Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net sales	$ 1,000,258	$ 659,670
Cost of sales	758,481	501,065
Gross profit	241,777	158,605
Selling, general and administrative expenses	140,346	114,339
Operating profit	101,431	44,266
Interest expense, net	2,705	5,197
Income before income taxes	98,726	39,069
Provision for income taxes	24,606	10,855
Net income	$ 74,120	$ 28,214
Net income per common share:
Basic (in usd per share)	$ 2.94	$ 1.13
Diluted (in usd per share)	$ 2.93	$ 1.12
Weighted average common shares outstanding:
Basic (in shares)	25,193	25,075
Diluted (in shares)	25,325	25,143