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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2018	Jul. 31, 2018
Entity Information [Line Items]
Entity Registrant Name	NU SKIN ENTERPRISES INC
Entity Central Index Key	0001021561
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Common Class A [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		55,530,464

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 402,031	$ 426,399
Current investments	8,200	11,847
Accounts receivable	50,180	33,196
Inventories, net	283,730	253,454
Prepaid expenses and other	70,898	52,893
Total current assets	815,039	777,789
Property and equipment, net	503,452	464,587
Goodwill	187,423	114,954
Other intangible assets, net	95,887	67,647
Other assets	144,562	164,895
Total assets	1,746,363	1,589,872
Current liabilities:
Accounts payable	58,920	50,341
Accrued expenses	290,653	319,189
Current portion of long-term debt	97,481	77,840
Total current liabilities	447,054	447,370
Long-term debt	370,525	310,790
Other liabilities	125,250	127,116
Total liabilities	942,829	885,276
Commitments and contingencies (Note 10)
Stockholders' equity:
Class A common stock - 500 million shares authorized, $.001 par value, 90.6 million shares issued	91	91
Additional paid-in capital	532,996	466,349
Treasury stock, at cost - 35.0 million and 37.9 million shares	(1,296,628)	(1,304,694)
Accumulated other comprehensive loss	(75,460)	(66,318)
Retained earnings	1,642,535	1,609,168
Total stockholders' equity	803,534	704,596
Total liabilities and stockholders' equity	$ 1,746,363	$ 1,589,872

Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares shares in Millions	Jun. 30, 2018	Dec. 31, 2017
Stockholders' equity:
Common stock, shares authorized (in shares)	500.0	500.0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares issued (in shares)	90.6	90.6
Treasury stock (in shares)	35.0	37.9

Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Consolidated Statements of Income (Unaudited) [Abstract]
Revenue	$ 704,190	$ 550,101	$ 1,320,409	$ 1,049,200
Cost of sales	168,549	121,521	314,830	232,787
Gross profit	535,641	428,580	1,005,579	816,413
Operating expenses:
Selling expenses	272,757	228,353	530,459	437,361
General and administrative expenses	180,120	135,488	333,366	268,051
Total operating expenses	452,877	363,841	863,825	705,412
Operating income	82,764	64,739	141,754	111,001
Other income (expense), net	(11,165)	(2,731)	(9,958)	(7,298)
Income before provision for income taxes	71,599	62,008	131,796	103,703
Provision for income taxes	20,638	19,967	45,296	34,173
Net income	$ 50,961	$ 42,041	$ 86,500	$ 69,530
Net income per share (Note 2):
Basic (in dollars per share)	$ 0.92	$ 0.79	$ 1.58	$ 1.32
Diluted (in dollars per share)	$ 0.90	$ 0.77	$ 1.53	$ 1.28
Weighted-average common shares outstanding:
Basic (in shares)	55,608	52,929	54,807	52,804
Diluted (in shares)	56,713	54,839	56,430	54,466

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net income	$ 50,961	$ 42,041	$ 86,500	$ 69,530
Other comprehensive income, net of tax:
Foreign currency translation adjustment, net of taxes of $(558) and $1,901 for the three months ended June 30, 2018 and 2017, respectively, and $296 and $1,679 for the six months ended June 30, 2018 and 2017, respectively	(20,047)	81	(9,000)	9,776
Net unrealized gains/(losses) on foreign currency cash flow hedges, net of taxes of $(10) and $(114) for the three months ended June 30, 2018 and 2017, respectively, and $18 and $99 for the six months ended June 30, 2018 and 2017, respectively	87	207	(160)	(180)
Reclassification adjustment for realized losses/(gains) in current earnings, net of taxes of $3 and $143 for the three months ended June 30, 2018 and 2017, respectively, and $(2) and $120 for the six months ended June 30, 2018 and 2017, respectively	(26)	(260)	18	(217)
Total other comprehensive income	(19,986)	28	(9,142)	9,379
Comprehensive income	$ 30,975	$ 42,069	$ 77,358	$ 78,909

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other comprehensive income, net of tax:
Foreign currency translation adjustment, tax	$ (558)	$ 1,901	$ 296	$ 1,679
Net unrealized gains/(losses) on foreign currency cash flow hedges, tax	(10)	(114)	18	99
Reclassification adjustment for realized losses/(gains) in current earnings, tax	$ 3	$ 143	$ (2)	$ 120

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 86,500	$ 69,530
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	40,142	35,080
Equity method earnings	(43)	(358)
Gain on step acquisitions	(13,644)	0
Loss on extinguishment of debt	7,220	0
Foreign currency losses	10,194	(256)
Stock-based compensation	13,267	7,581
Deferred taxes	3,023	5,390
Changes in operating assets and liabilities:
Accounts receivable	(6,775)	(2,812)
Inventories, net	(16,743)	8,706
Prepaid expenses and other	(19,676)	(15,140)
Other assets	(546)	(2,567)
Accounts payable	1,040	(4,357)
Accrued expenses	(45,363)	(21,607)
Other liabilities	(6,663)	4,839
Net cash provided by operating activities	51,933	84,029
Cash flows from investing activities:
Purchases of property and equipment	(28,429)	(27,751)
Proceeds of investment sales	7,964	7,741
Purchases of investments	(4,722)	(4,716)
Acquisitions (net of cash acquired)	(28,311)	(25,095)
Investment in equity investee	(4,750)	0
Net cash used in investing activities	(58,248)	(49,821)
Cash flows from financing activities:
Exercise of employee stock options and taxes paid related to the net shares settlement of stock awards	5,951	7,795
Payments on long-term debt	(514,177)	(64,495)
Payment of cash dividends	(40,091)	(38,042)
Payment of debt issuance costs	(7,243)	0
Proceeds from debt	582,398	67,000
Repurchases of shares of common stock	(35,823)	(22,135)
Net cash (used in) in financing activities	(8,985)	(49,877)
Effect of exchange rate changes on cash	(9,068)	3,525
Net (decrease) in cash and cash equivalents	(24,368)	(12,144)
Cash and cash equivalents, beginning of period	426,399	357,246
Cash and cash equivalents, end of period	$ 402,031	$ 345,102

THE COMPANY	6 Months Ended
THE COMPANY	Jun. 30, 2018
THE COMPANY [Abstract]
THE COMPANY	1. THE COMPANY Nu Skin Enterprises, Inc. (the "Company") is a leading, global direct selling company that develops and distributes premium-quality, innovative personal care products and nutritional supplements that are sold worldwide under the Nu Skin and Pharmanex brands and a small number of other products and services. Over the last several years, the Company has introduced new Pharmanex nutritional supplements and Nu Skin personal care products under its ageLOC anti-aging brand. The Company reports revenue from seven segments: Mainland China; South Korea; Southeast Asia, which consists of Brunei, French Polynesia, Indonesia, Malaysia, the Philippines, Singapore, Thailand and Vietnam; Americas/Pacific, which consists of Australia, Canada, Latin America, New Caledonia, New Zealand and the United States; Japan; Hong Kong/Taiwan; and Europe, Middle East and Africa ("EMEA"), which consists of several markets in Europe as well as Israel, Russia, Ukraine and South Africa (the Company's subsidiaries operating in these countries in each segment are collectively referred to as the "Subsidiaries"). The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. The unaudited consolidated financial statements include the accounts of the Company and its Subsidiaries. All significant intercompany accounts and transactions are eliminated in consolidation. In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments, consisting of normal recurring adjustments, considered necessary for a fair statement of the Company's financial information as of June 30, 2018, and for the three- and six-month periods ended June 30, 2018 and 2017. The results of operations of any interim period are not necessarily indicative of the results of operations to be expected for the fiscal year. The consolidated balance sheet as of December 31, 2017 has been prepared using information from the audited financial statements at that date. For further information, refer to the consolidated financial statements and accompanying footnotes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017.

NET INCOME PER SHARE	6 Months Ended
NET INCOME PER SHARE	Jun. 30, 2018
NET INCOME PER SHARE [Abstract]
NET INCOME PER SHARE	2. NET INCOME PER SHARE Net income per share is computed based on the weighted-average number of common shares outstanding during the periods presented. Additionally, diluted earnings per share data gives effect to all potentially dilutive common shares that were outstanding during the periods presented. For the three-month periods ended June 30, 2018 and 2017, stock options of 0.3 million and 0.2 million, respectively, and for the six-month periods ended June 30, 2018 and 2017, stock options of 0.9 million and 0.6 million, respectively, were excluded from the calculation of diluted earnings per share because they were anti-dilutive.

DIVIDENDS PER SHARE	6 Months Ended
DIVIDENDS PER SHARE	Jun. 30, 2018
DIVIDENDS PER SHARE [Abstract]
DIVIDENDS PER SHARE	3. DIVIDENDS PER SHARE In February and April 2018, the Company's board of directors declared a quarterly cash dividend of $0.365 per share. These quarterly cash dividends of $19.8 and $20.3 million were paid on March 14, 2018 and June 13, 2018 to stockholders of record on February 26, 2018 and May 25, 2018. In July 2018, the Company's board of directors declared a quarterly cash dividend of $0.365 per share to be paid on September 12, 2018 to stockholders of record on August 31, 2018.

DERIVATIVE FINANCIAL INSTRUMENTS

6 Months Ended

Jun. 30, 2018

DERIVATIVE FINANCIAL INSTRUMENTS [Abstract]

DERIVATIVE FINANCIAL INSTRUMENTS

4. DERIVATIVE FINANCIAL INSTRUMENTS

The Company enters into non-designated foreign currency derivatives, primarily comprised of foreign currency forward contracts, for which hedge accounting does not apply. The changes in the fair market value of these non-designated derivatives are included in other income/expense in the Company's consolidated statements of income. The Company uses non-designated foreign currency derivatives to hedge foreign-currency-denominated intercompany transactions and to partially mitigate the impact of foreign-currency fluctuations. The fair value of the non-designated foreign currency derivatives is based on third-party quotes.

The following table summarizes gains (losses) related to derivative instruments not designated as hedging instruments during the three- and six-month periods ended June 30, 2018 and 2017 (U.S. dollars in thousands):

Derivatives not designated as hedging instruments:	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income
		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2018		2017		2018		2017

Foreign currency contracts	Other income (expense)	$	—	$	—	$	—	$	(485	)

The Company designates as cash-flow hedges those foreign currency forward contracts it enters to hedge forecasted intercompany transactions that are subject to foreign currency exposures. Changes in the fair value of these forward contracts designated as cash-flow hedges are recorded as a component of accumulated other comprehensive income (loss) within shareholders' equity (deficit), and are recognized in the consolidated statement of income during the period which approximates the time the hedged transaction is settled.

As of June 30, 2018, the Company held no forward contracts designated as foreign currency cash flow hedges compared to notional amounts of 2.2 billion Japanese yen and 1.0 million Euros ($19.6 million and $1.1 million, respectively) as of June 30, 2017, to hedge forecasted foreign-currency-denominated intercompany transactions. The fair value of these hedges were zero and $0.3 million as of June 30, 2018 and 2017, respectively.

The following table summarizes gains (losses) related to derivative instruments recorded in other comprehensive income (loss) during the three- and six-month periods ended June 30, 2018 and 2017 (U.S. dollars in thousands):

Derivatives designated as hedging instruments:	Amount of Gain (Loss) Recognized in Other Comprehensive Loss
	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2018		2017		2018			2017

Foreign currency forward contracts related to intercompany license fee, product sales, and selling expense hedges	$	87	$	207	$	(160	)	$	(180	)

The following table summarizes gains (losses) relating to derivative instruments reclassified from accumulated other comprehensive loss into income during the three- and six-month periods ended June 30, 2018 and 2017 (U.S. dollars in thousands):

Derivatives designated as hedging instruments:	Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income	Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income
		Three Months Ended							Six Months Ended
		June 30,							June 30,
		2018				2017			2018			2017

Foreign currency forward contracts related to intercompany license fees and product sales hedges	Revenue		$	(26	)		$	134		$	18		$	109
Foreign currency forward contracts related to intercompany selling expense hedges	Selling expenses		$	—			$	269		$	—		$	228

As of June 30, 2018 and December 31, 2017, there were zero and $0.1 million, respectively, of unrealized gains/(losses) included in accumulated other comprehensive loss related to foreign currency cash flow hedges. The remaining $75.5 million and $66.4 million as of June 30, 2018 and December 31, 2017, respectively, in accumulated other comprehensive loss are related to cumulative translation adjustments. The Company assesses hedge effectiveness at least quarterly. During the three- and six- month periods ended June 30, 2018 and 2017, all hedges were determined to be effective.

