Summary of Significant Accounting Policies - Redeemable Convertible Preferred Stock Warrants (Details)	Jun. 14, 2019 shares
Redeemable Convertible Preferred Stock Warrants
Number of warrants converted	336,386
Basis of conversion to purchase common stock	1
Shares issued upon conversion of warrants	336,386
Class B common stock
Redeemable Convertible Preferred Stock Warrants
Shares issued	322,278

The number of warrants converted to purchase common stock.

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Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares issued during the period as a result of the conversion of convertible securities.

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