Redeemable Convertible Preferred Stock - Additional Information (Detail)
$ / shares in Units, $ in Thousands |
1 Months Ended |
3 Months Ended |
12 Months Ended |
|
Dec. 31, 2020
USD ($)
$ / shares
shares
|
Jul. 31, 2018
USD ($)
$ / shares
shares
|
Jun. 30, 2021 |
Mar. 31, 2021
BoardofDirectors
$ / shares
|
Mar. 31, 2021
USD ($)
BoardofDirectors
$ / shares
|
Mar. 31, 2019
USD ($)
|
| Temporary Equity [Line Items] |
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|
|
|
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| Payment of stock issuance costs | $ |
|
|
|
|
$ 232
|
$ 394
|
| Voting Agreement [Member] |
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| Temporary Equity [Line Items] |
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| Number of directors who can be voted by the holders of temporary equity upon conversion into common stock |
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2
|
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| Number of directors who can be voted by the holders of temporary and permanent equity |
|
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|
1
|
|
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| Number of directors who can be voted by the holders of permanent equity. |
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2
|
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| Amended Voting Agreement [Member] |
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| Temporary Equity [Line Items] |
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| Number of directors | BoardofDirectors |
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7
|
7
|
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| Forecast [Member] |
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| Temporary Equity [Line Items] |
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| Proceeds from initial public offer | $ |
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$ 50,000
|
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| Series A |
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| Temporary Equity [Line Items] |
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| Temporary equity dividend per share |
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|
$ 0.07545
|
$ 0.07545
|
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| Temporary equity conversion price per share |
|
|
|
$ 1.2575
|
$ 1.2575
|
|
| Common stock shares issuable for each share of temporary equity converted |
|
|
|
10
|
10
|
|
| Series A | Condition For Mandatory Redemption [Member] |
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|
|
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| Temporary Equity [Line Items] |
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|
|
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| Votes as a percentage of stock issued |
|
|
|
60.00%
|
60.00%
|
|
| Series B |
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| Temporary Equity [Line Items] |
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|
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| Temporary equity dividend per share |
|
|
|
$ 0.1842
|
$ 0.1842
|
|
| Temporary equity conversion price per share |
|
|
|
$ 3.07
|
$ 3.07
|
|
| Common stock shares issuable for each share of temporary equity converted |
|
|
|
10
|
10
|
|
| Series B | Condition For Mandatory Redemption [Member] |
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|
|
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| Temporary Equity [Line Items] |
|
|
|
|
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| Votes as a percentage of stock issued |
|
|
|
60.00%
|
60.00%
|
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| Series C |
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| Temporary Equity [Line Items] |
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|
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| Temporary equity dividend per share |
|
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|
$ 0.189
|
$ 0.189
|
|
| Temporary equity conversion price per share |
|
|
|
$ 3.15
|
$ 3.15
|
|
| Common stock shares issuable for each share of temporary equity converted |
|
|
|
10
|
10
|
|
| Series C | Condition For Mandatory Redemption [Member] |
|
|
|
|
|
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| Temporary Equity [Line Items] |
|
|
|
|
|
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| Votes as a percentage of stock issued |
|
|
|
60.00%
|
60.00%
|
|
| Series D |
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| Temporary Equity [Line Items] |
|
|
|
|
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| Temporary equity dividend per share |
|
|
|
$ 0.2429
|
$ 0.2429
|
|
| Temporary equity conversion price per share |
|
|
|
$ 4.0490
|
$ 4.0490
|
|
| Common stock shares issuable for each share of temporary equity converted |
|
|
|
10
|
10
|
|
| Series D | Condition For Mandatory Redemption [Member] |
|
|
|
|
|
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| Temporary Equity [Line Items] |
|
|
|
|
|
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| Votes as a percentage of stock issued |
|
|
|
60.00%
|
60.00%
|
|
| Series E |
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|
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| Temporary Equity [Line Items] |
|
|
|
|
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| Temporary equity dividend per share |
|
|
|
$ 0.64964
|
$ 0.64964
|
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| Temporary equity conversion price per share |
|
|
|
$ 10.827271
|
$ 10.827271
|
|
| Common stock shares issuable for each share of temporary equity converted |
|
|
|
10
|
10
|
|
| Series E | Condition For Mandatory Redemption [Member] |
|
|
|
|
|
|
| Temporary Equity [Line Items] |
|
|
|
|
|
|
| Votes as a percentage of stock issued |
|
|
|
60.00%
|
60.00%
|
|
| Series F |
|
|
|
|
|
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| Temporary Equity [Line Items] |
|
|
|
|
|
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| Temporary equity dividend per share |
|
|
|
$ 0.83305
|
$ 0.83305
|
|
| Temporary equity conversion price per share |
|
|
|
$ 13.8842
|
$ 13.8842
|
|
| Common stock shares issuable for each share of temporary equity converted |
|
|
|
10
|
10
|
|
| Series F | Condition For Mandatory Redemption [Member] |
|
|
|
|
|
|
| Temporary Equity [Line Items] |
|
|
|
|
|
|
| Votes as a percentage of stock issued |
|
|
|
60.00%
|
60.00%
|
|
| Series F-1 |
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| Temporary Equity [Line Items] |
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| Temporary equity shares issued during the period shares | shares |
4,755,037
|
|
|
|
|
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| Temporary equity issue price per share |
$ 17.35
|
|
|
|
|
|
| Proceeds from redeemable preferred stock net | $ |
$ 82,300
|
|
|
|
|
|
| Payment of stock issuance costs | $ |
$ 200
|
|
|
|
|
|
| Temporary equity dividend per share |
|
|
|
$ 1.041
|
$ 1.041
|
|
| Temporary equity conversion price per share |
|
|
|
17.35
|
17.35
|
|
| Temporary equity liquidation preference per share |
|
|
|
$ 3.4658
|
$ 3.4658
|
|
| Common stock shares issuable for each share of temporary equity converted |
|
|
|
10
|
10
|
|
| Glaxosmith Kline [Member] | Series F | Glaxosmithkline Agreement [Member] |
|
|
|
|
|
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| Temporary Equity [Line Items] |
|
|
|
|
|
|
| Temporary equity shares issued during the period shares | shares |
|
17,291,066
|
|
|
|
|
| Temporary equity issue price per share |
|
$ 17.35
|
|
|
|
|
| Proceeds from redeemable preferred stock net | $ |
|
$ 299,600
|
|
|
|
|
| Payment of stock issuance costs | $ |
|
$ 400
|
|
|
|
|
| Glaxosmith Kline [Member] | Series F-1 | Glaxosmithkline Agreement [Member] |
|
|
|
|
|
|
| Temporary Equity [Line Items] |
|
|
|
|
|
|
| Temporary equity shares issued during the period shares | shares |
|
17,291,066
|
|
|
|
|