Cover Page - shares	6 Months Ended
	Jun. 30, 2022	Aug. 04, 2022
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Entity Registrant Name	Investcorp Europe Acquisition Corp I
Entity Central Index Key	0001857410
Entity File Number	001-41161
Entity Tax Identification Number	00-0000000
Entity Incorporation, State or Country Code	E9
Entity Address, Address Line One	Century Yard
Entity Address, Address Line Two	Cricket Square Elgin Avenue
Entity Address, Address Line Three	P.O. Box 1111
Entity Address, City or Town	George Town
Entity Address, Country	KY
Entity Address, Postal Zip Code	KY1-1102
City Area Code	345
Local Phone Number	949-5122
Document Quarterly Report	true
Document Transition Report	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Shell Company	true
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Title of 12(b) Security	Class A ordinary shares, par value $0.0001 per share
Trading Symbol	IVCB
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 and one-half of one redeemable warrant
Trading Symbol	IVCBU
Security Exchange Name	NASDAQ
Redeemable warrants [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
Trading Symbol	IVCBW
Security Exchange Name	NASDAQ
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		34,500,000
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		8,625,000