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Dispositions and Impairment - Additional Information (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2021
USD ($)
property
Mar. 31, 2020
USD ($)
property
Dec. 31, 2020
property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Number of properties disposed | property 130    
Debt satisfaction gain | $   $ 1,393  
Number of real estate properties held for sale | property 1   2
Properties in Charleston, SC | Disposal Group, Disposed of by Sale, Not Discontinued Operations      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Number of properties disposed | property   1  
Transferred Property | Office Building      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Aggregate gross disposition price | $ $ 58,092 $ 29,605  
Sold Properties      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Gain on sale of properties | $ $ 21,919 $ 9,805