XML 54 R43.htm IDEA: XBRL DOCUMENT v3.20.2
Revenues (Narrative) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2020
Revenues [Abstract]    
Reduction of net income due to recording of revenue on cash basis and write off outstanding straight-line receivable $ 1.2 $ 1.2
Unpaid billed charges of rent and tenant reimbursements 4.0  
Unrecorded revenue from tenants $ 4.0