Cover Page - shares	6 Months Ended
	Jun. 30, 2022	Aug. 15, 2022
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2022
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2022
Document Quarterly Report	true
Document Transition Report	false
Current Fiscal Year End Date	--12-31
Entity Registrant Name	GLOBAL TECHNOLOGY ACQUISITION CORP. I
Entity Central Index Key	0001848821
Entity File Number	001-40948
Entity Incorporation, State or Country Code	E9
Entity Tax Identification Number	66-0969672
Entity Address, Address Line One	19 W 24th St
Entity Address, Address Line Two	10th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10010
City Area Code	323
Local Phone Number	577-9874
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	true
Title of 12(b) Security	Class A ordinary shares, par value $0.0001 per share
Trading Symbol	GTAC
Security Exchange Name	NASDAQ
Capital Units [Member]
Document Information [Line Items]
Title of 12(b) Security	Units, each consisting of one Class A ordinary share, $0.0001 par value per share and one-half of one redeemable warrant
Trading Symbol	GTACU
Security Exchange Name	NASDAQ
Warrant [Member]
Document Information [Line Items]
Title of 12(b) Security	Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share
Trading Symbol	GTACW
Security Exchange Name	NASDAQ
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		20,000,000
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		5,000,000