Quarterly report pursuant to Section 13 or 15(d)

Mortgages, Loans Payable And Other Obligations (Narrative) (Details)

v3.20.2
Mortgages, Loans Payable And Other Obligations (Narrative) (Details)
 9 Months Ended
Sep. 30, 2020
USD ($)
property
item
Sep. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]      
Number of properties with encumbered company mortgages | property 19    
Carrying value of encumbered properties $ 2,800,000,000    
Cash paid for interest 72,874,000 $ 75,120,000  
Interest capitalized 18,658,000 14,315,000  
Total indebtedness $ 2,895,882,000   $ 2,808,518,000
Total indebtedness, weighted average interest rate 3.66%   3.81%
Discontinued Operations [Member]      
Debt Instrument [Line Items]      
Cash paid for interest $ 3,862,000 3,848,000  
Projects Under Development And Developable Land [Member]      
Debt Instrument [Line Items]      
Number of projects with encumbered company mortgages | item 4    
Carrying value of encumbered properties $ 645,000,000    
Unconsolidated Joint Venture [Member]      
Debt Instrument [Line Items]      
Interest capitalized 1,017,000 $ 990,000  
Revolving Credit Facility Borrowing And Other Variable Rate Mortgage Debt [Member]      
Debt Instrument [Line Items]      
Total indebtedness $ 562,361,000   $ 509,656,000
Total indebtedness, weighted average interest rate 2.83%   3.54%
Fixed Rate Debt And Other Obligations [Member]      
Debt Instrument [Line Items]      
Total indebtedness $ 2,333,521,000   $ 2,298,862,000
Total indebtedness, weighted average interest rate 3.86%   3.87%