Stock-Based Compensation - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Shares, Outstanding at Beginning Balance	1,112,275
Number of shares, Assumed in reverse recapitalization	14,214
Number of Shares, Granted	902,331
Number of Shares, Exercised	0
Number of Shares, Cancelled	0
Number of Shares, Outstanding at Ending Balance	2,028,820	1,112,275
Number of shares, Vested and expected to vest	2,028,820
Number of Shares, Exercisable	670,992
Weighted- Average Exercise Price, Outstanding at Beginning Balance	$ 7.5
Weighted- Average Exercise Price, Assumed in reverse recapitalization	8.84
Weighted- Average Exercise Price, Granted	19.37
Weighted- Average Exercise Price, Exercised	0
Weighted- Average Exercise Price, Cancelled	0
Weighted- Average Exercise Price, Outstanding at Ending Balance	12.5	$ 7.5
Weighted- Average Exercise Price, Vested and expected to vest	12.5
Weighted- Average Exercise Price, Exercisable	$ 7.08
Weighted Average Remaining Contractual Term, Outstanding	8 years	6 years 10 months 13 days
Weighted Average Remaining Contractual Term, Vested and expected to vest	8 years
Weighted Average Remaining Contractual Term, Exercisable	5 years 4 months 6 days
Aggregate Intrinsic Value, Outstanding Beginning Balance	$ 10,712
Aggregate Intrinsic Value, Outstanding Ending Balance	10,620	$ 10,712
Aggregate Intrinsic Value, Vested and expected to vest	10,620
Aggregate Intrinsic Value, Exercisable	$ 6,707