S-K 1602(a)(3) Forepart, Sponsor Compensation	Dec. 05, 2025 USD ($) $ / shares shares
SPAC Offering Forepart, Sponsor Compensation [Line Items]
Securities Issued or to be Issued, Shares	3,533,750
Price Paid or to be Paid for Securities, Per Share (in Dollars per share) \| $ / shares	$ 0.007
Sponsor [Member]
SPAC Offering Forepart, Sponsor Compensation [Line Items]
Price Paid or to be Paid for Securities, Total Amount (in Dollars) \| $	$ 4,500,000
Over-Allotment Option [Member]
SPAC Offering Forepart, Sponsor Compensation [Line Items]
Securities Issued or to be Issued, Shares	468,750
Price Paid or to be Paid for Securities, Total Amount (in Dollars) \| $	$ 4,687,500
Class A Ordinary Shares [Member] \| Sponsor [Member]
SPAC Offering Forepart, Sponsor Compensation [Line Items]
Securities Issued or to be Issued, Shares	450,000
Class B Ordinary Shares [Member]
SPAC Offering Forepart, Sponsor Compensation [Line Items]
Price Paid or to be Paid for Securities, Per Share (in Dollars per share) \| $ / shares	$ 0.0001
Class B Ordinary Shares [Member] \| Sponsor [Member]
SPAC Offering Forepart, Sponsor Compensation [Line Items]
Securities Issued or to be Issued, Shares	3,533,750

Helix Acquisition Corp. III S-1