Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Consolidated Statements of Income [Abstract]
Revenue	$ 364,211	$ 430,145	$ 1,114,839	$ 1,286,532
Cost of sales	107,488	128,682	345,422	383,828
Gross profit	256,723	301,463	769,417	902,704
Operating expenses:
Selling expenses	130,264	167,612	377,038	486,617
General and administrative expenses	104,817	115,620	324,746	358,107
Restructuring and impairment expenses	0	0	25,114	156,484
Total operating expenses	235,081	283,232	726,898	1,001,208
Operating income (loss)	21,642	18,231	42,519	(98,504)
Interest expense	4,145	6,500	9,954	20,545
Gain on sale of business	0	0	176,162	0
Other income (expense), net	(1,503)	1,567	(30,721)	1,800
Income (loss) before provision for income taxes	15,994	13,298	178,006	(117,249)
Provision (benefit) for income taxes	(1,085)	4,996	32,293	(6,760)
Net income (loss)	$ 17,079	$ 8,302	$ 145,713	$ (110,489)
Net income (loss) per share (Note 7):
Basic (in dollars per share)	$ 0.35	$ 0.17	$ 2.94	$ (2.23)
Diluted (in dollars per share)	$ 0.34	$ 0.17	$ 2.91	$ (2.23)
Weighted-average common shares outstanding:
Basic (in shares)	49,398	49,707	49,533	49,645
Diluted (in shares)	50,310	49,733	50,158	49,645