Annual report pursuant to Section 13 and 15(d)

Recent Transactions (Impairments On Properties Held And Used) (Narrative) (Details)

v3.20.4
Recent Transactions (Impairments On Properties Held And Used) (Narrative) (Details)
$ in Thousands
1 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2020
property
Sep. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
property
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Real Estate Properties [Line Items]          
Property impairments | $   $ 36,600 $ 36,582    
Land and other impairments | $     $ 16,817 $ 32,444 $ 24,566
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]          
Real Estate Properties [Line Items]          
Properties     6    
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Land Parcels [Member]          
Real Estate Properties [Line Items]          
Properties     3    
Land and other impairments | $     $ 7,300    
Disposal Group, Not Discontinued Operations [Member] | Hotel [Member]          
Real Estate Properties [Line Items]          
Number of properties closed 1        
Weehawken, New Jersey [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Hotel [Member]          
Real Estate Properties [Line Items]          
Property impairments | $   $ 36,600      
Properties     2    
Weehawken, New Jersey [Member] | Disposal Group, Not Discontinued Operations [Member] | Hotel [Member]          
Real Estate Properties [Line Items]          
Properties     2    
Number of properties closed 1