XML 70 R59.htm IDEA: XBRL DOCUMENT v3.20.2
Dividend Reinvestment Plan (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dividend Reinvestment Plan      
Number of shares issued under the dividend reinvestment plan 55,000 77,000 166,000
Maximum      
Dividend Reinvestment Plan      
Discount rate (as a percent)   5.00%