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Derivative Instruments - Schedule of Location and Fair Value of Outstanding Commodity Derivative Instruments (Details) - Commodity derivative instruments - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Derivatives, Fair Value [Line Items] |  |
Derivative asset, gross amounts recognized | $ 329,715 | $ 3,928
Derivative liability, gross amount recognized |  | 34,498
Derivative asset, gross amounts offset | (68,054) | (2,754)
Derivative liability, gross amounts offset |  | (14,683)
Derivative asset, net asset | 261,661 | 1,174
Derivative liability, net liability |  | 19,815
Current assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative asset, gross amounts recognized | 322,529 | 633
Derivative asset, gross amounts offset | (64,239) | (98)
Derivative asset, net asset | 258,290 | 535
Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative asset, gross amounts recognized | 7,186 | 3,295
Derivative asset, gross amounts offset | (3,815) | (2,656)
Derivative asset, net asset | $ 3,371 | 639
Current liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liability, gross amount recognized |  | 33,812
Derivative liability, gross amounts offset |  | (14,117)
Derivative liability, net liability |  | 19,695
Noncurrent liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liability, gross amount recognized |  | 686
Derivative liability, gross amounts offset |  | (566)
Derivative liability, net liability |  | $ 120

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