Net (Loss) Income per Common Share - Computation of Basic and Diluted Net (Loss) Income per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator:
Net (loss) income	$ (25,382)	$ 9,555	$ 5,623	$ (7,726)	$ 25,095	$ 15,901	$ (10,204)	$ 33,270
Numerator for basic net (loss) income per common share	(25,382)			(7,726)			(10,204)	33,270
Numerator for diluted net (loss) income per common share	$ (25,382)			$ (7,726)			$ (10,204)	$ 33,270
Denominator:
Denominator for basic net (loss) income per common share - adjusted weighted-average shares	71,672			73,992			72,070	74,946
Effect of dilutive securities:
Unvested restricted stock and stock units								533
Dilutive potential common shares								533
Denominator for diluted net (loss) income per common share - adjusted weighted-average shares	71,672			73,992			72,070	75,479
Basic net (loss) income per common share	$ (0.35)			$ (0.10)			$ (0.14)	$ 0.44
Diluted net (loss) income per common share	$ (0.35)			$ (0.10)			$ (0.14)	$ 0.44