Mortgage and Other Indebtedness, Net - Principal Payments (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Schedule of principal repayments [Abstract]
2018	$ 644,007
2019	305,957
2020	563,087
2021	498,168
2022	431,331
Thereafter	1,635,795
Mortgage and other indebtedness	4,078,345
Unamortized discounts	(11,619)
Unamortized deferred financing costs	(16,516)	$ (18,938)
Total mortgage and other indebtedness, net	4,172,353	$ 4,230,845
Acadiana Mall \| Mortgages
Schedule of principal repayments [Abstract]
Total mortgage and other indebtedness, net	$ 122,143

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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