Convertible Redeemable Preferred Shares - Preferred Shares Activity (Details)
$ in Thousands |
12 Months Ended |
|
Dec. 31, 2020
USD ($)
shares
|
|---|
| Increase (Decrease) in Temporary Equity [Roll Forward] |
|
| Preferred stock outstanding, beginning balance |
$ 239,970
|
| Issuance of convertible redeemable preferred shares, net of issuance costs |
50,000
|
| Accretion on convertible redeemable preferred shares to redemption value |
193,466
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO |
(483,436)
|
| Preferred stock outstanding, ending balance |
$ 0
|
| Series A Preferred Stock |
|
| Increase (Decrease) in Temporary Equity [Roll Forward] |
|
| Preferred stock, shares outstanding, beginning balance (in shares) | shares |
55,626,960
|
| Preferred stock outstanding, beginning balance |
$ 90,050
|
| Accretion on convertible redeemable preferred shares to redemption value |
$ 188,085
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO (in shares) | shares |
(55,626,960)
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO |
$ (278,135)
|
| Preferred stock, shares outstanding, ending balance (in shares) | shares |
0
|
| Preferred stock outstanding, ending balance |
$ 0
|
| Series B Preferred Stock |
|
| Increase (Decrease) in Temporary Equity [Roll Forward] |
|
| Preferred stock, shares outstanding, beginning balance (in shares) | shares |
50,783,698
|
| Preferred stock outstanding, beginning balance |
$ 30,046
|
| Accretion on convertible redeemable preferred shares to redemption value |
$ 45
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO (in shares) | shares |
(50,783,698)
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO |
$ (30,091)
|
| Preferred stock, shares outstanding, ending balance (in shares) | shares |
0
|
| Preferred stock outstanding, ending balance |
$ 0
|
| Series B+ Preferred Stock |
|
| Increase (Decrease) in Temporary Equity [Roll Forward] |
|
| Preferred stock, shares outstanding, beginning balance (in shares) | shares |
26,651,410
|
| Preferred stock outstanding, beginning balance |
$ 46,274
|
| Accretion on convertible redeemable preferred shares to redemption value |
$ 197
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO (in shares) | shares |
(26,651,410)
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO |
$ (46,471)
|
| Preferred stock, shares outstanding, ending balance (in shares) | shares |
0
|
| Preferred stock outstanding, ending balance |
$ 0
|
| Series C Preferred Stock |
|
| Increase (Decrease) in Temporary Equity [Roll Forward] |
|
| Preferred stock, shares outstanding, beginning balance (in shares) | shares |
34,793,413
|
| Preferred stock outstanding, beginning balance |
$ 73,600
|
| Accretion on convertible redeemable preferred shares to redemption value |
$ 3,006
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO (in shares) | shares |
(34,793,413)
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO |
$ (76,606)
|
| Preferred stock, shares outstanding, ending balance (in shares) | shares |
0
|
| Preferred stock outstanding, ending balance |
$ 0
|
| Series C+ Preferred Stock |
|
| Increase (Decrease) in Temporary Equity [Roll Forward] |
|
| Preferred stock, shares outstanding, beginning balance (in shares) | shares |
0
|
| Preferred stock outstanding, beginning balance |
$ 0
|
| Issuance of convertible redeemable preferred shares, net of issuance costs (in shares) | shares |
15,062,510
|
| Issuance of convertible redeemable preferred shares, net of issuance costs |
$ 50,000
|
| Accretion on convertible redeemable preferred shares to redemption value |
$ 2,133
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO (in shares) | shares |
(15,062,510)
|
| Conversion of convertible redeemable preferred shares upon completion of the IPO |
$ (52,133)
|
| Preferred stock, shares outstanding, ending balance (in shares) | shares |
0
|
| Preferred stock outstanding, ending balance |
$ 0
|