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Real Estate - Leasing Costs For Next Five Years (Details) $ in Thousands	Mar. 31, 2021 USD ($)
In-place lease valuation, net
2021	$ (1,464)
2022	(2,339)
2023	(2,845)
2024	(1,803)
2025	(1,331)
2026	(1,156)
Tenant origination and absorption costs
2021	61,186
2022	76,904
2023	69,849
2024	54,791
2025	43,007
2026	38,348
Ground leasehold interest
2021	(218)
2022	(290)
2023	(290)
2024	(291)
2025	(290)
2026	(290)
Other leasing costs
2021	4,702
2022	5,769
2023	5,637
2024	5,412
2025	5,386
2026	4,761
Other intangibles
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2021	1,125
2022	1,495
2023	1,495
2024	1,499
2025	1,495
2026	$ 1,495

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