Segment Information, Segment Contribution (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Contribution [Abstract]
Operating income	$ 233,992	$ 257,564	$ 267,426
Other income (expense)	(1,533)	(1,332)	(12,254)
Income before provision for income taxes	232,459	256,232	255,172
Operating Segment [Member]
Segment Contribution [Abstract]
Operating income	543,178	571,777	535,292
Operating Segment [Member] | Nu Skin [Member]
Segment Contribution [Abstract]
Operating income	610,552	573,039	539,108
Operating Segment [Member] | Mainland China [Member]
Segment Contribution [Abstract]
Operating income	151,645	181,024	191,570
Operating Segment [Member] | Americas [Member]
Segment Contribution [Abstract]
Operating income	116,265	86,386	52,135
Operating Segment [Member] | South Korea [Member]
Segment Contribution [Abstract]
Operating income	114,034	100,933	99,892
Operating Segment [Member] | Southeast Asia/Pacific [Member]
Segment Contribution [Abstract]
Operating income	81,779	87,753	90,666
Operating Segment [Member] | EMEA [Member]
Segment Contribution [Abstract]
Operating income	41,988	24,078	10,195
Operating Segment [Member] | Japan [Member]
Segment Contribution [Abstract]
Operating income	67,511	68,027	61,081
Operating Segment [Member] | Hong Kong/Taiwan [Member]
Segment Contribution [Abstract]
Operating income	37,330	33,466	33,569
Operating Segment [Member] | Rhyz Investments [Member]
Segment Contribution [Abstract]
Operating income	(67,374)	(1,262)	(3,816)
Operating Segment [Member] | Manufacturing [Member]
Segment Contribution [Abstract]
Operating income	18,346	21,168	15,693
Operating Segment [Member] | Grow Tech [Member]
Segment Contribution [Abstract]
Operating income	(83,907)	(22,430)	(19,509)
Operating Segment [Member] | Rhyz Other [Member]
Segment Contribution [Abstract]
Operating income	(1,813)	0	0
Corporate and Other [Member]
Segment Contribution [Abstract]
Operating income	$ (309,186)	$ (314,213)	$ (267,866)