NET LOSS PER SHARE OF COMMON STOCK - Schedule of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Earnings Per Share [Abstract] | ||||
| Net loss attributable to Energy Vault Holdings, Inc. | $ (29,692) | $ (34,927) | $ (62,177) | $ (56,063) |
| Less: accretion of redeemable non-controlling interest | 1,337 | 0 | 2,423 | 0 |
| Net loss attributable to common stockholders – basic | (31,029) | (34,927) | (64,600) | (56,063) |
| Less: Gain on change in fair value of OIC Warrant liability | 1,620 | 0 | 1,220 | 0 |
| Net loss attributable to common stockholders – diluted | $ (32,649) | $ (34,927) | $ (65,820) | $ (56,063) |
| Weighted-average shares outstanding – basic (in shares) | 178,103 | 156,911 | 175,002 | 155,326 |
| OIC Warrants | 291 | 0 | 145 | 0 |
| Weighted average shares of outstanding — diluted (in shares) | 178,394 | 156,911 | 175,147 | 155,326 |
| Net loss per share attributable to common stockholders – basic (in dollars per share) | $ (0.17) | $ (0.22) | $ (0.37) | $ (0.36) |
| Net loss per share attributable to common stockholders – diluted (in dollars per share) | $ (0.18) | $ (0.22) | $ (0.38) | $ (0.36) |
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- References No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest. No definition available.
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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