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Debt - Schedule of Maturities of Long-term Debt (Details) - Mortgages [Member] - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
2017 amortization $ 9,904  
2018 amortization 2,880  
2019 amortization 2,188  
2020 amortization 2,268  
2021 amortization 2,350  
Thereafter 7,356  
Total amortization 26,946  
2017 maturities 336,009  
2018 maturities 262,210  
2019 maturities 250,000  
2020 maturities 0  
2021 maturities 0  
Thereafter 742,675  
Total maturities 1,590,894  
2017 345,913  
2018 265,090  
2019 252,188  
2020 2,268  
2021 2,350  
Thereafter 750,031  
Total $ 1,617,840 $ 1,640,145