Convertible Preferred Stock, Common Stock and Stockholders' Equity (Deficit)- Summary of Common Stock Reserved for Future Issuance (Detail) - shares
|
Dec. 31, 2021 |
Dec. 31, 2020 |
| Schedule Of Convertible Preferred Stock [Line Items] |
|
|
| Total shares of authorized common stock reserved for future issuance |
56,394,803
|
130,804,276
|
| Common stock options outstanding and unvested RSU [Member] |
|
|
| Schedule Of Convertible Preferred Stock [Line Items] |
|
|
| Total shares of authorized common stock reserved for future issuance |
20,267,035
|
18,493,013
|
| Shares available for issuance under the 2021 plan [Member] |
|
|
| Schedule Of Convertible Preferred Stock [Line Items] |
|
|
| Total shares of authorized common stock reserved for future issuance |
21,502,768
|
0
|
| Shares available for issuance under the 2013 plan [Member] |
|
|
| Schedule Of Convertible Preferred Stock [Line Items] |
|
|
| Total shares of authorized common stock reserved for future issuance |
0
|
4,427,323
|
| Convertible preferred stock outstanding [Member] |
|
|
| Schedule Of Convertible Preferred Stock [Line Items] |
|
|
| Total shares of authorized common stock reserved for future issuance |
0
|
107,592,801
|
| Warrants to purchase Series D convertible preferred stock [Member] |
|
|
| Schedule Of Convertible Preferred Stock [Line Items] |
|
|
| Total shares of authorized common stock reserved for future issuance |
0
|
110,211
|
| Common stock warrants outstanding [Member] |
|
|
| Schedule Of Convertible Preferred Stock [Line Items] |
|
|
| Total shares of authorized common stock reserved for future issuance |
8,525,000
|
180,928
|
| Shares available for issuance as Earnout RSU [Member] |
|
|
| Schedule Of Convertible Preferred Stock [Line Items] |
|
|
| Total shares of authorized common stock reserved for future issuance |
1,400,000
|
0
|
| Employee stock purchase plan [Member] |
|
|
| Schedule Of Convertible Preferred Stock [Line Items] |
|
|
| Total shares of authorized common stock reserved for future issuance |
4,700,000
|
0
|