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Investment in Real Estate (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Real Estate [Abstract]    
Land $ 1,313,385 $ 1,313,385
Building and improvements 6,259,913 6,241,254
Tenant improvements 811,870 786,991
Furniture and fixtures 14,043 14,020
Property under development 6,061 5,827
INVESTMENT IN REAL ESTATE, AT COST $ 8,405,272 $ 8,361,477