Cover - shares	9 Months Ended
	Sep. 30, 2025	Dec. 05, 2025
Entity Listings [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2025
Document Transition Report	false
Entity File Number	001-39243
Entity Registrant Name	SKILLZ INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	84-4478274
Entity Address, Address Line One	6625 Badura Ave
Entity Address, City or Town	Las Vegas
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89118
City Area Code	415
Local Phone Number	762-0511
Title of 12(b) Security	Class A common stock, par value $0.0001 per share
Trading Symbol	SKLZ
Security Exchange Name	NYSE
Entity Current Reporting Status	No
Entity Interactive Data Current	No
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Amendment flag	false
Central Index Key	0001801661
Entity Fiscal Year Focus	2025
Entity Fiscal Period Focus	Q3
Current Fiscal Year End	--12-31
Class A Common Stock
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		11,678,067
Class B Common Stock
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		3,430,063