Annual report pursuant to Section 13 and 15(d)

Recent Transactions (Schedule Of Dispositions/Rental Property Held For Sale) (Details)

v3.8.0.1
Recent Transactions (Schedule Of Dispositions/Rental Property Held For Sale) (Details)
$ in Thousands
 12 Months Ended
Jan. 11, 2017
USD ($)
Dec. 31, 2017
USD ($)
ft²
item
Dec. 31, 2016
USD ($)
item
Dec. 31, 2015
USD ($)
Dec. 31, 2012
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
New mortgage loan   $ 44,695      
Mortgage loan carrying amount   $ 45,734      
Impairments       $ 197,919  
Disposal Group, Not Discontinued Operations [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   60 30    
Rentable Square Feet, Disposed | ft²   4,677,058      
Net Sales Proceeds   $ 399,332 $ 664,481    
Net Carrying Value   384,637 547,150    
Realized Gain (loss)/Unrealized Loss, net   14,695 117,331    
Unrealized losses on rental properties held for sale   (12,331) (7,665)    
Totals   $ 2,364 109,666    
Disposal Group, Not Discontinued Operations [Member] | Cranford Portfolio [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   6      
Rentable Square Feet, Disposed | ft²   435,976      
Net Sales Proceeds   $ 26,598      
Net Carrying Value   22,736      
Realized Gain (loss)/Unrealized Loss, net   $ 3,862      
Disposal Group, Not Discontinued Operations [Member] | 440 Route 22 East [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item [1]   1      
Rentable Square Feet, Disposed | ft² [1]   198,376      
Net Sales Proceeds [1]   $ 10,074      
Net Carrying Value [1]   10,069      
Realized Gain (loss)/Unrealized Loss, net [1]   $ 5      
Impairments     $ 7,700    
Disposal Group, Not Discontinued Operations [Member] | 3 Independence Way [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   1      
Rentable Square Feet, Disposed | ft²   111,300      
Net Sales Proceeds   $ 11,549      
Net Carrying Value   9,910      
Realized Gain (loss)/Unrealized Loss, net   $ 1,639      
Disposal Group, Not Discontinued Operations [Member] | 103 Carnegie Center [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   1      
Rentable Square Feet, Disposed | ft²   96,000      
Net Sales Proceeds   $ 15,063      
Net Carrying Value   8,271      
Realized Gain (loss)/Unrealized Loss, net   $ 6,792      
Disposal Group, Not Discontinued Operations [Member] | 400 Chestnut Ridge Road [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   1      
Rentable Square Feet, Disposed | ft²   89,200      
Net Sales Proceeds   $ 6,891      
Net Carrying Value   7,498      
Realized Gain (loss)/Unrealized Loss, net   $ (607)      
Disposal Group, Not Discontinued Operations [Member] | 140 East Ridgewood Avenue [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   1      
Rentable Square Feet, Disposed | ft²   239,680      
Net Sales Proceeds   $ 30,201      
Net Carrying Value   30,737      
Realized Gain (loss)/Unrealized Loss, net   $ (536)      
Disposal Group, Not Discontinued Operations [Member] | Bergen Portfolio [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   5      
Rentable Square Feet, Disposed | ft²   1,061,544      
Net Sales Proceeds [2]   $ 86,973      
Net Carrying Value   135,121      
Realized Gain (loss)/Unrealized Loss, net   (48,148)      
Disposal Group, Not Discontinued Operations [Member] | Bergen Portfolio [Member] | Buyer [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Notes receivable   $ 65,000      
Disposal Group, Not Discontinued Operations [Member] | 377 Summerhill Road [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   1      
Rentable Square Feet, Disposed | ft²   40,000      
Net Sales Proceeds   $ 3,221      
Net Carrying Value   2,172      
Realized Gain (loss)/Unrealized Loss, net   1,049      
Disposal Group, Not Discontinued Operations [Member] | 700 Executive Boulevard [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Net Sales Proceeds [3]   5,717      
Net Carrying Value [3]   970      
Realized Gain (loss)/Unrealized Loss, net [3]   $ 4,747      
Disposal Group, Not Discontinued Operations [Member] | Totowa Portfolio [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   13      
Rentable Square Feet, Disposed | ft²   499,243      
Net Sales Proceeds   $ 63,624      
Net Carrying Value   27,630      
Realized Gain (loss)/Unrealized Loss, net   $ 35,994      
Disposal Group, Not Discontinued Operations [Member] | 890 Mountain Avenue [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item [4]   1      
Rentable Square Feet, Disposed | ft² [4]   80,000      
Net Sales Proceeds [4]   $ 4,852      
Net Carrying Value [4]   6,139      
Realized Gain (loss)/Unrealized Loss, net [4]   $ (1,287)      
