Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Mar. 26, 2021	Jun. 30, 2020
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2020
Entity File Number	001-39142
Entity Registrant Name	PORCH GROUP, INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-2587663
Entity Address, Address Line One	2200 1st Avenue S
Entity Address, Address Line Two	Suite 300
Entity Address, City or Town	Seattle
Entity Address State Or Province	WA
Entity Address, Postal Zip Code	98134
City Area Code	855
Local Phone Number	767-2400
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
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	false
Entity Public Float			$ 175
Entity Common Stock, Shares Outstanding		89,415,481
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Central Index Key	0001784535
Amendment Flag	false
ICFR Auditor Attestation Flag	false
Common Stock
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	PRCH
Security Exchange Name	NASDAQ
Warrants to purchase common stock
Document Information [Line Items]
Title of 12(b) Security	Warrants to purchase common stock
Trading Symbol	PRCHW
Security Exchange Name	NASDAQ