Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Consolidated Statements of Income [Abstract]
Revenue	$ 430,145	$ 498,772	$ 1,286,532	$ 1,480,491
Cost of sales	128,682	206,505	383,828	475,635
Gross profit	301,463	292,267	902,704	1,004,856
Operating expenses:
Selling expenses	167,612	187,750	486,617	561,039
General and administrative expenses	115,620	130,882	358,107	401,825
Restructuring and impairment expenses	0	0	156,484	9,787
Total operating expenses	283,232	318,632	1,001,208	972,651
Operating income (loss)	18,231	(26,365)	(98,504)	32,205
Interest expense	6,500	7,535	20,545	18,192
Other income (expense), net	1,567	(551)	1,800	3,237
Income (loss) before provision for income taxes	13,298	(34,451)	(117,249)	17,250
Provision (benefit) for income taxes	4,996	2,504	(6,760)	15,937
Net income (loss)	$ 8,302	$ (36,955)	$ (110,489)	$ 1,313
Net income (loss) per share (Note 6):
Basic (in dollars per share)	$ 0.17	$ (0.74)	$ (2.23)	$ 0.03
Diluted (in dollars per share)	$ 0.17	$ (0.74)	$ (2.23)	$ 0.03
Weighted-average common shares outstanding:
Basic (in shares)	49,707	49,859	49,645	49,812
Diluted (in shares)	49,733	49,859	49,645	50,029