiliate $ 10,000 $ 10,000
Disposal Group, Not Discontinued Operations [Member] | Short Hills Portfolio [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Number of buildings | item   4
Rentable Square Feet | ft² 828,413 828,413
Net Sales Proceeds   $ 248,664
Net Carrying Value   245,800
Realized Gains (losses)/Unrealized Losses, net   $ 2,864
Disposal Group, Not Discontinued Operations [Member] | Red Bank Portfolio [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Number of buildings | item   5
Rentable Square Feet | ft² 659,490 659,490
Net Sales Proceeds   $ 80,730
Net Carrying Value   78,364
Realized Gains (losses)/Unrealized Losses, net   2,366
Disposal Group, Not Discontinued Operations [Member] | Retail Land Leases [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Net Sales Proceeds   41,957
Net Carrying Value   37,951
Realized Gains (Losses)/Unrealized Losses, net   $ 4,006
Disposal Group, Not Discontinued Operations [Member] | 7 Giralda Farms [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Number of buildings | item   1
Rentable Square Feet | ft² 236,674 236,674
Net Sales Proceeds   $ 28,182
Net Carrying Value   30,143
Realized Gains (losses)/Unrealized Losses, net   $ (1,961)