Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Net sales	$ 1,165,309	$ 827,729	$ 3,259,287	$ 2,013,164
Cost of sales	913,728	606,290	2,508,318	1,504,378
Gross profit	251,581	221,439	750,969	508,786
Selling, general and administrative expenses	162,557	127,006	466,532	349,305
Operating profit	89,024	94,433	284,437	159,481
Interest expense, net	4,667	1,948	10,844	10,843
Income before income taxes	84,357	92,485	273,593	148,638
Provision for income taxes	20,956	24,138	68,183	38,891
Net income	$ 63,401	$ 68,347	$ 205,410	$ 109,747
Net income per common share:
Basic (in usd per share)	$ 2.51	$ 2.72	$ 8.14	$ 4.37
Diluted (in usd per share)	$ 2.49	$ 2.70	$ 8.10	$ 4.35
Weighted average common shares outstanding:
Basic (in shares)	25,286	25,162	25,247	25,125
Diluted (in shares)	25,417	25,313	25,371	25,220