Debt - Schedule of Mortgages and Notes Payable (Details) - Mortgages and Notes Payable [Member] - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Mortgages and notes payable	$ 933,430	$ 882,952
Unamortized debt issuance costs	(11,110)	(10,309)
Long-term debt	$ 922,320	$ 872,643