Stock-Based Compensation - Share Based Compensation Expense Related to Issuance of Stock Option Awards to Employees and Non Employees Related to Employee Stock Purchase Plan (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense, total	$ 13,787	$ 9,896	$ 24,167	$ 18,795
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense, total	4,196	4,318	7,864	8,461
Selling, General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense, total	$ 9,591	$ 5,578	$ 16,303	$ 10,334

Stock-Based Compensation - Share Based Compensation Expense Related to Issuance of Stock Option Awards to Employees and Non Employees Related to Employee Stock Purchase Plan (Detail) - USD ($)
$ in Thousands

3 Months Ended

6 Months Ended

Jun. 30, 2025

Jun. 30, 2024

Jun. 30, 2025

Jun. 30, 2024

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share based compensation expense, total

$ 13,787

$ 9,896

$ 24,167

$ 18,795

Research and Development [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share based compensation expense, total

4,196

4,318

7,864

8,461

Selling, General and Administrative [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share based compensation expense, total

$ 9,591

$ 5,578

$ 16,303

$ 10,334

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details