| Cover | Sep. 14, 2021 |
| Entity Listings [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Sep. 14, 2021 |
| Entity Registrant Name | SKILLZ INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-39243 |
| Entity Tax Identification Number | 84-4478274 |
| Entity Address, Address Line One | PO Box 445 |
| Entity Address, City or Town | San Francisco |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94104 |
| City Area Code | 415 |
| Local Phone Number | 762-0511 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001801661 |
| Common Stock | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Class A common stock, par value $0.0001 per share |
| Trading Symbol | SKLZ |
| Security Exchange Name | NYSE |
| Warrant | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Warrants to purchase one share of Class A common stock, each at an exercise price of $11.50 per share |
| Trading Symbol | SKLZ.WS |
| Security Exchange Name | NYSE |
