Receivables and Other Assets - Schedule of Receivables and Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Receivables and Other Assets [Abstract]
Tenant receivables, net	$ 12,471	$ 20,269
Other receivables, net	8,548	9,305
Deferred financing costs, net	7,328	7,759
Deferred leasing costs, net	26,383	25,494
Straight-line rent receivables, net	89,674	85,143
Prepaid expenses, deposits, equipment and other, net	57,291	58,358
Derivative financial instruments - interest rate swaps	1,991	1,529
Total	$ 203,686	$ 207,857