The Company reports its derivatives at fair value as either other current assets or accrued expenses within its consolidated balance sheet. See Note 12 - Fair Value.

REPURCHASES OF COMMON STOCK	6 Months Ended
REPURCHASES OF COMMON STOCK	Jun. 30, 2018
REPURCHASES OF COMMON STOCK [Abstract]
REPURCHASES OF COMMON STOCK	5. REPURCHASES OF COMMON STOCK During the three-month periods ended June 30, 2018 and 2017, the Company repurchased 0.2 million and 0.3 million shares of its Class A common stock under its open market stock repurchase plan for $18.4 million and $15.3 million, respectively. During the six-month periods ended June 30, 2018 and June 30, 2017, the Company repurchased 0.5 million and 0.4 million shares of its Class A common stock under its open market repurchase plans for $35.8 million and $22.1 million, respectively. As of June 30, 2018, $92.2 million was available for repurchases under the Company's open market stock repurchase plan. In July 2018, the previous stock repurchase plan was terminated and replaced by a new repurchase plan with an initial authorization amount of $500 million.

SEGMENT INFORMATION

6 Months Ended

Jun. 30, 2018

SEGMENT INFORMATION [Abstract]

SEGMENT INFORMATION

6. SEGMENT INFORMATION

As a result of the Company's management changes in the first quarter of 2017, the Company concluded that the Chief Operating Decision Maker, as defined in ASC 280, is now comprised of the CEO, President and CFO. This change required the Company to reevaluate its determination of operating segments. The Company's operating segments are based on geographic regions that generate revenue and hold its long-lived assets. The Company sells and distributes its products through a global network of customers and sales leaders in approximately 50 markets. The Company has divided these markets into seven operating segments, which are the Company's reportable segments: Mainland China, Hong Kong/Taiwan, South Korea, Japan, Southeast Asia, Americas/Pacific and EMEA. The reportable segments generate revenue from the sale of personal care products and nutritional supplements under the Nu Skin and Pharmanex brands, have similar business characteristics and align with how the CODM function began assessing performance and allocating resources in the first quarter of 2017. The Other category includes the manufacturing and product-packaging companies that the Company acquired during the first quarter of 2018.

Segment information for the three- and six-month periods ended June 30, 2017 has been recast to reflect the move of the Pacific components from the "Southeast Asia/Pacific" operating segment to the "Americas/Pacific" operating segment. Consolidated financial information is not affected.

Profitability by segment as reported under US GAAP is driven primarily by the Company's transfer pricing policies. Segment contribution, which is the Company's segment profitability metric presented in the table below, excludes certain intercompany charges, specifically royalties, license fees, transfer pricing, discrete charges and other miscellaneous items. These charges have been included in Corporate and other expenses. Corporate and other expenses also include costs related to the Company's executive and administrative offices, information technology, research and development, and marketing and supply chain functions not recorded at the segment level.

The accounting policies of the segments are the same as those described in Note 1 – The Company. The Company evaluates the performance of its segments based on revenue and segment contribution. Each segment records direct expenses related to its employees and its operations.

Summarized financial information for the Company's reportable segments is shown in the following tables. Asset information is not reviewed or included with the Company's internal management reporting. Therefore, the Company has not disclosed asset information for each reportable segment.

Revenue by Segment

	Three Months Ended June 30,				Six Months Ended June 30,
(U.S. dollars in thousands)	2018		2017		2018		2017

Mainland China	$	245,256	$	172,098	$	442,787	$	322,102
Americas/Pacific		103,990		82,997		196,279		154,422
South Korea		91,624		86,917		180,554		169,388
Southeast Asia		79,223		60,545		150,083		123,570
Japan		64,113		64,796		127,337		125,952
Hong Kong/Taiwan		52,206		43,071		93,198		79,019
EMEA		44,010		38,188		88,991		72,252
Other		23,768		1,489		41,180		2,495
Total	$	704,190	$	550,101	$	1,320,409	$	1,049,200

Segment Contribution

	Three Months Ended June 30,						Six Months Ended June 30,
(U.S. dollars in thousands)	2018			2017			2018			2017

Mainland China	$	73,899		$	52,283		$	118,716		$	87,710
Americas/Pacific		17,068			12,718			26,240			23,777
South Korea		24,880			22,278			51,081			46,790
Southeast Asia		20,639			13,367			37,041			26,384
Japan		13,377			10,922			26,615			23,348
Hong Kong/Taiwan		7,835			7,766			15,681			12,849
EMEA		3,069			3,617			7,823			5,408
Total segment contribution		160,767			122,951			283,197			226,266
Corporate and other		(78,003	)		(58,212	)		(141,443	)		(115,265	)
Operating income		82,764			64,739			141,754			111,001
Other income (expense)		(11,165	)		(2,731	)		(9,958	)		(7,298	)
Income before provision for income taxes	$	71,599		$	62,008		$	131,796		$	103,703

Depreciation and Amortization

	Three Months Ended June 30,				Six Months Ended June 30,
(U.S. dollars in thousands)	2018		2017		2018		2017

Mainland China	$	3,444	$	3,681	$	6,931	$	7,652
Americas/Pacific		279		484		493		1,050
South Korea		1,576		1,654		3,243		3,286
Southeast Asia		564		550		1,123		1,077
Japan		900		899		1,815		1,779
Hong Kong/Taiwan		321		344		644		646
EMEA		175		322		351		594
Other		13,976		9,521		25,542		18,996
Total	$	21,235	$	17,455	$	40,142	$	35,080

Capital Expenditures

	Three Months Ended June 30,				Six Months Ended June 30,
(U.S. dollars in thousands)	2018		2017		2018		2017

Mainland China	$	1,029	$	760	$	2,898	$	1,663
Americas/Pacific		240		327		429		561
South Korea		44		16		44		464
Southeast Asia		144		333		195		533
Japan		72		21		383		97
Hong Kong/Taiwan		116		511		598		1,117
EMEA		42		118		77		311
Other		14,090		9,737		23,805		23,005
Total	$	15,777	$	11,823	$	28,429	$	27,751

Revenue by Major Market

A major market is defined as one with total revenue greater than 10% of consolidated total revenue. Based on this criteria, the Company has identified three major markets: Mainland China, South Korea and Japan. There are approximately 50 other markets, each of which individually is less than 10%. No single customer accounted for 10% or more of net sales for the periods presented. Sales are recorded in the jurisdiction in which the transactions occurred.

Revenue by Product Line

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017

Nu Skin		$	466,462		$	345,287		$	852,912		$	647,160
Pharmanex			212,998			202,912			425,897			399,015
Other			24,730			1,902			41,600			3,025
Totals		$	704,190		$	550,101		$	1,320,409		$	1,049,200

Long-Lived Assets by Major Market

A major market is defined as a market with long-lived assets greater than 10% of consolidated long-lived assets and also includes the Company's country of domicile (the U.S.). Long-lived assets in Mainland China consist primarily of property, plant and equipment related to manufacturing, distribution facilities and the Mainland China headquarters. Long-lived assets in the U.S. consist primarily of property, plant and equipment, including the Company's corporate offices and distribution facilities. Long-lived assets by major markets are set forth below for the periods ended June 30, 2018 and December 31, 2017 (U.S. dollars in thousands):

	June 30, 2018		December 31, 2017

United States	$	357,043	$	302,884
Mainland China		89,529		97,046
South Korea		37,462		42,211
Japan		8,122		9,342
All others		11,296		13,104
Total	$	503,452	$	464,587

GOODWILL

6 Months Ended

Jun. 30, 2018

GOODWILL [Abstract]

GOODWILL

7. GOODWILL

During the first quarter of 2017, the Company realigned its operational segments and reporting structure to reflect how the business will be managed going forward. As part of this realignment, the Company divided its single operating segment into seven geographical reporting segments. The Company's reporting units for goodwill are its operating segments, which are also its reportable segments. As a result of the segment changes, the historical goodwill of $115.0 million was allocated to the seven reportable segments.

The following table presents goodwill allocated to the Company's reportable segments for the periods ended June 30, 2018 and December 31, 2017 (U.S. dollars in thousands):

	June 30, 2018		December 31, 2017

Mainland China	$	32,179	$	32,179
Americas/Pacific		9,449		9,449
South Korea		29,261		29,261
Southeast Asia		18,537		18,537
Japan		16,019		16,019
Hong Kong/Taiwan		6,634		6,634
EMEA		2,875		2,875
Other		72,469		—
Total	$	187,423	$	114,954

The Other category represents goodwill allocated to the companies acquired in the first quarter of 2018 (see Note 15 – Acquisitions).

INVENTORY

6 Months Ended

Jun. 30, 2018

INVENTORY [Abstract]

INVENTORY

8. INVENTORY

Inventories consist of the following (U.S. dollars in thousands):

	June 30, 2018		December 31, 2017

Raw materials	$	99,984	$	87,683
Finished goods		183,746		165,771
	$	283,730	$	253,454

The total inventory balance as of June 30, 2018 includes $23.1 million of inventory held by the companies acquired in the first quarter of 2018 (see Note 15 - Acquisitions).

INCOME TAXES	6 Months Ended
INCOME TAXES	Jun. 30, 2018
INCOME TAXES [Abstract]
INCOME TAXES	9. INCOME TAXES Provision for income taxes for the three- and six-month periods of 2018 was $20.6 million and $45.3 million, compared to $20.0 million and $34.2 million for the prior-year periods. The effective tax rates for the three- and six-month periods were 28.8% and 34.4% of pre-tax income compared to 32.2% and 33.0% in the prior-year periods. The decrease in the effective tax rate in the second quarter of 2018 reflects a benefit due to permanent reinvestment of $60.0 million in Mainland China as well as reduced withholding tax liabilities related to foreign currency exchange rates. The Company accounts for income taxes in accordance with the Income Taxes Topic of the Financial Accounting Standards Codification. These standards establish financial accounting and reporting standards for the effects of income taxes that result from an enterprise's activities during the current and preceding years. The Company takes an asset and liability approach for financial accounting and reporting of income taxes. The Company pays income taxes in many foreign jurisdictions based on the profits realized in those jurisdictions, which can be significantly impacted by terms of intercompany transactions between the Company and its foreign affiliates. Deferred tax assets and liabilities are created in this process. The Company has netted these deferred tax assets and deferred tax liabilities by jurisdiction. Valuation allowances are established when necessary to reduce deferred tax assets to the amounts expected to be ultimately realized. The Company had net deferred tax assets of $1.4 million and net deferred tax liabilities of $2.9 million as of June 30, 2018 and December 31, 2017, respectively. In accordance with ASU 2018-05 and SAB 118, the Company recognized the provisional tax impacts related to the re-measurement of our deferred income tax assets and liabilities and the one-time, mandatory transition tax on deemed repatriation during the year ended December 31, 2017. As of June 30, 2018, the Company has not made any additional measurement-period adjustments related to these items. Such adjustments may be necessary in future periods due to, among other things, the significant complexity of the Act and anticipated additional regulatory guidance that may be issued by the Internal Revenue Service ("IRS"), changes in analysis, interpretations and assumptions the Company has made and actions the Company may take as a result of the Act. The Company is continuing to gather information to assess the application of the Act and expects to complete its analysis with the filing of its 2017 income tax returns during the third quarter of 2018. The Company files income tax returns in the U.S. federal jurisdiction, and in various state and foreign jurisdictions. The Company is no longer subject to tax examinations from the IRS for all years for which tax returns have been filed before 2011. With a few exceptions, the Company is no longer subject to state and local income tax examination by tax authorities for the years before 2011. In 2009, the Company entered into a voluntary program with the IRS called Compliance Assurance Process (“CAP”). The objective of CAP is to contemporaneously work with the IRS to achieve federal tax compliance and resolve all or most of the issues prior to filing of the tax return. The Company has elected to participate in the CAP program for 2018 and may elect to continue participating in CAP for future tax years; the Company may withdraw from the program at any time. In major foreign jurisdictions, the Company is generally no longer subject to income tax examinations for years before 2011. However, statutes in certain countries may be as long as ten years. Along with the IRS examination of 2011, the Company is currently under examination in certain foreign jurisdictions; however, the outcomes of those reviews are not yet determinable. In the first quarter of 2018 there was a discrete income tax charge of $5.8 million booked. The charge was primarily related to additional reserves as the result of an Income Tax audit in Indonesia. The Company's unrecognized tax benefits relate to multiple jurisdictions. Due to potential increases in unrecognized tax benefits from the multiple jurisdictions in which the Company operates, as well as the expiration of various statutes of limitation, it is reasonably possible that the Company's gross unrecognized tax benefits, net of foreign currency adjustments, may decrease within the next 12 months by a range of approximately $1 to $2 million.

