Net (Loss) Income per Share ("EPS") Attributable to Common Stockholders - Anti-dilutive Security not Included In Diluted per Share Calculations (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive securities	40,228,590	31,987,661	40,228,590	32,052,461
Options To Purchase Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive securities	21,201,749	18,978,531	21,201,749	19,043,331
Series B Preferred Stock (as Converted)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive securities	18,486,175		18,486,175
Redeemable Convertible Preferred Stock (as Converted)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive securities		13,009,130		13,009,130
Warrants to Purchase Preferred Stock (as Converted)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive securities	540,666		540,666