SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
SEGMENT INFORMATION [Abstract]
Number of geographic regions			5
Number of product lines			3
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 424,426	$ 388,362	$ 820,271	$ 752,486
Revenue from External Customer [Line Items]
Revenue	424,426	388,362	820,271	752,486
North Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	183,097	164,105	362,531	334,966
Revenue from External Customer [Line Items]
Revenue	183,097	164,105	362,531	334,966
Greater China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	79,404	80,642	147,997	138,327
Revenue from External Customer [Line Items]
Revenue	79,404	80,642	147,997	138,327
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	59,805	62,389	115,684	124,843
Revenue from External Customer [Line Items]
Revenue	59,805	62,389	115,684	124,843
South Asia/Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	59,212	45,938	109,158	81,282
Revenue from External Customer [Line Items]
Revenue	59,212	45,938	109,158	81,282
Europe - By Region [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	42,908	35,288	84,901	73,068
Revenue from External Customer [Line Items]
Revenue	42,908	35,288	84,901	73,068
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	115,067	113,295	226,900	221,988
Long-lived assets	11,878		11,878		12,473
Revenue from External Customer [Line Items]
Revenue	115,067	113,295	226,900	221,988
South Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	68,030	50,810	135,631	112,978
Long-lived assets	12,255		12,255		9,396
Revenue from External Customer [Line Items]
Revenue	68,030	50,810	135,631	112,978
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	49,621	52,738	96,851	105,780
Long-lived assets	87,452		87,452		84,829
Revenue from External Customer [Line Items]
Revenue	49,621	52,738	96,851	105,780
Europe - By Significant Geographic Area [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	37,126	29,156	72,757	60,521
Long-lived assets	11,727		11,727		11,646
Revenue from External Customer [Line Items]
Revenue	37,126	29,156	72,757	60,521
Mainland China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	38,110	20,558	69,166	40,939
Long-lived assets	2,500		2,500		2,697
Revenue from External Customer [Line Items]
Revenue	38,110	20,558	69,166	40,939
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	28,999	28,633	54,211	52,776
Long-lived assets	1,843		1,843		2,200
Revenue from External Customer [Line Items]
Revenue	28,999	28,633	54,211	52,776
Nu Skin [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	227,931	239,886
Revenue from External Customer [Line Items]
Revenue	227,931	239,886
Pharmanex [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	194,104	145,801
Revenue from External Customer [Line Items]
Revenue	194,104	145,801
Other Product Lines [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	2,391	2,675
Revenue from External Customer [Line Items]
Revenue	$ 2,391	$ 2,675