Document And Entity Information - shares	8 Months Ended
	Sep. 30, 2021	Dec. 09, 2021
Document Information Line Items
Entity Registrant Name	ION ACQUISITION CORP 3 LTD.
Trading Symbol	IACC
Document Type	10-Q/A
Current Fiscal Year End Date	--12-31
Amendment Flag	true
Amendment Description	ION Acquisition Corp. 3 Ltd. (the “Company,” “ION 3,” “we,” “us” or “our”) is filing this Amendment No. 1 to its Quarterly Report on Form 10-Q/A for the quarterly period ended September 30, 2021 (this “Amended Form 10-Q”) to amend and restate certain terms in its Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2021 originally filed with the Securities and Exchange Commission (the “SEC”) on November 12, 2021 (the “Original Quarterly Report”).
Entity Central Index Key	0001844579
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Document Period End Date	Sep. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Shell Company	true
Entity Ex Transition Period	false
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-40372
Entity Incorporation, State or Country Code	E9
Entity Tax Identification Number	00-0000000
Entity Address, Address Line One	89 Medinat Hayehudim Street
Entity Address, City or Town	Herzliya
Entity Address, Postal Zip Code	4676672
Entity Address, Country	IL
City Area Code	972 (9)
Local Phone Number	970-3620
Title of 12(b) Security	Class A ordinary shares, par value $0.0001 per share
Security Exchange Name	NYSE
Entity Interactive Data Current	Yes
Class A Ordinary Shares
Document Information Line Items
Entity Common Stock, Shares Outstanding		26,056,000
Class B Ordinary Shares
Document Information Line Items
Entity Common Stock, Shares Outstanding		6,325,000