v3.25.2
Document and Entity Information
Sep. 27, 2025
Document And Entity Information [Line Items]  
Amendment Flag false
Entity Central Index Key 0002023730
Document Type 8-K
Document Period End Date Sep. 27, 2025
Entity Registrant Name GigCapital7 Corp.
Entity Incorporation State Country Code E9
Entity File Number 001-42262
Entity Tax Identification Number 98-1790710
Entity Address, Address Line One 1731 Embarcadero Rd.
Entity Address, Address Line Two Suite 200
Entity Address, City or Town Palo Alto
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94303
City Area Code (650)
Local Phone Number 276-7040
Written Communications true
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Entity Ex Transition Period false
Units Each Consisting Of One Class A Ordinary Share And One Redeemable Warrant [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Units, each consisting of one Class A ordinary share and one redeemable warrant
Trading Symbol GIGGU
Security Exchange Name NASDAQ
Capital Unit, Class A [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Class A ordinary shares, par value $0.0001 per share
Trading Symbol GIG
Security Exchange Name NASDAQ
Redeemable Warrants Each Full Warrant Exercisable For One Class A Ordinary Share At An Exercise Price Of 11.50 Per Share [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Redeemable warrants, each full warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share
Trading Symbol GIGGW
Security Exchange Name NASDAQ