v3.26.1
Segment Information (Details)
12 Months Ended
Dec. 31, 2025
USD ($)
segment
Nov. 30, 2025
USD ($)
segment
Dec. 31, 2024
USD ($)
Nov. 30, 2024
USD ($)
Segment Information        
Number of reportable segments | segment   1    
Cash   $ 1,301,928   $ 717
CIK_0001843477_Spring Valley Acquisition Corp. II        
Segment Information        
Number of reportable segments | segment 1      
Trust Account $ 26,615,977   $ 25,554,084  
Cash 154,890   495,352  
General and administrative expenses 1,330,775   842,565  
Income from investments held in Trust Account 1,063,695   7,611,956  
Reportable segment | CIK_0001843477_Spring Valley Acquisition Corp. II        
Segment Information        
Trust Account 26,615,977   25,554,084  
Cash 154,890   495,352  
General and administrative expenses 1,330,775   842,565  
Income from investments held in Trust Account $ 1,063,695   $ 7,611,956