Derivatives - Derivatives terminated (Details) - Early Contract Termination - WTI NYMEX - Commodity - Oil - Collar Option January 2021 to December 2021 [Member]	3 Months Ended
Mar. 31, 2020 $ / bbl bbl
Derivative [Line Items]
Volume (Bbl) \| bbl	912,500
Floor price ($/Bbl)	45.00
Ceiling price ($/Bbl)	71.00

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration