v3.26.1
S-K 1602(b)(6) Prospectus Summary, Sponsor Compensation - Research Alliance Corporation III [Member]
May 12, 2026
USD ($)
shares
Common Shares [Member]  
SPAC Prospectus Summary, Sponsor Compensation [Line Items]  
Securities Issued or to be Issued, Shares | shares 1,014,706
Price Paid or to be Paid for Securities, Total Amount $ 25,000
Private Placement Shares [Member]  
SPAC Prospectus Summary, Sponsor Compensation [Line Items]  
Securities Issued or to be Issued, Shares | shares 275,000
Price Paid or to be Paid for Securities, Total Amount $ 2,750,000
Loans [Member]  
SPAC Prospectus Summary, Sponsor Compensation [Line Items]  
Sponsor Compensation Amount 300,000
Working Capital Loans [Member]  
SPAC Prospectus Summary, Sponsor Compensation [Line Items]  
Sponsor Compensation Amount $ 3,000,000