Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales	$ 2,055,818	$ 1,787,833	$ 3,468,468	$ 2,848,579
Cost of sales	1,389,014	1,236,148	2,354,474	1,995,762
Gross profit	666,804	551,685	1,113,994	852,817
Selling and administrative expenses	247,916	213,099	459,382	385,200
Operating income	418,888	338,586	654,612	467,617
Interest and other non-operating expenses, net	8,523	1,963	13,722	4,545
Income before income taxes and equity earnings	410,365	336,623	640,890	463,072
Provision for income taxes	103,160	76,985	154,482	104,854
Equity earnings in unconsolidated investments, net	78	57	136	132
Net income	$ 307,283	$ 259,695	$ 486,544	$ 358,350
Earnings per share:
Basic (in dollars per share)	$ 7.71	$ 6.47	$ 12.16	$ 8.92
Diluted (in dollars per share)	$ 7.63	$ 6.37	$ 12.03	$ 8.78
Weighted average shares outstanding: [Abstract]
Basic (in shares)	39,660	40,125	39,795	40,169
Diluted (in shares)	40,064	40,745	40,231	40,800
Cash dividends declared per common share	$ 1.00	$ 0.80	$ 1.80	$ 1.38