COMMITMENTS AND CONTINGENCIES	6 Months Ended
COMMITMENTS AND CONTINGENCIES	Jun. 30, 2018
COMMITMENTS AND CONTINGENCIES [Abstract]
COMMITMENTS AND CONTINGENCIES	10. COMMITMENTS AND CONTINGENCIES The Company is subject to government regulations pertaining to product formulation, labeling and packaging, product claims and advertising, and the Company's direct selling system. The Company is also subject to the jurisdiction of numerous foreign tax and customs authorities. Any assertions or determination that either the Company or the Company's sales force is not in compliance with existing statutes, laws, rules or regulations could have a material adverse effect on the Company's operations. In addition, in any country or jurisdiction, the adoption of new statutes, laws, rules or regulations or changes in the interpretation of existing statutes, laws, rules or regulations could have a material adverse effect on the Company and its operations. No assurance can be given that the Company's compliance with applicable statutes, laws, rules and regulations will not be challenged by foreign authorities or that such challenges will not have a material adverse effect on the Company's financial position, results of operations or cash flows. The Company and its Subsidiaries are defendants in litigation, investigations and other proceedings involving various matters. In the opinion of the Company's management, based upon advice of its counsel handling such litigation, investigations and other proceedings, adverse outcomes, if any, are not currently expected to result in a material effect on the Company's consolidated financial condition, results of operations or cash flows. The Company is subject to regular audits by federal, state and foreign tax authorities. These audits may result in additional tax liabilities. The Company believes it has appropriately provided for income taxes for all years. Several factors drive the calculation of its tax reserves. Some of these factors include: (i) the expiration of various statutes of limitations; (ii) changes in tax law and regulations; (iii) issuance of tax rulings; and (iv) settlements with tax authorities. Changes in any of these factors may result in adjustments to the Company's reserves, which would impact its reported financial results.

DEBT

6 Months Ended

Jun. 30, 2018

DEBT [Abstract]

DEBT

11. DEBT

Existing Credit Agreement

On October 9, 2014, the Company entered into a Credit Agreement (the "Existing Credit Agreement") with various financial institutions, and Bank of America, N.A. as administrative agent. The Existing Credit Agreement provided for a $127.5 million term loan facility, a 6.6 billion Japanese yen term loan facility and a $187.5 million revolving credit facility, each with a term of five years. On October 10, 2014, the Company drew the full amount of the term loan facilities. On April 18, 2018, the Company repaid the full balance that was outstanding under the Existing Credit Agreement. As of June 30, 2018 and December 31, 2017, the Company had an outstanding balance of zero and $47.5 million, respectively, on the revolving credit facility. The Existing Credit Agreement required that the Company maintain a consolidated leverage ratio not exceeding 2.25 to 1.00 and a consolidated interest coverage ratio of no less than 3.00 to 1.00.

New Credit Agreement

On April 18, 2018, the Company entered into a Credit Agreement (the "New Credit Agreement") with several financial institutions as lenders and Bank of America, N.A., as administrative agent. The New Credit Agreement provides for a $400 million term loan facility and a $350 million revolving credit facility, each with a term of five years. Concurrently with the closing of the New Credit Agreement, the Company drew the full amount of the term loan facility and $78.5 million of the revolving facility, each of which initially bear interest at the London Interbank Offered Rate ("LIBOR"), plus 2.25%. The interest rate applicable to the facilities is subject to adjustment based on the Company's consolidated leverage ratio. The term loan facility will amortize in quarterly installments in amounts resulting in an annual amortization of 5.0% during the first and second years, 7.5% during the third and fourth years and 10.0% during the fifth year after the closing date of the New Credit Agreement, with the remainder payable at final maturity. The New Credit Agreement requires the Company to maintain a consolidated leverage ratio not exceeding 2.25 to 1.00 and a consolidated interest coverage ratio of no less than 3.00 to 1.00.

Convertible Note

On June 16, 2016, the Company issued $210.0 million of convertible senior notes (the "Convertible Notes") in a private offering to a Chinese investor (the "Holder"). The Convertible Notes were senior unsecured obligations which ranked equal in right of payment to all senior unsecured indebtedness of the Company and ranked senior in right of payment to any indebtedness that was contractually subordinated to the Convertible Notes. Interest on the Convertible Notes was payable semiannually in arrears on June 15 and December 15 of each year at a rate of 4.75% per annum.

The Convertible Notes had a stated maturity date of June 15, 2020, unless repurchased or converted prior to maturity. Prior to the stated maturity date, the Company could, at its option, redeem all or part of the Convertible Notes at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, provided that its common stock share price was equal to or exceeded 180% of the applicable conversion price for 20 or more trading days (including the final three trading days) in the 30 consecutive trading days prior to the Company's exercise of such redemption right. The Holder of the Convertible Notes could, at its option, cause the Company to repurchase all of such Holder's Convertible Notes or any portion thereof that was equal to $1,000 in principal amount or multiples of $1,000 upon a change in control or a termination of trading of the Company's common stock, as those terms were defined in the indenture governing the Convertible Notes. In addition, each holder of the Convertible Notes had the right, at such holder's option, to convert all or any portion thereof that is equal to $1,000 in principal amount or multiples of $1,000 at any time beginning six calendar months following June 16, 2016, at the then-applicable conversion rate. Upon conversion by the Holder, the Convertible Notes would be settled in cash with respect to principal and any accrued and unpaid interest to such date and in the Company's common shares with respect to any additional amounts, based on the applicable conversion rate at such time. The Convertible Notes had an initial conversion rate of 21.5054 common shares per $1,000 principal amount of the Convertible Notes (which is equal to an initial conversion price of approximately $46.50 per common share). Throughout the term of the Convertible Notes, the conversion rate could be adjusted upon the occurrence of certain specified events.

Of the $210.0 million in proceeds received from the issuance of the Convertible Notes, $199.1 million was originally allocated to long-term debt (the "Liability Component") and $10.9 million was allocated to additional paid-in capital (the "Equity Component") within the Company's consolidated balance sheet. The Liability Component was calculated by measuring the fair value of a similar debt instrument that does not have an associated conversion feature. The amount allocated to the Equity Component, representing the conversion option, was calculated by deducting the fair value of the Liability Component from the par value of the Convertible Notes. The Company determined that the conversion option did not require separate accounting treatment as a derivative instrument because it was both indexed to the Company's own stock and would be classified in stockholders' equity if freestanding. The Equity Component would not be remeasured as long as it continued to meet the conditions for equity classification. The excess of the principal amount of the Liability Component over its carrying amount (the "Debt Discount") was amortized to interest expense over the term of the Convertible Notes. As a result, the Liability Component was accreted up to the Convertible Notes' $210.0 million face value, resulting in additional non-cash interest expense being recognized within the Company's consolidated statement of income. The effective interest rate on the Convertible Notes was approximately 7.1% per annum.

The Company incurred approximately $6.6 million of issuance costs related to the issuance of the Convertible Notes. Of the $6.6 million in issuance costs incurred, $6.3 million and $0.3 million were recorded to deferred financing cost and additional paid-in capital, respectively, in proportion to the allocation of the proceeds of the Convertible Notes. The $6.3 million recorded to deferred financing cost on the Company's consolidated balance sheet as a reduction of long-term debt was amortized over the contractual term of the Convertible Notes using the effective interest method. During the first quarter of 2018 the issuance costs were expensed due to the conversion of the Notes.

During the three- and six-months ended June 30, 2018, the Company recognized $0.5 million and $3.5 million, respectively in interest expense related to the Convertible Notes, which included $0.5 million and $3.0 million, respectively of contractual interest and zero and $0.5 million, respectively in amortization of debt issuance costs and in amortization of the Debt Discount prior to the conversion of the Notes.

During the first quarter of 2018, the Holder elected to convert the Convertible Notes pursuant to their terms in the indenture. The Company satisfied the equity portion of its conversion obligation on February 28, 2018 by issuing 1,535,652 shares of the Company's Class A Common Stock to the Holder and, on April 18, 2018, satisfied and discharged its obligations under the Convertible Notes and the indenture governing the Convertible Notes by paying the Holder $213.4 million which included $3.4 million of accrued interest from December 15, 2017 through April 17, 2018. The early conversion of the notes resulted in a $7.2 million charge to other income (expense) during the first quarter of 2018 for a loss on extinguishment of debt.

The following table summarizes the Company's debt facilities as of June 30, 2018 and December 31, 2017:

Facility or Arrangement	Original Principal Amount	Balance as of June 30, 2018⁽¹⁾⁽²⁾	Balance as of December 31, 2017⁽²⁾	Interest Rate	Repayment terms

October 2014 Credit Agreement term loan facility:

U.S. dollar denominated:	$127.5 million	—	$94.8 million	Variable 30 day: 4.627%	Principal amount was paid in full during April 2018.

Japanese yen denominated:	6.6 billion yen	—	4.9 billion yen ($43.5 million as of December 31, 2017)	Variable 30 day: 2.7595%	Principal amount was paid in full during April 2018.

October 2014 Credit Agreement revolving credit facility:		—	$47.5 million	Variable 30 day: 4.594%	Principal amount was paid in full during April 2018 and credit line was closed.

April 2018 Credit Agreement term loan facility:

U.S. dollar denominated:	$400.0 million	$395.0 million	—	Variable 30 day: 4.344%	35% of the principal amount is payable in increasing quarterly installments over a five-year period beginning on June 30, 2018, with the remainder payable at the end of the five-year term.

April 2018 Credit Agreement revolving credit facility:		$74.5 million	—	Variable 30 day: 4.344%	Revolving line of credit expires April 18, 2023.

Japan subsidiary loan:	2.1 billion yen	0.3 billion yen ($3.0 million as of June 30, 2018)	0.7 billion yen ($5.9 million as of December 31, 2017)	0.66%	Payable in semi-annual installments over three years that began on January 31, 2016.

Convertible note	$210.0 million	—	$210.0 million	4.75%	Principal amount was paid in full during April 2018.

⁽¹⁾

As of June 30, 2018, the current portion of the Company's debt (i.e. becoming due in the next 12 months) included $20.0 million of the balance of its U.S. dollar denominated debt under the New Credit Agreement facility and $3.0 million of the Japan subsidiary loan. The Company has classified the $74.5 million borrowed under the revolving line of credit as short term because it is the Company's intention to use the line of credit to borrow and pay back funds over short periods of time.

⁽²⁾

The carrying value of the debt reflects the amounts stated in the above table less debt issuance costs of $4.5 million as of June 30, 2018 related to the credit agreement; and a debt discount of $9.1 million and debt issuance costs of $4.0 million (consisting of $11.1 million related to the Convertible Note and $2.0 million related to the credit agreement) as of December 31, 2017, which is not reflected in this table.

