Segment Information, Revenue by Segment (Details) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Segment	Jun. 30, 2020 USD ($)
Segment Information [Abstract]
Number of reportable segments | Segment				10
Number of geographic segments | Segment				7
Number of Rhyz Investments segments | Segment				3
Revenue by Segment [Abstract]
Revenue		$ 704,055	$ 612,366	$ 1,381,081	$ 1,130,394
Other [Member]
Revenue by Segment [Abstract]
Revenue		755	(85)	1,460	688
Operating Segment [Member] | Nu Skin [Member]
Revenue by Segment [Abstract]
Revenue		655,686	574,138	1,286,554	1,065,015
Operating Segment [Member] | Mainland China [Member]
Revenue by Segment [Abstract]
Revenue		154,182	146,332	303,775	284,028
Operating Segment [Member] | Americas/Pacific [Member]
Revenue by Segment [Abstract]
Revenue		151,730	127,919	301,195	202,492
Operating Segment [Member] | South Korea [Member]
Revenue by Segment [Abstract]
Revenue		88,604	76,915	169,735	152,634
Operating Segment [Member] | EMEA [Member]
Revenue by Segment [Abstract]
Revenue		83,115	50,776	159,295	86,179
Operating Segment [Member] | Southeast Asia [Member]
Revenue by Segment [Abstract]
Revenue		70,751	66,829	138,336	136,415
Operating Segment [Member] | Japan [Member]
Revenue by Segment [Abstract]
Revenue		68,020	68,291	137,884	129,591
Operating Segment [Member] | Hong Kong/Taiwan [Member]
Revenue by Segment [Abstract]
Revenue		38,529	37,161	74,874	72,988
Operating Segment [Member] | Rhyz Investments [Member]
Revenue by Segment [Abstract]
Revenue		48,369	38,228	94,527	65,379
Operating Segment [Member] | Manufacturing [Member]
Revenue by Segment [Abstract]
Revenue	[1]	48,140	37,918	94,125	65,065
Operating Segment [Member] | Grow Tech [Member]
Revenue by Segment [Abstract]
Revenue		191	310	364	314
Operating Segment [Member] | Rhyz Other [Member]
Revenue by Segment [Abstract]
Revenue		38	0	38	0
Intersegment [Member] | Manufacturing [Member]
Revenue by Segment [Abstract]
Revenue		$ 23,200	$ 6,900	$ 40,600	$ 13,300

[1] The Manufacturing segment had $23.2 million and $6.9 million of intersegment revenue for the three months ended June 30, 2021 and 2020, respectively, and $40.6 million and $13.3 million for the six months ended June 30, 2021 and 2020, respectively. Intersegment revenue is eliminated in the consolidated financial statements, as well as the reported segment revenue in the table above.