Supplemental Disclosure of Oil and Natural Gas Operations (Unaudited) - Schedule of Costs Incurred for Oil and Natural Gas Producing Activities (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Acquisition costs:
Proved properties	$ 24,855	$ 17,310	$ 482,160
Unproved properties	27,165	119,662	2,893,434
Development costs	1,372,919	1,762,218	1,207,401
Total	$ 1,424,939	$ 1,899,190	$ 4,582,995

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Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have proved reserves.

+ References

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-Publisher FASB
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Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have unproved reserves.

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Development costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.

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Amount of costs incurred related to oil and gas property acquisition, exploration and development activities, including capitalized costs and costs charged to expense.

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