FAIR VALUE

6 Months Ended

Jun. 30, 2018

FAIR VALUE [Abstract]

FAIR VALUE

12. FAIR VALUE

The carrying value of financial instruments including cash and cash equivalents, accounts receivable and accounts payable approximate fair values due to the short-term nature of these instruments. The Company's current investments as of June 30, 2018 include certificates of deposits and pre-refunded municipal bonds that are classified by management as held-to-maturity as the Company had the positive intent and ability to hold to maturity. The carrying value of these current investments approximate fair values due to the short-term nature of these instruments. The Company has classified these instruments as Level 2 in the fair value hierarchy. Fair value estimates are made at a specific point in time, based on relevant market information.

The FASB Codification defines fair value as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. On a quarterly basis, the Company measures at fair value certain financial assets, including cash equivalents. Accounting standards specify a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect data obtained from independent sources, while unobservable inputs reflect the Company's market assumptions. These two types of inputs have created the following fair-value hierarchy:

▪ Level 1 – quoted prices in active markets for identical assets or liabilities;

▪ Level 2 – inputs, other than the quoted prices in active markets, that are observable either directly or indirectly;

▪ Level 3 – unobservable inputs based on the Company's own assumptions.

Accounting standards permit companies, at their option, to measure certain financial instruments and other eligible items at fair value. The Company has elected not to apply the fair value option to existing eligible items beyond what is required by US GAAP.

The following tables present the fair value hierarchy for those assets and liabilities measured at fair value on a recurring basis (U.S. dollars in thousands):

	Fair Value at June 30, 2018
	Level 1		Level 2		Level 3		Total

Financial assets (liabilities):
Cash equivalents and current investments	$	79,249	$	—	$	—	$	79,249
Other long-term assets		3,566		—		—		3,566
Forward contracts		—		—		—		—
Life insurance contracts		—		—		38,232		38,232
Total	$	82,815	$	—	$	38,232	$	121,047

	Fair Value at December 31, 2017
	Level 1		Level 2		Level 3		Total

Financial assets (liabilities):
Cash equivalents and current investments	$	36,531	$	—	$	—	$	36,531
Other long-term assets		3,726		—		—		3,726
Forward contracts		—		158		—		158
Life insurance contracts		—		—		37,737		37,737
Total	$	40,257	$	158	$	37,737	$	78,152

The following table provides a summary of changes in fair value of the Company's Level 3 marketable securities (U.S. dollars in thousands):

Life Insurance Contracts

Beginning balance at April 1, 2018	$	38,929
Actual return on plan assets:
Relating to assets still held at the reporting date		(633	)
Purchases and issuances		—
Sales and settlements		(64	)
Transfers into Level 3		—
Ending balance at June 30, 2018	$	38,232

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

ACCOUNTING PRONOUNCEMENTS	6 Months Ended
ACCOUNTING PRONOUNCEMENTS	Jun. 30, 2018
ACCOUNTING PRONOUNCEMENTS [Abstract]
ACCOUNTING PRONOUNCEMENTS	13. ACCOUNTING PRONOUNCEMENTS In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new standard was effective for the Company in the first quarter of 2018. As a result of adopting this new accounting guidance, the Company has changed the method of accounting for its loyalty points program from a cost provision method to a deferred revenue method. The Company adopted the new standard effective January 1, 2018 using the modified retrospective transition method. The cumulative impact of adoption was a $11.2 million net reduction to beginning retained earnings. See Note 16 – Revenue Recognition. In February 2016, the FASB issued ASU 2016-02, Leases (Subtopic 842). ASU 2016-02 will require companies to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements. For public companies, this standard is effective for annual reporting periods beginning after December 15, 2018, and early adoption is permitted. The Company is currently evaluating the impact of this standard on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The objective of this update was to simplify several aspects of the accounting for employee share-based payment transactions, including accounting for income taxes related to share-based compensation, the related classification in the statement of cash-flows, and accounting for share award forfeitures. This ASU was effective for the Company beginning on January 1, 2017. Prior to January 1, 2017, excess tax benefits were recognized in equity. As permitted, the Company elected to classify excess tax benefits as an operating activity in the Statement of Cash Flows instead of as a financing activity on a prospective basis and did not retroactively adjust prior periods. As also permitted by the new guidance, beginning January 1, 2017 the Company has elected to account for share award forfeitures as they occur. Previously, share-based compensation expense was recorded net of estimated forfeitures. A cumulative adjustment of $2.8 million was recorded to retained earnings and additional paid-in capital as of January 1, 2017. Prior periods were not retroactively adjusted. In the second half of 2016, the FASB issued ASU Nos. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, and 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. The objective of these updates is to reduce the diversity in practice in the classification of certain cash receipts and cash payments, and the presentation of restricted cash within an entity's statement of cash flows, respectively. These ASUs are effective for interim and annual fiscal periods beginning after December 15, 2017. Early adoption is permitted. The adoption of this guidance did not have a material impact on the Company's consolidated financial statements. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. This guidance revises the definition of a business as it relates to acquisitions, disposals, goodwill impairments and consolidations. This ASU is effective for annual periods beginning after December 15, 2017. Early adoption is permitted. The adoption of this guidance did not have a material impact on the Company's consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This guidance simplifies the required test of goodwill for impairment by eliminating Step 2 from the goodwill impairment test. If a company determines in Step 1 of the goodwill impairment test that the carrying value of a reporting unit is less than the fair value, an impairment in that amount should be recorded to the income statement, rather than proceeding to Step 2. This ASU is effective for interim and annual impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted. The adoption of this guidance is not expected to have a material impact on the Company's consolidated financial statements. In December 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The new standard makes more financial and non-financial hedging strategies eligible for hedge accounting. It also amends the presentation and disclosure requirements and changes how companies assess effectiveness. For public companies, the amendments in this ASU are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted in any interim period. The adoption of this guidance is not expected to have a material impact on the Company's consolidated financial statements. In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This guidance provides an option to reclassify from accumulated other comprehensive income to retained earnings the stranded tax effects resulting from the Tax Cuts and Jobs Act of 2017. This ASU is effective for interim and annual periods beginning after December 15, 2018. Early adoption is permitted. The Company is currently evaluating the impact of this standard on its consolidated financial statements.

COST OF SALES	6 Months Ended
COST OF SALES	Jun. 30, 2018
COST OF SALES [Abstract]
COST OF SALES	14. COST OF SALES The Tokyo District Court and, on appeal in 2017, the Tokyo High Court upheld the Japan customs authorities' customs assessments related to the importation of several of the Company's products into Japan. The Company appealed the High Court's decision to the Japan Supreme Court. In May 2018, the Japan Supreme Court declined to hear the Company's appeal. Accordingly, this matter is now closed. As previously disclosed, the Company already recorded a charge of $31.4 million to cost of sales in the first quarter of 2016, when the District Court issued its decision. This charge represents the full amount being disputed. It was a non-cash item because the Company was previously required to pay the assessments.

ACQUISITIONS

6 Months Ended

Jun. 30, 2018

ACQUISITIONS [Abstract]

ACQUISITIONS

15. ACQUISITIONS

On January 22, 2018, the Company acquired the remaining 73% ownership in Innuvate Health Sciences, LLC ("Innuvate"), which owns a 92% interest in a nutritional product manufacturer. Prior to this acquisition, the Company owned 27% of Innuvate and accounted for it using the equity method. The remaining 8% ownership in the manufacturer will continue to be held by an unrelated third party. Under the terms of the agreement, the Company paid $23.5 million in cash and shares of the Company in exchange for the 73% ownership in Innuvate, subject to adjustment for certain closing items. Innuvate is a contract manufacturer that specializes in softgel and hardshell capsule manufacturing.

On February 12, 2018, the Company acquired the remaining 65% ownership in Treviso, LLC ("Treviso"), making Treviso a wholly owned subsidiary of the Company. Treviso is a personal care product manufacturer. Prior to this acquisition, the Company owned 35% of Treviso and accounted for it using the equity method. Under the terms of the purchase agreement, the Company has paid $83.9 million in cash and shares of the Company in exchange for the 65% ownership in Treviso, subject to adjustment for certain closing items. Treviso is a liquid contract manufacturing laboratory for premium personal care products.

On February 12, 2018, the Company acquired 100% ownership in L&W Holdings, Inc. ("L&W") making L&W a wholly owned subsidiary of the Company. L&W is a packaging supplier company. Under the terms of the purchase agreement, the Company paid $25.0 million in shares of the Company in exchange for 100% ownership in L&W, subject to adjustment for certain closing items. L&W specializes in the distribution and packaging of products in the cosmetic and nutritional industries.

The following table summarizes the fair value of consideration transferred for the acquisitions disclosed above (in thousands):

	Innuvate		Treviso		L&W Holdings		Total

Total cash consideration	$	17,587	$	14,648	$	—	$	32,235
Shares issued in conjunction with acquisition		5,863		69,252		25,000		100,115
Total consideration	$	23,450	$	83,900	$	25,000		132,350
Previously held equity interest in equity method Investments⁽¹⁾		8,748		30,281		—		39,029
Total	$	32,198	$	114,181	$	25,000	$	171,379

⁽¹⁾

The acquisitions of Innuvate and Treviso are considered step acquisitions, and accordingly, the Company remeasured its pre-existing 27% equity interest in Innuvate and 35% of Treviso immediately prior to completion of the acquisition to its estimated fair value of approximately $39.0 million. As a result of the remeasurement, the Company recorded a gain of approximately $13.6 million within other income (expense), during the first quarter of 2018, representing the excess of the approximate $39.0 million estimated fair value of its pre-existing 27% equity interest in Innuvate and 35% equity interest of Treviso over its transaction date carrying value of approximately $25.4 million.

The following table summarizes the fair value of the assets acquired for the acquisitions disclosed above (in thousands):

	Innuvate				Treviso				L&W Holdings
	Life	Amount			Life	Amount			Life	Amount

Total current assets		$	6,219			$	19,659			$	7,353
Fixed assets			9,291				33,282				114
Customer list	9 years		5,100		9 years		16,500		7 years		6,500
Order backlog	5 months		200		10 months		4,700		4 months		900
Trademarks	7 years		900		6 years		1,300		5 years		600
Total current liabilities			(3,942	)			(3,740	)			(1,495	)
Other non-current liabilities			—				—				(1,731	)
Total identifiable net assets acquired			17,768				71,701				12,241
Goodwill			17,230				42,480				12,759
Fair value of noncontrolling interest			(2,800	)			—				—
Total consideration and value to be allocated to net assets		$	32,198			$	114,181			$	25,000

Pro forma and historical results of operations for the acquired companies have not been presented because they are not material, either individually or in the aggregate, to the company's consolidated financial statements.

REVENUE RECOGNITION

6 Months Ended

Jun. 30, 2018

REVENUE RECOGNITION [Abstract]

REVENUE RECOGNITION

16. REVENUE RECOGNITION

Adoption of ASC Topic 606, "Revenue from Contracts with Customers"

On January 1, 2018, the Company adopted Topic 606 using the modified retrospective method applied to those contracts which were not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while prior period amounts are not adjusted and continue to be reported in accordance with our historic accounting under Topic 605.

The Company recorded a net reduction to opening retained earnings of $11.2 million, net of tax, as of January 1, 2018 due to the cumulative impact of adopting Topic 606, with the impact primarily related to our loyalty point program deferrals. The impact to revenues as a result of applying Topic 606 for the three- and six-months ended June 30, 2018 was a decrease of $0.6 million and $1.2 million, respectively.

Revenue Recognition

Net sales include products and shipping and handling charges, net of estimates for product returns and any related sales incentives. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring products. All revenue is recognized when we satisfy our performance obligations under the contract. The Company recognizes revenue by transferring the promised products to the customer, with revenue recognized at shipping point, the point in time the customer obtains control of the products. The Company recognizes revenue for shipping and handling charges at the time the products are delivered to or picked up by the customer. The Company estimates product returns based on historical return rates. The majority of the Company's contracts have a single performance obligation and are short term in nature. Sales taxes and value added taxes in foreign jurisdictions that are collected from customers and remitted to governmental authorities are accounted for on a net basis and therefore are excluded from net sales.

