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Real Estate and Intangible Assets - Future Operating Lease Payments from Tenants under Non-Cancelable Leases (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Future Lease Payments    
2020 $ 33,713 $ 46,483
2021 41,004 40,799
2022 40,007 38,793
2023 40,291 39,351
2024 34,426 34,080
Thereafter 124,482 125,137
Total lease payments to be received $ 313,923 $ 324,643