Commitments and Contingencies Additional information (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($) MMcf bbl	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Oct. 23, 2018 USD ($)
Loss Contingencies [Line Items]
Supplemental environmental legal expense paid			$ 1,500,000
Document Period End Date	Mar. 31, 2020
AOC penalty				$ 130,000
First facilities agreement with midstream provider [Member]
Loss Contingencies [Line Items]
incremental volume commitment | MMcf	97.9
Delaware Basin/Wattenberg Field [Member]
Loss Contingencies [Line Items]
Transportation netted against Revenue	$ 6,400,000	$ 10,900,000
Minimum [Member] | Delaware Basin
Loss Contingencies [Line Items]
Committed Barrels of Crude Oil per day | bbl	24,000
Maximum [Member] | Delaware Basin
Loss Contingencies [Line Items]
Committed Barrels of Crude Oil per day | bbl	22,000