Fourth Quarter Financial Data (Unaudited) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Sales	$ 209,996	$ 168,065	$ 702,799	$ 498,830	$ 362,305
Gross profit	113,729	90,556	376,215	260,520	194,212
Operating expenses	100,991	71,894	353,562	268,477	210,934
Operating income	12,738	18,662	22,653	(7,957)	(16,722)
Net income	$ 10,808	$ 17,000	$ 15,566	$ (34,382)	$ (24,753)
Basic net income per share (in dollars per share)	$ 0.17	$ 0.27	$ 0.25	$ (0.56)	$ (0.42)
Diluted net income per share (in dollars per share)	$ 0.16	$ 0.22	$ 0.24	$ (0.56)	$ (0.42)