Quarterly report pursuant to Section 13 or 15(d)

Investments in Unconsolidated Real Estate Joint Ventures (Unconsolidated Real Estate Joint Ventures) (Details)

v3.19.3
Investments in Unconsolidated Real Estate Joint Ventures (Unconsolidated Real Estate Joint Ventures) (Details)
ft² in Thousands, $ in Thousands
Sep. 30, 2019
USD ($)
ft²
Dec. 31, 2018
USD ($)
ft²
Schedule of Equity Method Investments [Line Items]    
Square Feet | ft² 878  
RioCan Canda [Member]    
Schedule of Equity Method Investments [Line Items]    
Ownership % 50.00% 50.00%
Square Feet | ft² 764 924
Carrying Value of Investment $ 94,400 $ 96,000
Columbus, Charlotte, National Harbor and Galveston/Houston [Member]    
Schedule of Equity Method Investments [Line Items]    
Equity Method Investment Reported In Liabilities $ (40,300) $ (32,500)
Columbus [Member]    
Schedule of Equity Method Investments [Line Items]    
Ownership % 50.00% 50.00%
Square Feet | ft² 355 355
Equity Method Investment Reported In Liabilities $ (2,700) $ (1,600)
Charlotte [Member]    
Schedule of Equity Method Investments [Line Items]    
Ownership % 50.00% 50.00%
Square Feet | ft² 399 398
Equity Method Investment Reported In Liabilities $ (11,800) $ (10,800)
National Harbor [Member]    
Schedule of Equity Method Investments [Line Items]    
Ownership % 50.00% 50.00%
Square Feet | ft² 341 341
Equity Method Investment Reported In Liabilities $ (5,700) $ (5,100)
Galveston/Houston [Member]    
Schedule of Equity Method Investments [Line Items]    
Ownership % 50.00% 50.00%
Square Feet | ft² 353 353
Equity Method Investment Reported In Liabilities $ (20,100) $ (15,000)
Unconsolidated Properties [Member]    
Schedule of Equity Method Investments [Line Items]    
Total joint venture debt, net 367,927 367,865
Unconsolidated Properties [Member] | RioCan Canda [Member]    
Schedule of Equity Method Investments [Line Items]    
Total joint venture debt, net 9,200 9,300
Unconsolidated Properties [Member] | Columbus [Member]    
Schedule of Equity Method Investments [Line Items]    
Total joint venture debt, net 84,900 84,700
Unconsolidated Properties [Member] | Charlotte [Member]    
Schedule of Equity Method Investments [Line Items]    
Total joint venture debt, net 99,500 99,500
Unconsolidated Properties [Member] | National Harbor [Member]    
Schedule of Equity Method Investments [Line Items]    
Total joint venture debt, net 94,400 94,500
Unconsolidated Properties [Member] | Galveston/Houston [Member]    
Schedule of Equity Method Investments [Line Items]    
Total joint venture debt, net 79,800 79,600
Mortgages [Member] | Unconsolidated Properties [Member]    
Schedule of Equity Method Investments [Line Items]    
Net discount and debt origination costs $ 1,200 $ 1,400