Segment Information, Depreciation and Amortization and Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Summarized Financial Information [Abstract]
Depreciation and amortization	$ 19,052	$ 21,235	$ 38,659	$ 40,142
Capital expenditures	15,449	15,777	29,214	28,429
Mainland China [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	2,909	3,444	6,025	6,931
Capital expenditures	1,033	1,029	2,714	2,898
Americas/Pacific [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	206	279	420	493
Capital expenditures	473	240	747	429
South Korea [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	1,358	1,576	2,882	3,243
Capital expenditures	30	44	79	44
Southeast Asia [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	462	564	939	1,123
Capital expenditures	225	144	319	195
Japan [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	957	900	2,005	1,815
Capital expenditures	946	72	1,118	383
Hong Kong/Taiwan [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	537	321	1,053	644
Capital expenditures	1,091	116	1,554	598
EMEA [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	272	175	712	351
Capital expenditures	42	42	76	77
Nu Skin [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	6,701	7,259	14,036	14,600
Capital expenditures	3,840	1,687	6,607	4,624
Corporate and Other [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	9,775	10,927	19,598	19,450
Capital expenditures	7,964	7,636	14,375	14,015
Manufacturing [Member] | Operating Segments [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	1,631	2,821	3,205	5,646
Capital expenditures	1,579	719	3,181	1,468
Grow Tech [Member] | Operating Segments [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	945	228	1,820	446
Capital expenditures	$ 2,066	$ 5,735	$ 5,051	$ 8,322