XML 52 R37.htm IDEA: XBRL DOCUMENT v3.20.2
Loss on Disposal of Assets (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]        
Loss on disposal of assets $ 0 $ 1,550,000 $ 0 $ 3,463,000