Segment Information, Segment Contribution (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Contribution [Abstract]
Operating income	$ (125,557)	$ 42,506	$ (116,735)	$ 58,570
Interest expense	6,720	5,769	14,045	10,657
Other income, net	629	376	233	3,788
Income (loss) before provision for income taxes	(131,648)	37,113	(130,547)	51,701
Operating Segment [Member]
Segment Contribution [Abstract]
Operating income	76,588	105,424	145,758	192,379
Operating Segment [Member] \| Nu Skin [Member]
Segment Contribution [Abstract]
Operating income	80,304	104,598	153,449	194,886
Operating Segment [Member] \| Americas [Member]
Segment Contribution [Abstract]
Operating income	17,379	28,853	32,355	45,103
Operating Segment [Member] \| Mainland China [Member]
Segment Contribution [Abstract]
Operating income	13,373	19,357	25,626	32,969
Operating Segment [Member] \| Southeast Asia/Pacific [Member]
Segment Contribution [Abstract]
Operating income	10,706	11,396	21,790	23,867
Operating Segment [Member] \| Japan [Member]
Segment Contribution [Abstract]
Operating income	11,704	12,508	23,710	25,416
Operating Segment [Member] \| South Korea [Member]
Segment Contribution [Abstract]
Operating income	13,323	17,391	25,506	40,966
Operating Segment [Member] \| Europe & Africa [Member]
Segment Contribution [Abstract]
Operating income	5,405	4,945	8,681	8,583
Operating Segment [Member] \| Hong Kong/Taiwan [Member]
Segment Contribution [Abstract]
Operating income	8,414	10,148	15,781	17,982
Operating Segment [Member] \| Rhyz Investments [Member]
Segment Contribution [Abstract]
Operating income	(3,716)	826	(7,691)	(2,507)
Operating Segment [Member] \| Manufacturing [Member]
Segment Contribution [Abstract]
Operating income	1,757	4,218	3,724	2,845
Operating Segment [Member] \| Rhyz Other [Member]
Segment Contribution [Abstract]
Operating income	(5,473)	(3,392)	(11,415)	(5,352)
Corporate and Other [Member]
Segment Contribution [Abstract]
Operating income	$ (202,145)	$ (62,918)	$ (262,493)	$ (133,809)

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense.

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