Mortgage and Other Indebtedness - Schedule of Debt Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Scheduled Principal Payments
2021	$ 2,303
2022	1,043
2023	806
2024	854
2025	904
Thereafter	4,672
Scheduled Principal Payments	10,582
Term Maturities
2021	0
2021	203,877
2023	256,517
2024	0
2025	330,000
Thereafter	375,100
Term Maturities	1,165,494
Total
2021	2,303
2022	204,920
2023	257,323
2024	854
2025	330,904
Thereafter	379,772
Total	1,176,076
Unamortized net debt premiums and issuance costs, net	(5,282)
Long-term debt	$ 1,170,794	$ 1,146,580

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