XML 63 R50.htm IDEA: XBRL DOCUMENT v3.20.2
Asset Retirement Obligations - Schedule of Information Related to Asset Retirement Obligations (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2020
USD ($)
Asset Retirement Obligation Disclosure [Abstract]  
Balance at December 31, 2019 $ 5,623
Purchase price allocation adjustment 44
Accretion expense 382
Liabilities settled (44)
Balance at June 30, 2020 $ 6,005