Document and Entity Information (USD $) - shares	5 Months Ended
	Sep. 30, 2019	Nov. 13, 2019
Entity Registrant Name	Netfin Acquisition Corp.
Entity Central Index Key	0001776903
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2019
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	No
Entity Filer Category	Non-accelerated Filer
Entity Incorporation, State or Country Code	NY
Entity Interactive Data Current	Yes
Entity File Number	001-39008
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	true
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Class A Ordinary Shares [Member]
Entity Common Stock, Shares Outstanding		25,981,000
Class B Ordinary Shares [Member]
Entity Common Stock, Shares Outstanding		6,325,000