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Intangible Assets, net (Tables) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Schedule of finite-lived intangible assets | Acquired finite-lived intangible assets are amortized on a straight-line basis over the following periods:
|  | Estimated Useful Life (Years)
Developed technology |  | 13
In 2020, the Company recorded an impairment loss of $5,115 to fully write down the value of its long-lived assets in the Permian basin as it has no intentions to develop these properties in the foreseeable future. The following table reflects the changes in the net carrying amounts of the Company’s intangible assets for the year ended December 31, 2020.
|  | Balance at December 31, 2019 |  | Assets Acquired Pursuant to Business Combination |  | Impairment Charges |  | Amortization Expense |  | Balance at December 31, 2020
Developed technology |  | $ | 9,046 |  |  | $ | — |  |  | $ | — |  |  | $ | 793 |  |  | $ | 8,253 |
|  | $ | 9,046 |  |  | $ | — |  |  | $ | — |  |  | $ | 793 |  |  | $ | 8,253 |
| The following table reflects the changes in the net carrying amounts of the Company’s finite-lived intangible assets for the year ended December 31, 2019.
|  | Balance at December 31, 2018 |  | Assets Acquired Pursuant to Business Combination |  | Impairment Charges |  | Amortization Expense |  | Balance at December 31, 2019
Developed technology |  | $ | 17,956 |  |  | $ | — |  |  | $ | 7,628 |  |  | $ | 1,282 |  |  | $ | 9,046 |
Customer relationships |  | 112 |  |  | — |  |  | — |  |  | 112 |  |  | — |
|  | $ | 18,068 |  |  | $ | — |  |  | $ | 7,628 |  |  | $ | 1,394 |  |  | $ | 9,046 |
Schedule of future amortization of finite lived intangible assets | The table below reflects the future estimated amortization expense for amortizable intangible assets as of December 31, 2020.
Year ending December 31, |  |
2021 |  | $ | 792 |
2022 |  | 792 |
2023 |  | 792 |
2024 |  | 792 |
2025 |  | 792 |
Thereafter |  | 4,293 |
Total |  | $ | 8,253 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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