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Summary of Significant Accounting Policies - Schedule of Common Share Equivalents Included from Computation of Net Loss Per Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2023
Sep. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
Earnings Per Share [Abstract]              
Net loss $ (9,906) $ (65,760) $ (10,772) $ (76,532) $ (86,438) $ (116,537) $ (87,966)
Net loss per share, basic $ (0.33) $ (2.74)   $ (3.99) $ (3.79) $ (4.73) $ (6.16)
Net loss per share, diluted $ (0.33) $ (2.74)   $ (3.99) $ (3.79) $ (4.73) $ (6.16)
Weighted-average number of common shares, basic           24,619,197 14,285,254
Weighted-average number of common shares, diluted           24,619,197 14,285,254