Contract Liabilities – Customer Loyalty Programs

Contract liabilities, recorded as deferred revenue within the accrued expenses line in the Condensed Consolidated Balance Sheets, include loyalty point program deferrals with certain customers which are accounted for as a reduction in the transaction price and are generally recognized as points are redeemed for additional products on an annual basis. Significant changes in these contract liability balances were as follows for the six-month period ended June 30 (U.S. dollars in thousands):

	June 30, 2018

Outstanding at beginning of period	$	13,043	⁽¹⁾
Increase (decrease) attributed to:
Customer loyalty deferrals		3,029
Customer loyalty redemptions/expirations		(1,802	)
Outstanding at end of period	$	14,270

⁽¹⁾

The company recorded customer loyalty points under the cost provision method prior to the adoption of Topic 606. The loyalty point liability under the cost provision methodology was $1.9 million as of December 31, 2017. The Company recorded an additional liability of $11.2 million due to the cumulative impact of adopting Topic 606.

Disaggregation of Revenue

Please refer to Note 6 - Segment Information for revenue by segment and product line.

Arrangements with Multiple Performance Obligations

The Company's contracts with customers may include multiple performance obligations. For such arrangements, the Company allocates revenues to each performance obligation based on its relative standalone selling price. The Company generally determines standalone selling prices based on the prices charged to customers for individual products sales to customers.

Practical Expedients and Exemptions

The Company generally expenses sales commissions when incurred because the amortization period would have been one year or less. These costs are recorded within selling expenses.

The Company does not disclose the value of unsatisfied performance obligations for contracts with an original expected length of one year or less.

SUBSEQUENT EVENTS	6 Months Ended
SUBSEQUENT EVENTS	Jun. 30, 2018
SUBSEQUENT EVENTS [Abstract]
SUBSEQUENT EVENTS	17. SUBSEQUENT EVENTS During the second quarter of 2018, Argentina was determined to be a highly inflationary economy. Accordingly, the Company will apply highly inflationary accounting beginning July 1, 2018. From that date, the U.S. dollar will be used as the functional currency of the Argentina subsidiary. For the six months ended June 30, 2018, the Argentina subsidiary represented less than 2% of the Company's consolidated net revenues and less than 1% of total assets.

THE COMPANY (Policies)	6 Months Ended
THE COMPANY (Policies)	Jun. 30, 2018
THE COMPANY [Abstract]
Basis of Accounting	The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. The unaudited consolidated financial statements include the accounts of the Company and its Subsidiaries. All significant intercompany accounts and transactions are eliminated in consolidation. In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments, consisting of normal recurring adjustments, considered necessary for a fair statement of the Company's financial information as of June 30, 2018, and for the three- and six-month periods ended June 30, 2018 and 2017. The results of operations of any interim period are not necessarily indicative of the results of operations to be expected for the fiscal year. The consolidated balance sheet as of December 31, 2017 has been prepared using information from the audited financial statements at that date. For further information, refer to the consolidated financial statements and accompanying footnotes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017.

ACCOUNTING PRONOUNCEMENTS (Policies)	6 Months Ended
ACCOUNTING PRONOUNCEMENTS (Policies)	Jun. 30, 2018
ACCOUNTING PRONOUNCEMENTS [Abstract]
Accounting Pronouncements	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new standard was effective for the Company in the first quarter of 2018. As a result of adopting this new accounting guidance, the Company has changed the method of accounting for its loyalty points program from a cost provision method to a deferred revenue method. The Company adopted the new standard effective January 1, 2018 using the modified retrospective transition method. The cumulative impact of adoption was a $11.2 million net reduction to beginning retained earnings. See Note 16 – Revenue Recognition. In February 2016, the FASB issued ASU 2016-02, Leases (Subtopic 842). ASU 2016-02 will require companies to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements. For public companies, this standard is effective for annual reporting periods beginning after December 15, 2018, and early adoption is permitted. The Company is currently evaluating the impact of this standard on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The objective of this update was to simplify several aspects of the accounting for employee share-based payment transactions, including accounting for income taxes related to share-based compensation, the related classification in the statement of cash-flows, and accounting for share award forfeitures. This ASU was effective for the Company beginning on January 1, 2017. Prior to January 1, 2017, excess tax benefits were recognized in equity. As permitted, the Company elected to classify excess tax benefits as an operating activity in the Statement of Cash Flows instead of as a financing activity on a prospective basis and did not retroactively adjust prior periods. As also permitted by the new guidance, beginning January 1, 2017 the Company has elected to account for share award forfeitures as they occur. Previously, share-based compensation expense was recorded net of estimated forfeitures. A cumulative adjustment of $2.8 million was recorded to retained earnings and additional paid-in capital as of January 1, 2017. Prior periods were not retroactively adjusted. In the second half of 2016, the FASB issued ASU Nos. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, and 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. The objective of these updates is to reduce the diversity in practice in the classification of certain cash receipts and cash payments, and the presentation of restricted cash within an entity's statement of cash flows, respectively. These ASUs are effective for interim and annual fiscal periods beginning after December 15, 2017. Early adoption is permitted. The adoption of this guidance did not have a material impact on the Company's consolidated financial statements. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. This guidance revises the definition of a business as it relates to acquisitions, disposals, goodwill impairments and consolidations. This ASU is effective for annual periods beginning after December 15, 2017. Early adoption is permitted. The adoption of this guidance did not have a material impact on the Company's consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This guidance simplifies the required test of goodwill for impairment by eliminating Step 2 from the goodwill impairment test. If a company determines in Step 1 of the goodwill impairment test that the carrying value of a reporting unit is less than the fair value, an impairment in that amount should be recorded to the income statement, rather than proceeding to Step 2. This ASU is effective for interim and annual impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted. The adoption of this guidance is not expected to have a material impact on the Company's consolidated financial statements. In December 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The new standard makes more financial and non-financial hedging strategies eligible for hedge accounting. It also amends the presentation and disclosure requirements and changes how companies assess effectiveness. For public companies, the amendments in this ASU are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted in any interim period. The adoption of this guidance is not expected to have a material impact on the Company's consolidated financial statements. In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This guidance provides an option to reclassify from accumulated other comprehensive income to retained earnings the stranded tax effects resulting from the Tax Cuts and Jobs Act of 2017. This ASU is effective for interim and annual periods beginning after December 15, 2018. Early adoption is permitted. The Company is currently evaluating the impact of this standard on its consolidated financial statements.

REVENUE RECOGNITION (Policies)	6 Months Ended
REVENUE RECOGNITION (Policies)	Jun. 30, 2018
REVENUE RECOGNITION [Abstract]
Revenue Recognition	Net sales include products and shipping and handling charges, net of estimates for product returns and any related sales incentives. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring products. All revenue is recognized when we satisfy our performance obligations under the contract. The Company recognizes revenue by transferring the promised products to the customer, with revenue recognized at shipping point, the point in time the customer obtains control of the products. The Company recognizes revenue for shipping and handling charges at the time the products are delivered to or picked up by the customer. The Company estimates product returns based on historical return rates. The majority of the Company's contracts have a single performance obligation and are short term in nature. Sales taxes and value added taxes in foreign jurisdictions that are collected from customers and remitted to governmental authorities are accounted for on a net basis and therefore are excluded from net sales.

DERIVATIVE FINANCIAL INSTRUMENTS (Tables)

6 Months Ended

Jun. 30, 2018

DERIVATIVE FINANCIAL INSTRUMENTS [Abstract]

Gains (Losses) Related to Derivative Instruments Not Designated as Hedging Instruments

Derivatives not designated as hedging instruments:	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income
		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2018		2017		2018		2017

Foreign currency contracts	Other income (expense)	$	—	$	—	$	—	$	(485	)

Gains (Losses) Related to Derivative Instruments Designated as Cash Flow Hedges

Derivatives designated as hedging instruments:	Amount of Gain (Loss) Recognized in Other Comprehensive Loss
	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2018		2017		2018			2017

Foreign currency forward contracts related to intercompany license fee, product sales, and selling expense hedges	$	87	$	207	$	(160	)	$	(180	)

Derivatives designated as hedging instruments:	Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income	Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income
		Three Months Ended							Six Months Ended
		June 30,							June 30,
		2018				2017			2018			2017

Foreign currency forward contracts related to intercompany license fees and product sales hedges	Revenue		$	(26	)		$	134		$	18		$	109
Foreign currency forward contracts related to intercompany selling expense hedges	Selling expenses		$	—			$	269		$	—		$	228

SEGMENT INFORMATION (Tables)

6 Months Ended

Jun. 30, 2018

SEGMENT INFORMATION [Abstract]

Revenue by Segment

	Three Months Ended June 30,				Six Months Ended June 30,
(U.S. dollars in thousands)	2018		2017		2018		2017

Mainland China	$	245,256	$	172,098	$	442,787	$	322,102
Americas/Pacific		103,990		82,997		196,279		154,422
South Korea		91,624		86,917		180,554		169,388
Southeast Asia		79,223		60,545		150,083		123,570
Japan		64,113		64,796		127,337		125,952
Hong Kong/Taiwan		52,206		43,071		93,198		79,019
EMEA		44,010		38,188		88,991		72,252
Other		23,768		1,489		41,180		2,495
Total	$	704,190	$	550,101	$	1,320,409	$	1,049,200

Segment Contribution

	Three Months Ended June 30,						Six Months Ended June 30,
(U.S. dollars in thousands)	2018			2017			2018			2017

Mainland China	$	73,899		$	52,283		$	118,716		$	87,710
Americas/Pacific		17,068			12,718			26,240			23,777
South Korea		24,880			22,278			51,081			46,790
Southeast Asia		20,639			13,367			37,041			26,384
Japan		13,377			10,922			26,615			23,348
Hong Kong/Taiwan		7,835			7,766			15,681			12,849
EMEA		3,069			3,617			7,823			5,408
Total segment contribution		160,767			122,951			283,197			226,266
Corporate and other		(78,003	)		(58,212	)		(141,443	)		(115,265	)
Operating income		82,764			64,739			141,754			111,001
Other income (expense)		(11,165	)		(2,731	)		(9,958	)		(7,298	)
Income before provision for income taxes	$	71,599		$	62,008		$	131,796		$	103,703

Depreciation and Amortization and Capital Expenditures

Depreciation and Amortization

	Three Months Ended June 30,				Six Months Ended June 30,
(U.S. dollars in thousands)	2018		2017		2018		2017

Mainland China	$	3,444	$	3,681	$	6,931	$	7,652
Americas/Pacific		279		484		493		1,050
South Korea		1,576		1,654		3,243		3,286
Southeast Asia		564		550		1,123		1,077
Japan		900		899		1,815		1,779
Hong Kong/Taiwan		321		344		644		646
EMEA		175		322		351		594
Other		13,976		9,521		25,542		18,996
Total	$	21,235	$	17,455	$	40,142	$	35,080

Capital Expenditures

	Three Months Ended June 30,				Six Months Ended June 30,
(U.S. dollars in thousands)	2018		2017		2018		2017

Mainland China	$	1,029	$	760	$	2,898	$	1,663
Americas/Pacific		240		327		429		561
South Korea		44		16		44		464
Southeast Asia		144		333		195		533
Japan		72		21		383		97
Hong Kong/Taiwan		116		511		598		1,117
EMEA		42		118		77		311
Other		14,090		9,737		23,805		23,005
Total	$	15,777	$	11,823	$	28,429	$	27,751

Revenue by Product Line

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017

Nu Skin		$	466,462		$	345,287		$	852,912		$	647,160
Pharmanex			212,998			202,912			425,897			399,015
Other			24,730			1,902			41,600			3,025
Totals		$	704,190		$	550,101		$	1,320,409		$	1,049,200

Long-lived Assets by Major Markets

Long-Lived Assets by Major Market

	June 30, 2018		December 31, 2017

United States	$	357,043	$	302,884
Mainland China		89,529		97,046
South Korea		37,462		42,211
Japan		8,122		9,342
All others		11,296		13,104
Total	$	503,452	$	464,587

GOODWILL (Tables)

6 Months Ended

Jun. 30, 2018

GOODWILL [Abstract]

Goodwill

The following table presents goodwill allocated to the Company's reportable segments for the periods ended June 30, 2018 and December 31, 2017 (U.S. dollars in thousands):

	June 30, 2018		December 31, 2017

Mainland China	$	32,179	$	32,179
Americas/Pacific		9,449		9,449
South Korea		29,261		29,261
Southeast Asia		18,537		18,537
Japan		16,019		16,019
Hong Kong/Taiwan		6,634		6,634
EMEA		2,875		2,875
Other		72,469		—
Total	$	187,423	$	114,954

INVENTORY (Tables)

6 Months Ended

Jun. 30, 2018

INVENTORY [Abstract]

Inventories

Inventories consist of the following (U.S. dollars in thousands):

	June 30, 2018		December 31, 2017

Raw materials	$	99,984	$	87,683
Finished goods		183,746		165,771
	$	283,730	$	253,454

DEBT (Tables)

6 Months Ended

Jun. 30, 2018

DEBT [Abstract]

Debt Facilities

The following table summarizes the Company's debt facilities as of June 30, 2018 and December 31, 2017:

Facility or Arrangement	Original Principal Amount	Balance as of June 30, 2018⁽¹⁾⁽²⁾	Balance as of December 31, 2017⁽²⁾	Interest Rate	Repayment terms

October 2014 Credit Agreement term loan facility:

U.S. dollar denominated:	$127.5 million	—	$94.8 million	Variable 30 day: 4.627%	Principal amount was paid in full during April 2018.

