Debt - Schedule of Debt Maturities (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Scheduled Debt Maturities    
Total debt, net $ 3,709,863 $ 4,092,787
Mortgages and Notes Payable    
Scheduled Debt Maturities    
Remainder of 2016 34,561  
2017 259,501  
2018 594,894  
2019 561,825  
2020 452,302  
Thereafter 1,900,567  
Total debt, net 3,803,650  
Mortgages and Notes Payable | Scheduled Principal    
Scheduled Debt Maturities    
Remainder of 2016 6,004  
2017 26,115  
2018 42,115  
2019 44,325  
2020 39,096  
Thereafter 249,792  
Total debt, net 407,447  
Mortgages and Notes Payable | Balloon Payment    
Scheduled Debt Maturities    
Remainder of 2016 28,557  
2017 233,386  
2018 552,779  
2019 517,500  
2020 413,206  
Thereafter 1,650,775  
Total debt, net $ 3,396,203