CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenues	$ 1,045,717	$ 985,094	$ 3,002,250	$ 2,609,823
Cost of sales	464,081	443,792	1,322,937	1,245,864
Gross profit	581,636	541,302	1,679,313	1,363,959
Selling, general and administrative expenses	307,784	277,239	852,044	733,255
Income from operations	273,852	264,063	827,269	630,704
Foreign currency losses, net	(1,770)	(393)	(1,622)	(1,115)
Interest income	506	31	1,225	219
Interest expense	(39,207)	(34,142)	(124,907)	(86,357)
Other income (expense), net	24	16	448	(512)
Income before income taxes	233,405	229,575	702,413	542,939
Income tax expense	56,380	60,226	163,433	140,515
Net income	$ 177,025	$ 169,349	$ 538,980	$ 402,424
Net income per common share:
Basic (in dollars per share)	$ 2.90	$ 2.75	$ 8.74	$ 6.59
Diluted (in dollars per share)	$ 2.87	$ 2.72	$ 8.65	$ 6.51
Weighted average common shares outstanding:
Basic (in shares)	61,143	61,693	61,670	61,042
Diluted (in shares)	61,615	62,367	62,280	61,840