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v3.26.1

Stockholders' Deficit - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2026 | Mar. 31, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2021 | Dec. 31, 2025
Class Of Stock [Line Items] |  |  |  |  |  |  |
Number of warrants exercised (in shares) | 0 | 17,191,435 | 0 |  |  |  |
Convertible Note | December 2024 Convertible Promissory Note | Affiliated Entity |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Carrying value of debt |  | $ 25.0 |  |  |  |  |
Debt converted, shares issued (in shares) |  | 4,606,596 |  |  |  |  |
ATM Offering Program |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Proceeds from equity offerings, net of issuance costs | $ 45.1 |  | $ 98.2 | $ 147.2 | $ 98.2 |  |
2023 and 2025 Warrants |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Number of warrants exercised (in shares) |  |  |  |  | 0 |  |
ATM Offering Program |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
ATM, amount available for future issuances |  |  |  |  |  |  | $ 500.0
Common stock, value available for future stock issuance | 349.2 |  |  | $ 349.2 |  |  |
ATM Offering Program | Maximum |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Percentage of sales agent commission |  |  |  |  |  | 3.00% |
2015 Share Repurchase Plan |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Repurchase of common stock, shares (in shares) |  |  |  | 0 | 0 |  |
Remaining authorized repurchase amount | $ 18.3 |  |  | $ 18.3 |  |  |

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