The cash inflow from the additional capital contribution to the entity, net of investment fees and offering costs.

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Business (Details) $ / shares in Units, $ in Thousands	1 Months Ended	9 Months Ended
Business (Details) $ / shares in Units, $ in Thousands	Jul. 31, 2020 USD ($) $ / shares shares	Sep. 30, 2020 segment	Sep. 30, 2019 USD ($)
Business
Number of Operating Segments \| segment		1
Underwriting discounts and commissions	$ 8,100
Conversion of redeemable convertible preferred stock to common stock			$ 209,669
Deferred offering cost	$ 600
IPO
Business
Offering price \| $ / shares	$ 16.00
Proceeds from stock offering, net of underwriting discounts and commissions	$ 126,100
Class A common stock \| IPO
Business
Shares issued \| shares	7,642,125
Class A common stock \| Underwriters option
Business
Shares issued \| shares	610,875
Class B common stock \| IPO
Business
Shares issued \| shares	781,250