Derivative Instruments and Fair Value Measurements - Narrative (Details) - Commodity Contract	3 Months Ended	9 Months Ended
	Mar. 31, 2020 barrel_of_oil_per_day	Sep. 30, 2020 barrel_of_oil_per_day contract	Dec. 31, 2019 contract
Derivative Instruments, Gain (Loss) [Line Items]
Number of contracts held | contract		4	6
October 2020 through December 2020
Derivative Instruments, Gain (Loss) [Line Items]
Production		258
January 2021 through December 2021
Derivative Instruments, Gain (Loss) [Line Items]
Production		64
January 2020 through February 2020
Derivative Instruments, Gain (Loss) [Line Items]
Production	258
March 2020 through April 2020
Derivative Instruments, Gain (Loss) [Line Items]
Production	322
May 2020 through December 2020
Derivative Instruments, Gain (Loss) [Line Items]
Production	258