Fair Value Measurements - Additional Information (Detail)		12 Months Ended
	Jul. 22, 2024 shares	Dec. 31, 2024 $ / shares shares	May 29, 2024 $ / shares	May 28, 2024 $ / shares
Common stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Issuance of common shares upon the conversion of SAFE notes | shares	2,391,418	2,391,418
Simple agreement for future equity [Member] | Equity financing [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative cap price		48.25		48.25
Discount rate on issuance of common stock		85.00%		85.00%
Simple agreement for future equity [Member] | Liquidity event [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative cap price		48.25		48.25
Discount rate on issuance of common stock		85.00%		85.00%
Simple agreement for future equity [Member] | Excluding liquidity event [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative cap price			48.25
Discount rate on issuance of common stock		85.00%	85.00%