Net Loss Per Share - Computation of Denominators Used in Net Loss per Share (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Basic:
Weighted average common shares outstanding - Basic	54,235,695	53,726,123	54,038,239	53,616,753
Diluted:
Weighted average common shares outstanding - Basic	54,235,695	53,726,123	54,038,239	53,616,753
Common stock equivalents			0
Denominator for diluted net loss per share	54,235,695	53,726,123	54,038,239	53,616,753