Quarterly Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 31, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Selected Quarterly Financial Information [Abstract]
Net sales	$ 426,998	$ 394,147	$ 378,874	$ 391,047	$ 401,642	$ 398,597	$ 383,059	$ 367,199	$ 1,591,066	$ 1,550,497	$ 1,342,532
Gross profit	197,636	170,350	166,274	177,393	179,740	181,716	182,378	175,997	711,653	719,831	608,985
Net income	$ 57,438	$ 40,767	$ 123,997	$ 32,658	$ 80,784	$ 48,060	$ 54,349	$ 57,562	$ 254,860	$ 240,755	$ 85,066
Basic net income per common share	$ 0.43	$ 0.30	$ 0.92	$ 0.24	$ 0.58	$ 0.34	$ 0.38	$ 0.41	$ 1.89	$ 1.71	$ 0.60
Diluted net income per common share	$ 0.42	$ 0.30	$ 0.91	$ 0.24	$ 0.57	$ 0.34	$ 0.38	$ 0.40	$ 1.87	$ 1.69	$ 0.59