SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Class A Ordinary Shares Subject to Possible Redemption (Details) - USD ($) |
3 Months Ended | 6 Months Ended | 10 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2026 |
Jun. 30, 2026 |
Dec. 31, 2025 |
Dec. 31, 2024 |
[1] | Dec. 31, 2023 |
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| Redeemable preferred shares | |||||||||
| Fair value of commitment shares | $ 122,953,000 | [1] | $ 245,121,000 | $ 237,671,000 | |||||
| Spring Valley Acquisition III | |||||||||
| Redeemable preferred shares | |||||||||
| Maximum percentage of interest earned on the Trust Account | 5.00% | ||||||||
| Available amount for withdrawal from Trust Account | $ 334,518 | $ 140,482 | |||||||
| Withdrawal of funds from Trust Account | 0 | ||||||||
| Gross proceeds | 225,400,000 | ||||||||
| Spring Valley Acquisition III | Class A ordinary shares subject to possible redemption | |||||||||
| Redeemable preferred shares | |||||||||
| Gross proceeds | 230,000,000 | ||||||||
| Proceeds allocated to public warrants | (1,855,333) | ||||||||
| Class A ordinary shares issuance cost | (14,190,584) | ||||||||
| Remeasurement of carrying value to redemption value | $ 1,944,194 | 1,973,142 | 18,715,081 | ||||||
| Fair value of commitment shares | $ 234,613,358 | $ 236,586,500 | $ 232,669,164 | ||||||
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- Definition Amount available for withdrawal from the assets held-in-trust account. No definition available.
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- Definition Maximum percentage of interest earned eligible for withdrawal from assets held-in-trust. No definition available.
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- Definition A portion of gross proceeds from initial public offering allocated to public warrants. No definition available.
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- Definition The amount of cash inflow from the withdrawal of funds from asset held-in-trust account. No definition available.
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- Definition Amount of issuance costs associated with the initial public offering. No definition available.
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- Definition The cash inflow associated with the amount received from entity's first offering of stock to the public. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Value of accretion of temporary equity to its redemption value during the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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