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Related Party Transactions (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Related Party Transactions [Abstract]        
Management fees earned $ 636 $ 696 $ 1,945 $ 2,145