Changes in Deferred Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue From Contract With Customer [Abstract]
Deferred revenue	$ 3,268	$ 2,655
Deferral of revenue billed in current period, net of recognition	542	504
Recognition of revenue deferred in prior periods	(1,085)	(714)
Deferred revenue	$ 2,725	$ 2,445