Summary of Unvested Stock Option Activity (Detail) - Stock Options	9 Months Ended
	Sep. 30, 2023 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Beginning Balance | shares	0
Vested | shares	0
Ending Balance | shares	0
Beginning Balance | $ / shares	$ 1,229.99
Vested | $ / shares	1,229.99
Ending Balance | $ / shares	$ 0