Document and Entity Information - shares	6 Months Ended
	Sep. 30, 2020	Nov. 06, 2020
Document Information [Line Items]
Document Type	10-Q
Document Period End Date	Sep. 30, 2020
Entity Registrant Name	FOLEY TRASIMENE ACQUISITION CORP.
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	true
Entity Central Index Key	0001809104
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Transition Report	false
Units, each consisting of one share of Class A common stock and one-third of one redeemable warrant
Document Information [Line Items]
Trading Symbol	WPF.U
Title of 12(b) Security	Units, each consisting of one share of Class A commonstock and one-third of one redeemable warrant
Security Exchange Name	NYSE
Class A common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		103,500,000
Trading Symbol	WPF
Title of 12(b) Security	Class A common stock, par value $0.0001 per share
Security Exchange Name	NYSE
Redeemable warrants, each whole warrant exercisable
Document Information [Line Items]
Trading Symbol	WPF WS
Title of 12(b) Security	Redeemable warrants, each whole warrant exercisablefor one share of Class A common stock at an exercise price of $11.50 per share
Security Exchange Name	NYSE
Class B common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		25,875,000