Japanese yen denominated:	6.6 billion yen	—	4.9 billion yen ($43.5 million as of December 31, 2017)	Variable 30 day: 2.7595%	Principal amount was paid in full during April 2018.

October 2014 Credit Agreement revolving credit facility:		—	$47.5 million	Variable 30 day: 4.594%	Principal amount was paid in full during April 2018 and credit line was closed.

April 2018 Credit Agreement term loan facility:

U.S. dollar denominated:	$400.0 million	$395.0 million	—	Variable 30 day: 4.344%	35% of the principal amount is payable in increasing quarterly installments over a five-year period beginning on June 30, 2018, with the remainder payable at the end of the five-year term.

April 2018 Credit Agreement revolving credit facility:		$74.5 million	—	Variable 30 day: 4.344%	Revolving line of credit expires April 18, 2023.

Japan subsidiary loan:	2.1 billion yen	0.3 billion yen ($3.0 million as of June 30, 2018)	0.7 billion yen ($5.9 million as of December 31, 2017)	0.66%	Payable in semi-annual installments over three years that began on January 31, 2016.

Convertible note	$210.0 million	—	$210.0 million	4.75%	Principal amount was paid in full during April 2018.

⁽¹⁾

⁽²⁾

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-SubTopic 30
-Section 45
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-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 505
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-Paragraph 6
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-Section 45
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Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
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-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

FAIR VALUE (Tables)

6 Months Ended

Jun. 30, 2018

FAIR VALUE [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables present the fair value hierarchy for those assets and liabilities measured at fair value on a recurring basis (U.S. dollars in thousands):

	Fair Value at June 30, 2018
	Level 1		Level 2		Level 3		Total

Financial assets (liabilities):
Cash equivalents and current investments	$	79,249	$	—	$	—	$	79,249
Other long-term assets		3,566		—		—		3,566
Forward contracts		—		—		—		—
Life insurance contracts		—		—		38,232		38,232
Total	$	82,815	$	—	$	38,232	$	121,047

	Fair Value at December 31, 2017
	Level 1		Level 2		Level 3		Total

Financial assets (liabilities):
Cash equivalents and current investments	$	36,531	$	—	$	—	$	36,531
Other long-term assets		3,726		—		—		3,726
Forward contracts		—		158		—		158
Life insurance contracts		—		—		37,737		37,737
Total	$	40,257	$	158	$	37,737	$	78,152

Changes in Fair Value of Level 3 Marketable Securities

The following table provides a summary of changes in fair value of the Company's Level 3 marketable securities (U.S. dollars in thousands):

Life Insurance Contracts

Beginning balance at April 1, 2018	$	38,929
Actual return on plan assets:
Relating to assets still held at the reporting date		(633	)
Purchases and issuances		—
Sales and settlements		(64	)
Transfers into Level 3		—
Ending balance at June 30, 2018	$	38,232

- Definition

Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.

+ References + Details

ACQUISITIONS (Tables)

6 Months Ended

Jun. 30, 2018

ACQUISITIONS [Abstract]

Acquisitions

The following table summarizes the fair value of consideration transferred for the acquisitions disclosed above (in thousands):

	Innuvate		Treviso		L&W Holdings		Total

Total cash consideration	$	17,587	$	14,648	$	—	$	32,235
Shares issued in conjunction with acquisition		5,863		69,252		25,000		100,115
Total consideration	$	23,450	$	83,900	$	25,000		132,350
Previously held equity interest in equity method Investments⁽¹⁾		8,748		30,281		—		39,029
Total	$	32,198	$	114,181	$	25,000	$	171,379

⁽¹⁾

The following table summarizes the fair value of the assets acquired for the acquisitions disclosed above (in thousands):

	Innuvate				Treviso				L&W Holdings
	Life	Amount			Life	Amount			Life	Amount

Total current assets		$	6,219			$	19,659			$	7,353
Fixed assets			9,291				33,282				114
Customer list	9 years		5,100		9 years		16,500		7 years		6,500
Order backlog	5 months		200		10 months		4,700		4 months		900
Trademarks	7 years		900		6 years		1,300		5 years		600
Total current liabilities			(3,942	)			(3,740	)			(1,495	)
Other non-current liabilities			—				—				(1,731	)
Total identifiable net assets acquired			17,768				71,701				12,241
Goodwill			17,230				42,480				12,759
Fair value of noncontrolling interest			(2,800	)			—				—
Total consideration and value to be allocated to net assets		$	32,198			$	114,181			$	25,000

REVENUE RECOGNITION (Tables)

6 Months Ended

Jun. 30, 2018

REVENUE RECOGNITION [Abstract]

Changes in Contract Liabilities - Customer Loyalty Programs

Significant changes in these contract liability balances were as follows for the six-month period ended June 30 (U.S. dollars in thousands):

	June 30, 2018

Outstanding at beginning of period	$	13,043	⁽¹⁾
Increase (decrease) attributed to:
Customer loyalty deferrals		3,029
Customer loyalty redemptions/expirations		(1,802	)
Outstanding at end of period	$	14,270

⁽¹⁾

THE COMPANY (Details)	6 Months Ended
THE COMPANY (Details)	Jun. 30, 2018 Segment
THE COMPANY [Abstract]
Number of segments	7

NET INCOME PER SHARE (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
NET INCOME PER SHARE (Details) - shares shares in Millions	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Stock Options [Member]
Net Income per Share [Abstract]
Anti-dilutive shares excluded from calculation of diluted earnings per share (in shares)	0.3	0.2	0.9	0.6

DIVIDENDS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended			6 Months Ended
	Jun. 13, 2018	Mar. 14, 2018	Jul. 31, 2018	Apr. 30, 2018	Feb. 28, 2018	Jun. 30, 2018	Jun. 30, 2017
Dividends per Share [Abstract]
Payment of cash dividends						$ 40,091	$ 38,042
Dividend Declared 2018-Q1 [Member]
Dividends per Share [Abstract]
Dividend payable, date declared						2018-02
Dividend payable per share (in dollars per share)					$ 0.365
Payment of cash dividends		$ 19,800
Dividend payable, date to be paid						Mar. 14, 2018
Dividend payable, date of record						Feb. 26, 2018
Dividend Declared 2018-Q2 [Member]
Dividends per Share [Abstract]
Dividend payable, date declared						2018-04
Dividend payable per share (in dollars per share)				$ 0.365
Payment of cash dividends	$ 20,300
Dividend payable, date to be paid						Jun. 13, 2018
Dividend payable, date of record						May 25, 2018
Dividend Declared 2018-Q3 [Member] \| Subsequent Event [Member]
Dividends per Share [Abstract]
Dividend payable, date declared			2018-07
Dividend payable per share (in dollars per share)			$ 0.365
Dividend payable, date to be paid			Sep. 12, 2018
Dividend payable, date of record			Aug. 31, 2018

DERIVATIVE FINANCIAL INSTRUMENTS (Details) $ in Thousands, € in Millions, ¥ in Billions	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Jun. 30, 2017 JPY (¥)	Jun. 30, 2017 EUR (€)
Foreign Currency Derivatives [Abstract]
Unrealized gains/(losses) related to foreign currency cash flow hedges included in accumulated other comprehensive loss	$ 0		$ 0		$ 100
Cumulative translation adjustments included in accumulated other comprehensive loss	75,500		75,500		$ 66,400
Foreign Currency Forward Contracts [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedges [Member]
Foreign Currency Derivatives [Abstract]
Fair value	0	$ 300	0	$ 300
Foreign Currency Forward Contracts [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedges [Member] \| Japanese Yen [Member]
Foreign Currency Derivatives [Abstract]
Notional amount		19,600		19,600		¥ 2.2
Foreign Currency Forward Contracts [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedges [Member] \| Euros [Member]
Foreign Currency Derivatives [Abstract]
Notional amount		1,100		1,100			€ 1.0
Foreign Currency Forward Contracts [Member] \| Other Comprehensive Loss [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedges [Member]
Foreign Currency Derivatives [Abstract]
Gain (loss) recognized in other comprehensive income loss	87	207	(160)	(180)
Foreign Currency Forward Contracts [Member] \| Other Income (Expense) [Member] \| Not Designated as Hedging Instrument [Member] \| Fair Value Hedges [Member]
Foreign Currency Derivatives [Abstract]
Gain (loss) recognized in income	0	0	0	(485)
Foreign Currency Forward Contracts [Member] \| Revenue [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedges [Member]
Foreign Currency Derivatives [Abstract]
Gain (loss) reclassified from accumulated other comprehensive loss into income	(26)	134	18	109
Foreign Currency Forward Contracts [Member] \| Selling Expenses [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedges [Member]
Foreign Currency Derivatives [Abstract]
Gain (loss) reclassified from accumulated other comprehensive loss into income	$ 0	$ 269	$ 0	$ 228

REPURCHASES OF COMMON STOCK (Details) - Common Class A [Member] - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jul. 31, 2018
Repurchases of Common Stock [Abstract]
Common stock repurchased (in shares)	0.2	0.3	0.5	0.4
Common stock repurchased	$ 18.4	$ 15.3	$ 35.8	$ 22.1
Available for repurchase under the repurchase program	$ 92.2		$ 92.2
Subsequent Event [Member]
Repurchases of Common Stock [Abstract]
Authorized amount for repurchase program					$ 500.0

SEGMENT INFORMATION, Revenue by Segment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) Segment Market	Jun. 30, 2017 USD ($)
SEGMENT INFORMATION [Abstract]
Number of markets \| Market			50
Number of segments \| Segment			7
Revenue by Segment [Abstract]
Revenue	$ 704,190	$ 550,101	$ 1,320,409	$ 1,049,200
Operating Segment [Member]
Revenue by Segment [Abstract]
Revenue	704,190	550,101	1,320,409	1,049,200
Operating Segment [Member] \| Mainland China [Member]
Revenue by Segment [Abstract]
Revenue	245,256	172,098	442,787	322,102
Operating Segment [Member] \| Americas/Pacific [Member]
Revenue by Segment [Abstract]
Revenue	103,990	82,997	196,279	154,422
Operating Segment [Member] \| South Korea [Member]
Revenue by Segment [Abstract]
Revenue	91,624	86,917	180,554	169,388
Operating Segment [Member] \| Southeast Asia [Member]
Revenue by Segment [Abstract]
Revenue	79,223	60,545	150,083	123,570
Operating Segment [Member] \| Japan [Member]
Revenue by Segment [Abstract]
Revenue	64,113	64,796	127,337	125,952
Operating Segment [Member] \| Hong Kong/Taiwan [Member]
Revenue by Segment [Abstract]
Revenue	52,206	43,071	93,198	79,019
Operating Segment [Member] \| EMEA [Member]
Revenue by Segment [Abstract]
Revenue	44,010	38,188	88,991	72,252
Operating Segment [Member] \| Other [Member]
Revenue by Segment [Abstract]
Revenue	$ 23,768	$ 1,489	$ 41,180	$ 2,495

