Segment Information, Revenue by Segment (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2019 USD ($) Segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Information [Abstract]
Number of reportable segments | Segment		9
Number of geographic segments | Segment		7
Number of new segments previously included in Other category | Segment		2
Revenue by Segment [Abstract]
Revenue		$ 2,420,416	$ 2,679,008	$ 2,279,099
Other [Member]
Revenue by Segment [Abstract]
Revenue		1,621	3,423	6,300
Nu Skin [Member]
Revenue by Segment [Abstract]
Revenue		2,298,362	2,588,402	2,279,099
Nu Skin [Member] | Mainland China [Member]
Revenue by Segment [Abstract]
Revenue		722,526	886,472	716,991
Nu Skin [Member] | Americas/Pacific [Member]
Revenue by Segment [Abstract]
Revenue		349,078	385,034	342,429
Nu Skin [Member] | South Korea [Member]
Revenue by Segment [Abstract]
Revenue		329,978	373,357	361,692
Nu Skin [Member] | Southeast Asia [Member]
Revenue by Segment [Abstract]
Revenue		301,620	316,890	268,631
Nu Skin [Member] | Japan [Member]
Revenue by Segment [Abstract]
Revenue		260,039	254,939	256,085
Nu Skin [Member] | EMEA [Member]
Revenue by Segment [Abstract]
Revenue		167,165	182,394	160,275
Nu Skin [Member] | Hong Kong/Taiwan [Member]
Revenue by Segment [Abstract]
Revenue		166,335	185,893	166,696
Operating Segment [Member] | Manufacturing [Member]
Revenue by Segment [Abstract]
Revenue	[1]	121,917	90,606	0
Operating Segment [Member] | Grow Tech [Member]
Revenue by Segment [Abstract]
Revenue		137	0	0
Intersegment Member] | Manufacturing [Member]
Revenue by Segment [Abstract]
Revenue		$ 25,700	$ 23,500	$ 0

[1] The Manufacturing segment had $25.7 million, $23.5 million and zero of intersegment revenue for the years ended December 31, 2019, 2018 and 2017, respectively.  Intersegment revenue is eliminated in the consolidated financial statements, as well as the reported segment revenue in the table above.