v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Class A ordinary shares subject to possible redemption (Details) - USD ($)
3 Months Ended 6 Months Ended 10 Months Ended
May 05, 2026
Feb. 19, 2026
Mar. 31, 2026
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
[1]
Dec. 31, 2023
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 $ 102,326 $ 140,482   242,808 0    
Gross proceeds         225,400,000    
Class A ordinary shares subject to possible redemption | Spring Valley Acquisition III              
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    
[1] Share amounts have been retrospectively adjusted to reflect the ten-for-one (10:1) reverse share split effective August 2025. See note 12 for details.