CONDENSED 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]
Revenue	$ 453,333	$ 394,189	$ 870,933	$ 734,858
Cost of sales	131,651	100,482	246,965	192,604
Gross profit	321,682	293,707	623,968	542,254
Selling, general, and administrative	272,718	232,273	519,917	428,021
Income from operations	48,964	61,434	104,051	114,233
Other expense
Interest expense	(164)	(67)	(259)	(44)
Other expense	(4)	(22)	(20)	(3)
Total other (expense) income	(168)	(89)	(279)	(47)
Income from operations before income taxes	48,796	61,345	103,772	114,186
Provision for income taxes	9,683	14,382	22,878	26,160
Net income	$ 39,113	$ 46,963	$ 80,894	$ 88,026
Basic earnings per share
Earnings per share - basic (in dollars per share)	$ 3.44	$ 4.00	$ 7.06	$ 7.48
Diluted earnings per share
Earnings per share - diluted (in dollars per share)	$ 3.42	$ 3.96	$ 7.01	$ 7.42
Weighted average shares outstanding -
Basic (in shares)	11,354	11,753	11,455	11,762
Diluted (in shares)	11,435	11,858	11,534	11,869
Cash dividends declared per share (in dollars per share)	$ 1.64	$ 1.42	$ 3.28	$ 2.84