GOODWILL AND OTHER LONG-LIVED ASSETS (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Goodwill and Intangible Assets [Line Items]
Non-cash goodwill impairment charge			$ 11,464,000
Goodwill	$ 165,231,000		165,231,000		$ 176,062,000
Long-lived asset impairments	3,861,000	$ 3,045,000	23,217,000	$ 3,045,000
Purchase price of sold acquisition	7,117,000	$ 0	7,117,000	$ 0
Lucky Vitamin Reporting Unit [Member]
Goodwill and Intangible Assets [Line Items]
Non-cash goodwill impairment charge			11,500,000
Goodwill	0		0
U.S. and Canada
Goodwill and Intangible Assets [Line Items]
Non-cash goodwill impairment charge			11,464,000
Goodwill	9,251,000		9,251,000		$ 20,715,000
U.S. and Canada | Lucky Vitamin Reporting Unit [Member]
Goodwill and Intangible Assets [Line Items]
Goodwill, percentage of fair value in excess of carrying value					20.00%
Trade Names [Member] | Lucky Vitamin Reporting Unit [Member]
Goodwill and Intangible Assets [Line Items]
Long-lived asset impairments			4,200,000
Property And Equipment [Member] | Lucky Vitamin Reporting Unit [Member]
Goodwill and Intangible Assets [Line Items]
Long-lived asset impairments			$ 3,700,000
Goodwill [Member]
Goodwill and Intangible Assets [Line Items]
Assumed period of cash flows			8 years
Weighted average cost of capital			18.00%
Long-lived asset impairments [Member] | U.S. and Canada
Goodwill and Intangible Assets [Line Items]
Long-lived asset impairments			$ 19,400,000
Lucky Vitamin [Member]
Goodwill and Intangible Assets [Line Items]
Gain (loss) on sale of investments			1,700,000
Purchase price of sold acquisition	$ 7,100,000		7,100,000
Lucky Vitamin [Member] | Property, Plant and Equipment [Member]
Goodwill and Intangible Assets [Line Items]
Long-lived asset impairments			$ 3,900,000