Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Net sales	$ 1,093,720	$ 525,765	$ 2,093,978	$ 1,185,435
Cost of sales	836,109	397,023	1,594,590	898,088
Gross profit	257,611	128,742	499,388	287,347
Selling, general and administrative expenses	163,629	107,960	303,975	222,299
Operating profit	93,982	20,782	195,413	65,048
Interest expense, net	3,472	3,698	6,177	8,895
Income before income taxes	90,510	17,084	189,236	56,153
Provision for income taxes	22,621	3,898	47,227	14,753
Net income	$ 67,889	$ 13,186	$ 142,009	$ 41,400
Net income per common share:
Basic (in usd per share)	$ 2.69	$ 0.52	$ 5.63	$ 1.65
Diluted (in usd per share)	$ 2.67	$ 0.52	$ 5.60	$ 1.64
Weighted average common shares outstanding:
Basic (in shares)	25,275	25,150	25,230	25,108
Diluted (in shares)	25,385	25,219	25,351	25,177