Impairments       7,000  
Disposal Group, Not Discontinued Operations [Member] | 135 Chestnut Ridge Road [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   1      
Rentable Square Feet, Disposed | ft²   66,150      
Net Sales Proceeds [5]   $ 5,844      
Net Carrying Value   2,929      
Realized Gain (loss)/Unrealized Loss, net   2,915      
Impairments       4,200  
Net sales proceeds held by qualified intermediary   $ 5,900      
Disposal Group, Not Discontinued Operations [Member] | Moorestown Portfolio [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   26      
Rentable Square Feet, Disposed | ft²   1,260,398      
Net Sales Proceeds [6]   $ 73,393      
Net Carrying Value   56,186      
Realized Gain (loss)/Unrealized Loss, net   17,207      
Net sales proceeds held by qualified intermediary   15,300      
Disposal Group, Not Discontinued Operations [Member] | 1 Enterprise Boulevard [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Net Sales Proceeds   3,230      
Net Carrying Value   1,380      
Realized Gain (loss)/Unrealized Loss, net   $ 1,850      
Disposal Group, Not Discontinued Operations [Member] | 61 South Paramus Road [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   1      
Rentable Square Feet, Disposed | ft²   269,191      
Net Sales Proceeds   $ 23,255      
Net Carrying Value   37,184      
Realized Gain (loss)/Unrealized Loss, net   $ (13,929)      
Disposal Group, Not Discontinued Operations [Member] | 300 Tice Boulevard [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item   1      
Rentable Square Feet, Disposed | ft²   230,000      
Net Sales Proceeds   $ 28,847      
Net Carrying Value   25,705      
Realized Gain (loss)/Unrealized Loss, net   $ 3,142      
Disposal Group, Not Discontinued Operations [Member] | 2 Independence Way [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item [7]     1    
Net Sales Proceeds [7]     $ 4,119    
Net Carrying Value [7]     4,283    
Realized Gain (loss)/Unrealized Loss, net [7]     $ (164)    
Impairments       3,200  
Disposal Group, Not Discontinued Operations [Member] | 1201 Connecticut Avenue, NW [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item     1    
Net Sales Proceeds     $ 90,591    
Net Carrying Value     31,827    
Realized Gain (loss)/Unrealized Loss, net     $ 58,764    
Disposal Group, Not Discontinued Operations [Member] | 125 Broad Street [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item [8]     1    
Net Sales Proceeds [8]     $ 192,323    
Net Carrying Value [8]     200,183    
Realized Gain (loss)/Unrealized Loss, net [8]     $ (7,860)    
Impairments       83,200  
Disposal Group, Not Discontinued Operations [Member] | 9200 Edmonston Road [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item     1    
Net Sales Proceeds [9]     $ 4,083    
Net Carrying Value     3,837    
Realized Gain (loss)/Unrealized Loss, net     $ 246    
Impairments         $ 3,000
Disposal Group, Not Discontinued Operations [Member] | 1400 L Street [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item     1    
Net Sales Proceeds     $ 68,399    
Net Carrying Value     30,053    
Realized Gain (loss)/Unrealized Loss, net     $ 38,346    
Disposal Group, Not Discontinued Operations [Member] | 600 Parsippany Road [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item     1    
Net Sales Proceeds [10]     $ 10,465    
Net Carrying Value     5,875    
Realized Gain (loss)/Unrealized Loss, net     $ 4,590    
Net sales proceeds held by qualified intermediary $ 10,500        
Disposal Group, Not Discontinued Operations [Member] | 4, 5, 6 Century Drive [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item [11]     3    
Net Sales Proceeds [11]     $ 14,533    
Net Carrying Value [11]     17,308    
Realized Gain (loss)/Unrealized Loss, net [11]     $ (2,775)    
Impairments       9,800  
Disposal Group, Not Discontinued Operations [Member] | Andover Place [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item     1    
Net Sales Proceeds     $ 39,863    
Net Carrying Value     37,150    
Realized Gain (loss)/Unrealized Loss, net     $ 2,713    
Disposal Group, Not Discontinued Operations [Member] | 222, 233 Mount Airy Road [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item [12]     2    
Net Sales Proceeds [12]     $ 8,817    
Net Carrying Value [12]     9,039    
Realized Gain (loss)/Unrealized Loss, net [12]     $ (222)    
Impairments       1,000  
Disposal Group, Not Discontinued Operations [Member] | 10 Mountainview Road [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item     1    
Net Sales Proceeds     $ 18,990    