SEGMENT INFORMATION, Segment Contribution (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Contribution [Abstract]
Operating income	$ 82,764	$ 64,739	$ 141,754	$ 111,001
Other income (expense)	(11,165)	(2,731)	(9,958)	(7,298)
Income before provision for income taxes	71,599	62,008	131,796	103,703
Operating Segment [Member]
Segment Contribution [Abstract]
Operating income	160,767	122,951	283,197	226,266
Operating Segment [Member] \| Mainland China [Member]
Segment Contribution [Abstract]
Operating income	73,899	52,283	118,716	87,710
Operating Segment [Member] \| Americas/Pacific [Member]
Segment Contribution [Abstract]
Operating income	17,068	12,718	26,240	23,777
Operating Segment [Member] \| South Korea [Member]
Segment Contribution [Abstract]
Operating income	24,880	22,278	51,081	46,790
Operating Segment [Member] \| Southeast Asia [Member]
Segment Contribution [Abstract]
Operating income	20,639	13,367	37,041	26,384
Operating Segment [Member] \| Japan [Member]
Segment Contribution [Abstract]
Operating income	13,377	10,922	26,615	23,348
Operating Segment [Member] \| Hong Kong/Taiwan [Member]
Segment Contribution [Abstract]
Operating income	7,835	7,766	15,681	12,849
Operating Segment [Member] \| EMEA [Member]
Segment Contribution [Abstract]
Operating income	3,069	3,617	7,823	5,408
Corporate and Other [Member]
Segment Contribution [Abstract]
Operating income	$ (78,003)	$ (58,212)	$ (141,443)	$ (115,265)

SEGMENT INFORMATION, Depreciation and Amortization and Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Summarized Financial Information [Abstract]
Depreciation and amortization	$ 21,235	$ 17,455	$ 40,142	$ 35,080
Capital expenditures	15,777	11,823	28,429	27,751
Other [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	13,976	9,521	25,542	18,996
Capital expenditures	14,090	9,737	23,805	23,005
Reportable Geographic Region [Member] \| Mainland China [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	3,444	3,681	6,931	7,652
Capital expenditures	1,029	760	2,898	1,663
Reportable Geographic Region [Member] \| Americas/Pacific [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	279	484	493	1,050
Capital expenditures	240	327	429	561
Reportable Geographic Region [Member] \| South Korea [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	1,576	1,654	3,243	3,286
Capital expenditures	44	16	44	464
Reportable Geographic Region [Member] \| Southeast Asia [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	564	550	1,123	1,077
Capital expenditures	144	333	195	533
Reportable Geographic Region [Member] \| Japan [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	900	899	1,815	1,779
Capital expenditures	72	21	383	97
Reportable Geographic Region [Member] \| Hong Kong/Taiwan [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	321	344	644	646
Capital expenditures	116	511	598	1,117
Reportable Geographic Region [Member] \| EMEA [Member]
Summarized Financial Information [Abstract]
Depreciation and amortization	175	322	351	594
Capital expenditures	$ 42	$ 118	$ 77	$ 311

SEGMENT INFORMATION, Revenue by Major Market (Details)	6 Months Ended
SEGMENT INFORMATION, Revenue by Major Market (Details)	Jun. 30, 2018 Market
SEGMENT INFORMATION [Abstract]
Number of major markets	3
Number of markets	50

SEGMENT INFORMATION, Revenue by Product Line (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue by Product Line [Abstract]
Revenue	$ 704,190	$ 550,101	$ 1,320,409	$ 1,049,200
Nu Skin [Member]
Revenue by Product Line [Abstract]
Revenue	466,462	345,287	852,912	647,160
Pharmanex [Member]
Revenue by Product Line [Abstract]
Revenue	212,998	202,912	425,897	399,015
Other [Member]
Revenue by Product Line [Abstract]
Revenue	$ 24,730	$ 1,902	$ 41,600	$ 3,025

SEGMENT INFORMATION, Long-Lived Assets by Major Market (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	$ 503,452	$ 464,587
Major Markets [Member] \| United States [Member]
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	357,043	302,884
Major Markets [Member] \| Mainland China [Member]
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	89,529	97,046
Major Markets [Member] \| South Korea [Member]
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	37,462	42,211
Major Markets [Member] \| Japan [Member]
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	8,122	9,342
Major Markets [Member] \| All Others [Member]
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	$ 11,296	$ 13,104

GOODWILL (Details) $ in Thousands	6 Months Ended
GOODWILL (Details) $ in Thousands	Jun. 30, 2018 USD ($) Segment	Dec. 31, 2017 USD ($)
Goodwill [Abstract]
Number of segments \| Segment	7
Goodwill	$ 187,423	$ 114,954
Mainland China [Member]
Goodwill [Abstract]
Goodwill	32,179	32,179
Americas/Pacific [Member]
Goodwill [Abstract]
Goodwill	9,449	9,449
South Korea [Member]
Goodwill [Abstract]
Goodwill	29,261	29,261
Southeast Asia [Member]
Goodwill [Abstract]
Goodwill	18,537	18,537
Japan [Member]
Goodwill [Abstract]
Goodwill	16,019	16,019
Hong Kong/Taiwan [Member]
Goodwill [Abstract]
Goodwill	6,634	6,634
EMEA [Member]
Goodwill [Abstract]
Goodwill	2,875	2,875
Other [Member]
Goodwill [Abstract]
Goodwill	$ 72,469	$ 0

INVENTORY (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Inventories [Abstract]
Raw materials	$ 99,984	$ 87,683
Finished goods	183,746	165,771
Inventories	283,730	$ 253,454
Companies Acquired in Q1-2018 [Member]
Inventories [Abstract]
Inventories	$ 23,100

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
INCOME TAXES (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Taxes [Abstract]
Provision for income taxes	$ 20,638		$ 19,967	$ 45,296	$ 34,173
Effective tax rate	28.80%		32.20%	34.40%	33.00%
Net deferred tax assets	$ 1,400			$ 1,400
Net deferred tax liabilities						$ 2,900
Maximum [Member]
Income Taxes [Abstract]
Statute of limitations related to income tax examinations				10 years
Income Taxes [Abstract]
Decrease in unrecognized tax benefits within the next 12 months that is reasonably possible	2,000			$ 2,000
Minimum [Member]
Income Taxes [Abstract]
Decrease in unrecognized tax benefits within the next 12 months that is reasonably possible	1,000			$ 1,000
Mainland China [Member]
Income Taxes [Abstract]
Tax assessment (benefit)	$ (60,000)
Indonesia [Member]
Income Taxes [Abstract]
Tax assessment (benefit)		$ 5,800

DEBT, Existing Credit Agreement (Details)
$ in Millions, ¥ in Billions

6 Months Ended

Jun. 30, 2018

USD ($)

Jun. 30, 2018

JPY (¥)

Dec. 31, 2017

USD ($)

^[1]

Dec. 31, 2017

JPY (¥)

^[1]

Oct. 09, 2014

USD ($)

Oct. 09, 2014

JPY (¥)

Existing Credit Agreement [Member] | Maximum [Member]

Debt [Abstract]

Consolidated leverage ratio

2.25

Existing Credit Agreement [Member] | Minimum [Member]

Debt [Abstract]

Consolidated interest coverage ratio

3.00

Term Loan Facility [Member]

Debt [Abstract]

Original principal amount

$ 127.5

Term of facility

5 years

Outstanding balance

$ 0.0

$ 94.8

Japanese Yen Term Loan Facility [Member]

Debt [Abstract]

Original principal amount | ¥

¥ 6.6

Term of facility

5 years

Outstanding balance

$ 0.0

¥ 0.0

43.5

¥ 4.9

Revolving Credit Facility [Member]

Debt [Abstract]

Borrowing capacity

$ 187.5

Term of facility

5 years

Outstanding balance

$ 0.0

$ 47.5

[1]

DEBT, New Credit Agreement (Details) $ in Thousands		6 Months Ended
DEBT, New Credit Agreement (Details) $ in Thousands	Apr. 18, 2018 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)
Long-term Debt, Current and Noncurrent [Abstract]
Proceeds from debt		$ 582,398	$ 67,000
New Credit Agreement [Member] \| Maximum [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Consolidated leverage ratio		2.25
New Credit Agreement [Member] \| Minimum [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Consolidated interest coverage ratio		3.00
Term Loan Facility [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Original principal amount	$ 400,000	$ 400,000
Term of loan		5 years
Frequency of payment		Quarterly
Term Loan Facility [Member] \| First Year [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Annual amortization percentage	5.00%
Term Loan Facility [Member] \| Second Year [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Annual amortization percentage	5.00%
Term Loan Facility [Member] \| Third Year [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Annual amortization percentage	7.50%
Term Loan Facility [Member] \| Fourth Year [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Annual amortization percentage	7.50%
Term Loan Facility [Member] \| Fifth Year [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Annual amortization percentage	10.00%
Term Loan Facility [Member] \| LIBOR [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Basis spread on variable rate	2.25%
Revolving Credit Facility [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Borrowing capacity	$ 350,000
Term of loan		5 years
Proceeds from debt	$ 78,500
Revolving Credit Facility [Member] \| LIBOR [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Basis spread on variable rate	2.25%

Debt, Convertible Note (Details)				3 Months Ended		4 Months Ended	6 Months Ended
Debt, Convertible Note (Details)	Apr. 18, 2018 USD ($)	Feb. 28, 2018 shares	Jun. 16, 2016 USD ($)	Jun. 30, 2018 USD ($) $ / shares	Mar. 31, 2018 USD ($)	Apr. 17, 2018 USD ($)	Jun. 30, 2018 USD ($) d $ / shares shares	Jun. 30, 2017 USD ($)
Convertible Debt [Abstract]
Debt issuance costs							$ 7,243,000	$ 0
Payment for principal and accrued interest	$ 213,400,000
Loss on extinguishment of debt					$ (7,220,000)		(7,220,000)	$ 0
Class A Common Stock [Member]
Convertible Debt [Abstract]
Shares issued (in shares) \| shares		1,535,652
Convertible Note [Member]
Convertible Debt [Abstract]
Original principal amount			$ 210,000,000	$ 210,000,000			$ 210,000,000
Interest rate				4.75%			4.75%
Redemption price, percentage of principal amount redeemed							100.00%
Threshold percentage of stock price trigger							180.00%
Threshold trading days \| d							20
Threshold final trading days \| d							3
Threshold consecutive trading days \| d							30
Principal amount increments that can be repurchased upon a change in control or termination of trading of common stock							$ 1,000
Principal amount increments that can be converted							$ 1,000
Holding period following issue date before notes can be converted							6 months
Initial conversion rate (in shares) \| shares							21.5054
Initial conversion price (in dollars per share) \| $ / shares				$ 46.50			$ 46.50
Proceeds from issuance of notes			210,000,000
Liability component of convertible notes			199,100,000
Equity component of convertible notes allocated to additional paid-in capital			$ 10,900,000
Effective interest rate				7.10%			7.10%
Debt issuance costs							$ 6,600,000
Additions to deferred financing cost							6,300,000
Adjustments to additional paid-in capital for debt issuance costs							300,000
Interest expense				$ 500,000			3,500,000
Contractual interest				500,000			3,000,000
Amortization of debt issuance costs and debt discount				$ 0			$ 500,000
Accrued interest						$ 3,400,000

Debt, Debt Facilities (Details)
$ in Thousands, ¥ in Billions

6 Months Ended

Jun. 30, 2018

USD ($)

Jun. 30, 2018

JPY (¥)

Apr. 18, 2018

USD ($)

Dec. 31, 2017

USD ($)

Dec. 31, 2017

JPY (¥)

Jun. 16, 2016

USD ($)

Oct. 09, 2014

USD ($)

Oct. 09, 2014

JPY (¥)

Debt [Abstract]

Current portion of debt

$ 97,481

$ 77,840

Unamortized debt issuance costs

4,500

4,000

Unamortized debt discount

9,100

October 2014 Credit Agreement Term Loan Facility [Member]

Debt [Abstract]

Original principal amount

127,500

$ 127,500

Balance

$ 0

94,800

^[1]

Interest rate

Variable 30 day: 4.627%

Interest rate

4.627%

Term of variable rate

30 days

Repayment terms

Principal amount was paid in full during April 2018.

