Document and Entity Information - USD ($)	5 Months Ended
	Dec. 31, 2019	Mar. 30, 2020	Jun. 30, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	InterPrivate Acquisition Corp.
Entity Central Index Key	0001789029
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Type	10-K
Document Period End Date	Dec. 31, 2019
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2019
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Small Business	true
Entity Public Float			$ 0
Entity Common Stock, Shares Outstanding		31,055,500
Entity File Number	001-39204
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	true
Entity Incorporation State Country Code	DE