The number of derivative instruments of a particular group held by the entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

Name:	us-gaap_DerivativeNumberOfInstrumentsHeld
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Derivative Instruments and Fair Value Measurements - Narrative (Details) - Commodity Contract	12 Months Ended
	Dec. 31, 2019 barrel_of_oil_per_day contract	Dec. 31, 2018 barrel_of_oil_per_day contract
Derivative [Line Items]
Number of contracts held \| contract	6	10
January 2020 through February 2020
Derivative [Line Items]
Production per day	258
March 2020 through April 2020
Derivative [Line Items]
Production per day	322
May 2020 through December 2020
Derivative [Line Items]
Production per day	258
January through April 2019
Derivative [Line Items]
Production per day		322
May 2019
Derivative [Line Items]
Production per day		258
June 2019 through August 2019
Derivative [Line Items]
Production per day		322
September 2019 through December 2019
Derivative [Line Items]
Production per day		258