Business Combinations - Narrative (Details) - USD ($)				1 Months Ended		3 Months Ended	5 Months Ended	12 Months Ended
	Jul. 16, 2021	Dec. 16, 2020	Mar. 02, 2020	Mar. 31, 2021	Sep. 30, 2020	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 15, 2020
Business Acquisition [Line Items]
Recapitalization exchange ratio		74.71%
Common stock, shares outstanding (in shares)		369,797,524
Cash consideration		$ 566,204,152
Shares in escrow (in shares)		10,000,000
Number of shares issued in private placement (in shares)		15,853,052	69,000,000					10,033,333
Stock sold, price per share (in dollars per share)		$ 10.00	$ 10.00	$ 23.34	$ 43.11	$ 23.34
Aggregate consideration		$ 158,500,000		$ 408,000,000	$ 11,700,000
Shares authorized (in shares)		635,000,000					635,000,000	635,000,000
Common stock, par value (in dollars per share)		$ 0.0001					$ 0.0001	$ 0.0001	$ 0.0001
Preferred stock, par value (in dollars per share)		$ 0.0001					$ 0.0001	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)							625,000,000	625,000,000	625,000,000
Preferred stock, shares authorized (in shares)		10,000,000					10,000,000	10,000,000	10,000,000
Issuance costs				$ 5,900,000		$ 6,800,000
Aarki
Business Acquisition [Line Items]
Percentage of voting interest acquired	100.00%
Total purchase price	$ 162,347,000
Cash	95,296,000
Common stock issued	$ 67,051,000
Number of shares issued (in shares)	4,401,663
Revenue since acquisition date								$ 11,900,000
Net loss since acquisition date								5,600,000
Deferred tax liability adjustment							$ (400,000)
Transaction costs								8,000,000
Issuance costs								$ 100,000
Class A Common Stock
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)							340,000,000	340,000,000	292,000,000	332,690,933
Merger consideration (in shares)		191,932,861
Common stock, par value (in dollars per share)							$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)		500,000,000					500,000,000	500,000,000	500,000,000
Class B Common Stock
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)							69,000,000	69,000,000	78,000,000	102,614,847
Merger consideration (in shares)		76,663,551
Common stock, par value (in dollars per share)							$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)		125,000,000					125,000,000	125,000,000	125,000,000
Stock Election Shareholders
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)		359,518,849
Stock Election Shareholders | Class A Common Stock
Business Acquisition [Line Items]
Merger consideration (in shares)		191,932,860
Stock Election Shareholders | Class B Common Stock
Business Acquisition [Line Items]
Merger consideration (in shares)		76,663,551
Cash Election Shareholders
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)		75,786,931
FEAC sponsor shares
Business Acquisition [Line Items]
Shares in escrow (in shares)		5,000,000
FEAC sponsor shares | Class B Common Stock
Business Acquisition [Line Items]
Shares in escrow (in shares)		10,000,000
Sponsor Earnout Shares | Class A Common Stock
Business Acquisition [Line Items]
Number of shares issued in private placement (in shares)		5,000,000
Skillz Earnout Shares | Class A Common Stock
Business Acquisition [Line Items]
Number of shares issued in private placement (in shares)		5,000,000