v3.25.2
Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
 6 Months Ended 12 Months Ended
May 06, 2024
Jun. 30, 2025
Dec. 31, 2024
Dec. 31, 2023
Accounting Policies [Line Items]        
Cash   $ 426,052 $ 2,412,564 $ 0
Unrecognized tax benefits   0 0 0
Amounts accrued for interest and penalties   0 0 $ 0
Transaction costs of stock $ 14,560,986 14,560,986 14,560,986  
Upfront discount on underwriters 5,750,000 5,750,000 5,750,000  
Deferred underwriting fees 10,062,500 10,062,500 10,062,500  
Other offering cost 557,236 557,236 557,236  
Reimbursement of underwriters fee $ 1,808,750 1,808,750 1,808,750  
Cash and Cash Equivalents   0 0  
Maximum Threshold Limit Of Withdrawal For Working Capital Deficit   1,000,000 1,000,000  
Net amounts of withdrawn from working capital requirements   1,000,000 1,000,000  
Remaining available permitted withdrawal for working capital deficit   0    
Maximum threshold limit renewed for withdrawal for working capital deficit   1,000,000    
Withdrawn amount for working capital deficit     1,000,000  
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]        
Accounting Policies [Line Items]        
Debt Securities, Held-to-Maturity, Fair Value   302,369,000 296,133,481  
Money Market Investment [Member] | Fair Value, Inputs, Level 1 [Member]        
Accounting Policies [Line Items]        
Debt Securities, Held-to-Maturity, Fair Value   $ 816 $ 2,216