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Interest Capitalized (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Interest Capitalized        
Capitalized interest during the development and redevelopment of real estate assets $ 15,443 $ 16,277 $ 50,159 $ 44,008