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Stockholders' Equity - Additional Information (Detail) - $ / shares | 6 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Mar. 31, 2023
Subsidiary or Equity Method Investee [Line Items] |  |
Preferred stock, par value (in dollars per share) | $ 0.0001 |
Common stock, authorized (in shares) | 500,000,000 | 500,000,000
Common stock, issued (in shares) | 131,442,024 | 130,329,863
Common stock, outstanding (in shares) | 131,442,024 | 130,329,863
Equity Inducement Plan 2023 |  |
Subsidiary or Equity Method Investee [Line Items] |  |
Number of shares issued in transaction (in shares) | 5,000,000 |
Stock Options Not Settled |  |
Subsidiary or Equity Method Investee [Line Items] |  |
Units outstanding (in shares) | 199,694 |
Restricted Stock Units Vested And Not Settled (Not Unvested) |  |
Subsidiary or Equity Method Investee [Line Items] |  |
Units outstanding (in shares) | 577,302 |
Series A preferred stock |  |
Subsidiary or Equity Method Investee [Line Items] |  |
Preferred stock, issued (in shares) | 10,000 | 10,000
Preferred stock, outstanding (in shares) | 10,000 | 10,000
Share of common stock (in shares) | 1 |
Preferred stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001
Liquidation amount per share (in dollars per share) | $ 0.01 |
Preferred stock, authorized (in shares) | 10,000 | 10,000
Series A preferred stock | Maximum |  |
Subsidiary or Equity Method Investee [Line Items] |  |
Percentage of voting power of outstanding shares | 25.00% |
Roivant Sciences Ltd. | Series A preferred stock |  |
Subsidiary or Equity Method Investee [Line Items] |  |
Preferred stock, issued (in shares) | 10,000 |
Preferred stock, outstanding (in shares) | 10,000 |
Preferred stock, par value (in dollars per share) | $ 0.0001 |
Preferred Stock |  |
Subsidiary or Equity Method Investee [Line Items] |  |
Preferred stock, issued (in shares) | 0 |
Preferred stock, outstanding (in shares) | 0 |
Preferred stock, authorized (in shares) | 10,010,000 |
Common stock |  |
Subsidiary or Equity Method Investee [Line Items] |  |
Common stock, authorized (in shares) | 500,000,000 |
Common stock, par value (in dollars per share) | $ 0.0001 |
Common stock, issued (in shares) | 131,442,024 |
Common stock, outstanding (in shares) | 131,442,024 |

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