Term of loan

5 years

Current portion of debt

$ 20,000

October 2014 Credit Agreement Japanese Yen Term Loan Facility [Member]

Debt [Abstract]

Original principal amount | ¥

¥ 6.6

Balance

$ 0

¥ 0.0

43,500

^[1]

¥ 4.9

^[1]

Interest rate

Variable 30 day: 2.7595%

Interest rate

2.7595%

Term of variable rate

30 days

Repayment terms

Principal amount was paid in full during April 2018.

Term of loan

5 years

October 2014 Credit Agreement Revolving Credit Facility [Member]

Debt [Abstract]

Balance

$ 0

47,500

^[1]

Interest rate

Variable 30 day: 4.594%

Interest rate

4.594%

Term of variable rate

30 days

Repayment terms

Principal amount was paid in full during April 2018 and credit line was closed.

Term of loan

5 years

April 2018 Credit Agreement Term Loan Facility [Member]

Debt [Abstract]

Original principal amount

$ 400,000

Balance

$ 395,000

^[1],[2]

Interest rate

Variable 30 day: 4.344%

Interest rate

4.344%

Term of variable rate

30 days

Repayment terms

35% of the principal amount is payable in increasing quarterly installments over a five-year period beginning on June 30, 2018, with the remainder payable at the end of the five-year term.

Percentage of principal payable in installments

35.00%

Frequency of payment

Quarterly

Term of loan

5 years

April 2018 Credit Agreement Revolving Credit Facility [Member]

Debt [Abstract]

Balance

$ 74,500

^[1],[2]

Interest rate

Variable 30 day: 4.344%

Interest rate

4.344%

Term of variable rate

30 days

Repayment terms

Revolving line of credit expires April 18, 2023.

Term of loan

5 years

Japan Subsidiary Loan [Member]

Debt [Abstract]

Original principal amount | ¥

¥ 2.1

Balance

$ 3,000

¥ 0.3

5,900

¥ 0.7

Interest rate

0.66%

Repayment terms

Payable in semi-annual installments over three years that began on January 31, 2016.

Frequency of payment

Semi-annual

Term of loan

3 years

Current portion of debt

$ 3,000

Convertible Note [Member]

Debt [Abstract]

Original principal amount

210,000

$ 210,000

Balance

$ 0

210,000

^[1]

Interest rate

7.10%

Interest rate

4.75%

Repayment terms

Principal amount was paid in full during April 2018.

Unamortized debt discount and debt issuance costs

11,100

Credit Agreement [Member]

Debt [Abstract]

Unamortized debt discount and debt issuance costs

$ 2,000

[1]

[2]

As of June 30, 2018, the current portion of the Company's debt (i.e. becoming due in the next 12 months) included $20.0 million of the balance of its U.S. dollar denominated debt under the New Credit Agreement facility and $3.0 million of the Japan subsidiary loan. The Company has classified the $78.5 million borrowed under the revolving line of credit as short term because it is the Company's intention to use the line of credit to borrow and pay back funds over short periods of time.

FAIR VALUE (Details) - USD ($) $ in Thousands	6 Months Ended
FAIR VALUE (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value on a Recurring Basis [Member]
Financial Assets (Liabilities) [Abstract]
Cash equivalents and current investments	$ 79,249	$ 36,531
Other long-term assets	3,566	3,726
Forward contracts	0	158
Life insurance contracts	38,232	37,737
Financial assets (liabilities), net	121,047	78,152
Fair Value on a Recurring Basis [Member] \| Level 1 [Member]
Financial Assets (Liabilities) [Abstract]
Cash equivalents and current investments	79,249	36,531
Other long-term assets	3,566	3,726
Forward contracts	0	0
Life insurance contracts	0	0
Financial assets (liabilities), net	82,815	40,257
Fair Value on a Recurring Basis [Member] \| Level 2 [Member]
Financial Assets (Liabilities) [Abstract]
Cash equivalents and current investments	0	0
Other long-term assets	0	0
Forward contracts	0	158
Life insurance contracts	0	0
Financial assets (liabilities), net	0	158
Fair Value on a Recurring Basis [Member] \| Level 3 [Member]
Financial Assets (Liabilities) [Abstract]
Cash equivalents and current investments	0	0
Other long-term assets	0	0
Forward contracts	0	0
Life insurance contracts	38,232	37,737
Financial assets (liabilities), net	38,232	$ 37,737
Life Insurance Contracts [Member]
Changes in Fair Value of Level 3 Marketable Securities [Roll Forward]
Beginning balance	38,929
Actual Return on Plan Assets [Abstract]
Relating to assets still held at the reporting date	(633)
Purchases and issuances	0
Sales and settlements	(64)
Transfers into Level 3	0
Ending balance	$ 38,232

ACCOUNTING PRONOUNCEMENTS (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
ASC Topic 606 [Member]
Accounting Pronouncements [Abstract]
Cumulative impact on opening retained earnings	$ 11.2
ASU 2016-09 [Member] \| Retained Earnings [Member]
Accounting Pronouncements [Abstract]
Cumulative adjustment		$ (2.8)
ASU 2016-09 [Member] \| Additional Paid-in Capital [Member]
Accounting Pronouncements [Abstract]
Cumulative adjustment		$ 2.8

COST OF SALES (Details) $ in Millions	3 Months Ended
COST OF SALES (Details) $ in Millions	Mar. 31, 2016 USD ($)
COST OF SALES [Abstract]
Customs expense	$ 31.4

ACQUISITIONS (Details) - USD ($)
$ in Thousands

6 Months Ended

Feb. 12, 2018

Jan. 22, 2018

Jun. 30, 2018

Jun. 30, 2017

Feb. 11, 2018

Jan. 21, 2018

Dec. 31, 2017

Fair Value of Consideration Transferred for Acquisition [Abstract]

Total cash consideration

$ 32,235

Shares issued in conjunction with acquisition

100,115

Total consideration

132,350

Previously held equity interest in equity method

^[1]

39,029

Total

171,379

Gain on step acquisition

13,644

$ 0

Carrying value of investments

$ 25,400

Fair Value of Assets Acquired [Abstract]

Goodwill

$ 187,423

$ 114,954

Innuvate [Member]

Acquisitions [Abstract]

Percentage of entity acquired

73.00%

Fair Value of Consideration Transferred for Acquisition [Abstract]

Total cash consideration

$ 17,587

Shares issued in conjunction with acquisition

5,863

Total consideration

23,450

Previously held equity interest in equity method

^[1]

8,748

Total

32,198

Fair Value of Assets Acquired [Abstract]

Total current assets

6,219

Fixed assets

9,291

Total current liabilities

(3,942)

Other non-current liabilities

Total identifiable net assets acquired

17,768

Goodwill

17,230

Fair value of noncontrolling interest

(2,800)

Total consideration and value to be allocated to net assets

32,198

Innuvate [Member] | Customer List [Member]

Fair Value of Assets Acquired [Abstract]

Intangible assets

5,100

Useful life

9 years

Innuvate [Member] | Order Backlog [Member]

Fair Value of Assets Acquired [Abstract]

Intangible assets

200

Useful life

5 months

Innuvate [Member] | Trademarks [Member]

Fair Value of Assets Acquired [Abstract]

Intangible assets

$ 900

Useful life

7 years

Nutritional Product Manufacturer [Member]

Acquisitions [Abstract]

Percentage of entity acquired

92.00%

Ownership interest in equity method investment

27.00%

Percentage of acquired entity held by third party

8.00%

Treviso [Member]

Acquisitions [Abstract]

Percentage of entity acquired

65.00%

Ownership interest in equity method investment

35.00%

Fair Value of Consideration Transferred for Acquisition [Abstract]

Total cash consideration

$ 14,648

Shares issued in conjunction with acquisition

69,252

Total consideration

83,900

Previously held equity interest in equity method

^[1]

30,281

Total

114,181

Fair Value of Assets Acquired [Abstract]

Total current assets

19,659

Fixed assets

33,282

Total current liabilities

(3,740)

Other non-current liabilities

Total identifiable net assets acquired

71,701

Goodwill

42,480

Total consideration and value to be allocated to net assets

114,181

Treviso [Member] | Customer List [Member]

Fair Value of Assets Acquired [Abstract]

Intangible assets

16,500

Useful life

9 years

Treviso [Member] | Order Backlog [Member]

Fair Value of Assets Acquired [Abstract]

Intangible assets

4,700

Useful life

10 months

Treviso [Member] | Trademarks [Member]

Fair Value of Assets Acquired [Abstract]

Intangible assets

$ 1,300

Useful life

6 years

L&W Holdings [Member]

Acquisitions [Abstract]

Percentage of entity acquired

100.00%

Fair Value of Consideration Transferred for Acquisition [Abstract]

Total cash consideration

$ 0

Shares issued in conjunction with acquisition

25,000

Total consideration

25,000

Previously held equity interest in equity method

Total

25,000

Fair Value of Assets Acquired [Abstract]

Total current assets

7,353

Fixed assets

114

Total current liabilities

(1,495)

Other non-current liabilities

(1,731)

Total identifiable net assets acquired

12,241

Goodwill

12,759

Total consideration and value to be allocated to net assets

25,000

L&W Holdings [Member] | Customer List [Member]

Fair Value of Assets Acquired [Abstract]

Intangible assets

6,500

Useful life

7 years

L&W Holdings [Member] | Order Backlog [Member]

Fair Value of Assets Acquired [Abstract]

Intangible assets

900

Useful life

4 months

L&W Holdings [Member] | Trademarks [Member]

Fair Value of Assets Acquired [Abstract]

Intangible assets

$ 600

Useful life

5 years

[1]

REVENUE RECOGNITION, Adoption of ASC Topic 606 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Adoption of ASC Topic 606 [Abstract]
Revenues	$ (704,190)	$ (550,101)	$ (1,320,409)	$ (1,049,200)
ASC Topic 606 [Member]
Adoption of ASC Topic 606 [Abstract]
Cumulative impact on opening retained earnings					$ 11,200
Impact of Adopting ASC Topic 606 [Member] \| ASC Topic 606 [Member]
Adoption of ASC Topic 606 [Abstract]
Revenues	$ (600)		$ (1,200)

REVENUE RECOGNITION, Contract Liabilities - Customer Loyalty Programs (Details)
$ in Thousands

6 Months Ended

Jun. 30, 2018

USD ($)

Contract Liabilities - Customer Loyalty Programs [Abstract]

Outstanding at beginning of period

$ 13,043

^[1]

Increase (Decrease) Attributed to [Abstract]

Customer loyalty deferrals

3,029

Customer loyalty redemptions/expirations

(1,802)

Outstanding at end of period

14,270

Calculated under Cost Provision Methodology [Member]

Contract Liabilities - Customer Loyalty Programs [Abstract]

Outstanding at beginning of period

1,900

Impact of Adopting ASC Topic 606 [Member]

Contract Liabilities - Customer Loyalty Programs [Abstract]

Outstanding at beginning of period

$ 11,200

[1]

SUBSEQUENT EVENTS (Details) - Argentina Subsidiary [Member] - Geographic Concentration Risk [Member] - Maximum [Member]	6 Months Ended
	Jun. 30, 2018
Net Revenues [Member]
Subsequent Events [Abstract]
Concentration percentage	2.00%
Total Assets [Member]
Subsequent Events [Abstract]
Concentration percentage	1.00%