Net Loss Per Share Attributable to Common Shareholders - Schedule of Antidilutive Securities not Include in Computation of Net Loss per Share (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities not include in computation of net loss per share	16,465,597	8,777,475	16,465,597	8,777,475
Outstanding Options [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities not include in computation of net loss per share	6,647,199	6,730,917	6,647,199	6,730,917
Unvested Restricted Common Shares [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities not include in computation of net loss per share	1,976,199	2,040,729	1,976,199	2,040,729
ESPP [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities not include in computation of net loss per share	5,179	5,829	5,179	5,829
Assumed Conversion of the Notes [Memeber]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities not include in computation of net loss per share	7,837,020	0	7,837,020	0