Net Carrying Value     19,571    
Realized Gain (loss)/Unrealized Loss, net     $ (581)    
Disposal Group, Not Discontinued Operations [Member] | 100 Willowbrook, 2, 3, 4 Paragon [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item [13]     4    
Net Sales Proceeds [13]     $ 14,634    
Net Carrying Value [13]     19,377    
Realized Gain (loss)/Unrealized Loss, net [13]     $ (4,743)    
Impairments       7,400  
Disposal Group, Not Discontinued Operations [Member] | 4 Becker Farm Road [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item     1    
Net Sales Proceeds [14]     $ 41,400    
Net Carrying Value     31,001    
Realized Gain (loss)/Unrealized Loss, net     $ 10,399    
Disposal Group, Not Discontinued Operations [Member] | 101, 103, 105 Eisenhower Parkway [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item     3    
Net Sales Proceeds     $ 46,423    
Net Carrying Value     45,999    
Realized Gain (loss)/Unrealized Loss, net     $ 424    
Disposal Group, Not Discontinued Operations [Member] | Capital Office Park, Ivy Lane [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item [15]     6    
Net Sales Proceeds [15]     $ 46,570    
Net Carrying Value [15]     65,064    
Realized Gain (loss)/Unrealized Loss, net [15]     $ (18,494)    
Impairments       66,500  
Disposal Group, Not Discontinued Operations [Member] | 100 Walnut Avenue [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item     1    
Net Sales Proceeds     $ 28,428    
Net Carrying Value     7,529    
Realized Gain (loss)/Unrealized Loss, net     $ 20,899    
Disposal Group, Not Discontinued Operations [Member] | 20 Commerce Drive [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item     1    
Net Sales Proceeds     $ 28,878    
Net Carrying Value     13,071    
Realized Gain (loss)/Unrealized Loss, net     $ 15,807    
Disposal Group, Not Discontinued Operations [Member] | 4200 Parliament Place [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of Buildings, Disposed | item [16]     1    
Net Sales Proceeds [16]     $ 5,965    
Net Carrying Value [16]     5,983    
Realized Gain (loss)/Unrealized Loss, net [16]     $ (18)    
Impairments       $ 4,200  
[1] The Company recorded a valuation allowance of $7.7 million on this property during the year ended December 31, 2016.
[2] At closing, the Company provided short term seller financing aggregating $65 million through mortgage notes receivable to the buyers. These notes were paid off in November and December 2017.
[3] This disposition is of a ground leased land property.
[4] The Company recorded an impairment charge of $7.0 million on this property during the year ended December 31, 2015.
[5] The Company recorded an impairment charge of $4.2 million on this property during the year ended December 31, 2015. $5.9 million of the sales proceeds from this sale were held by a qualified intermediary, which is noncash and recorded in deferred charges, goodwill and other assets as of December 31, 2017. See Note 5: Deferred Charges, Goodwill and Other Assets, Net.
[6] $15.3 million of the sales proceeds from this sale were held by a qualified intermediary, which is noncash and recorded in deferred charges, goodwill and other assets as of December 31, 2017. See Note 5: Deferred Charges, Goodwill and Other Assets, Net.
[7] The Company recorded an impairment charge of $3.2 million on this property during the year ended December 31, 2015.
[8] The Company recorded impairment charges of $83.2 million on this property during the year ended December 31, 2015.
[9] The Company transferred the deed for this property to the lender in satisfaction of its obligations. The Company recorded an impairment charge of $3.0 million on this property during the year ended December 31, 2012.
[10] $10.5 million of the net sales proceeds from this sale were held by a qualified intermediary. The Company received these proceeds on January 11, 2017.
[11] The Company recorded impairment charges of $9.8 million on these properties during the year ended December 31, 2015.
[12] The Company recorded impairment charges of $1.0 million on these properties during the year ended December 31, 2015.
[13] The Company recorded impairment charges of $7.4 million on these properties during the year ended December 31, 2015.
[14] The Company transferred the deed for this property to the lender in satisfaction of its obligations.
[15] The Company recorded impairment charges of $66.5 million on these properties during the year ended December 31, 2015.
[16] The Company recorded an impairment charge of $4.2 million on this property during the year ended December 31, 2015.