XML 67 R55.htm IDEA: XBRL DOCUMENT v3.20.2
Properties and Equipment Midstream Asset Divestiture (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Jun. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Long Lived Assets Held-for-sale [Line Items]          
Proceeds from Divestiture of Businesses, Net of Cash Divested   $ 82,000      
Residual Proceeds Allocated to Acreage Dedication Agreements     $ 179,600    
Gain (Loss) on Disposition of Property Plant Equipment $ 289   (43,872) $ 642 $ (9,599)
Midstream Asset Divestitures [Member]          
Long Lived Assets Held-for-sale [Line Items]          
Proceeds from Sales of Assets, Investing Activities     $ 345,600    
Midstream Gas Gathering          
Long Lived Assets Held-for-sale [Line Items]          
Gain (Loss) on Disposition of Other Assets         $ 34,000