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Share-Based Payments - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions |  | 4 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Oct. 07, 2020 | Apr. 24, 2021 | Jan. 02, 2021 | Oct. 03, 2020 | Apr. 18, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock warrant, outstanding and nonvested |  | 4,241,071 | 4,349,817 |  | 0
Unrecognized cost related to non-vested warrant shares |  | $ 22.0 |  |  |
Non-vested warrant shares expensed as vesting conditions are satisfied over the remaining term |  | 6 years 6 months |  |  |
Warrant shares, vested and exercisable |  | 1,196,201 |  |  |
Non-vested warrant shares, intrinsic value |  | $ 8.2 |  |  |
Vested warrant shares, intrinsic value |  | $ 2.3 |  |  |
NV Investment Holdings [Member] | Commercial Agreement [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Warrant to acquire number of securities, common stock shares | 5,437,272 |  |  |  |
Exercise price | $ 17.7257 |  |  |  |
Warrant commercial supply agreement | $ 200.0 |  |  |  |
Right to purchase warrant, expiration date | Oct. 07, 2027 |  |  |  |
NV Investment Holdings [Member] | Commercial Agreement [Member] | Warrants One [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Percentage of warrant, outstanding and issuable shares | 2.50% |  |  |  |
Warrant to purchase number of securities, common stock shares vested | 1,087,455 |  |  |  |
Warrant grant date fair value per share | $ 5.51 |  |  |  |
NV Investment Holdings [Member] | Commercial Agreement [Member] | Warrants Two [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Percentage of warrant, outstanding and issuable shares | 10.00% |  |  |  |
Warrant grant date fair value per share | $ 5.33 |  |  |  |
Stock warrant, outstanding and nonvested | 4,349,817 |  |  |  |
Restricted Stock Awards [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost |  |  |  | $ 11.1 |
Unrecognized compensation cost, weighted average period of recognition |  | 2 years 7 months 6 days |  |  |

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