Nu Skin Enterprises (NUS) 10-K 27 Feb 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 31, 2017	Jun. 30, 2016
Entity Information [Line Items]
Entity Registrant Name	NU SKIN ENTERPRISES INC
Entity Central Index Key	1,021,561
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
Entity Public Float			$ 2,510
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016
Common Class A [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		52,569,172
Common Class B [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		0

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 357,246	$ 289,354
Current investments	10,880	14,371
Accounts receivable	31,199	35,464
Inventories, net	249,936	265,256
Prepaid expenses and other	65,076	101,947
Total Current Assets	714,337	706,392
Property and equipment, net	444,732	454,537
Goodwill	114,954	112,446
Other intangible assets, net	63,553	67,009
Other assets	136,469	165,459
Total assets	1,474,045	1,505,843
Current liabilities
Accounts payable	41,261	28,832
Accrued expenses	275,023	310,916
Current portion of long-term debt	82,727	67,849
Total Current Liabilities	399,011	407,597
Long-term debt	334,165	181,745
Other liabilities	76,799	90,880
Total liabilities	809,975	680,222
Commitments and contingencies (Notes 10 and 20)
Stockholders' equity
Class A common stock - 500 million shares authorized, $.001 par value, 90.6 million shares issued	91	91
Additional paid-in capital	439,635	419,921
Treasury stock, at cost - 34.6 million and 38.0 million shares	(1,250,123)	(1,017,063)
Accumulated other comprehensive loss	(84,122)	(71,269)
Retained earnings	1,558,589	1,493,941
Total stockholders' equity	664,070	825,621
Total liabilities and stockholders' equity	$ 1,474,045	$ 1,505,843

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Millions	Dec. 31, 2016	Dec. 31, 2015
Stockholders' equity:
Common stock, shares authorized (in shares)	500	500
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)	38	34.6

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Consolidated Statements of Income [Abstract]
Revenue	$ 2,207,797	$ 2,247,047	$ 2,569,495
Cost of sales	500,457	489,510	478,434
Gross profit	1,707,340	1,757,537	2,091,061
Operating expenses:
Selling expenses	922,083	951,372	1,116,572
General and administrative expenses	554,153	561,463	622,301
Total operating expenses	1,476,236	1,512,835	1,738,873
Operating income	231,104	244,702	352,188
Other income (expense), net (Note 22)	(18,265)	(32,743)	(53,681)
Income before provision for income taxes	212,839	211,959	298,507
Provision for income taxes	69,753	78,913	109,331
Net income	$ 143,086	$ 133,046	$ 189,176
Net income per share:
Basic (in dollars per share)	$ 2.58	$ 2.29	$ 3.20
Diluted (in dollars per share)	$ 2.55	$ 2.25	$ 3.11
Weighted-average common shares outstanding:
Basic (in shares)	55,412	57,997	59,073
Diluted (in shares)	56,097	59,057	60,887

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 143,086	$ 133,046	$ 189,176
Other comprehensive income:
Foreign currency translation adjustment, net of taxes of $420, $114 and $2,483, respectively	(13,127)	(18,967)	(5,113)
Net unrealized gains/(losses) on foreign currency cash flow hedges, net of taxes of $(869), $(325) and $784, respectively	(1,423)	590	1,578
Less: Reclassification adjustment for realized losses/(gains) in current earnings, net of taxes of $968, $756 and $(935), respectively	1,697	(1,371)	(1,758)
Total other comprehensive income	(12,853)	(19,748)	(5,293)
Comprehensive income	$ 130,233	$ 113,298	$ 183,883

Consolidated Statements of Com6

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other comprehensive income:
Foreign currency translation adjustment, tax	$ 2,483	$ 114	$ 420
Net unrealized gains/(losses) on foreign currency cash flow hedges, tax	784	(325)	(869)
Reclassification adjustment for realized losses/(gains) in current earnings, tax	$ (935)	$ 756	$ 968

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]Class A [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]	Total	Class A [Member]
Balance at beginning of period at Dec. 31, 2013	$ 91	$ 397,383	$ (826,904)	$ (46,228)	$ 1,334,277	$ 858,619
Stockholders' Equity [Roll Forward]
Net income	0	0	0	0	189,176	189,176
Other comprehensive income, net of tax	0	0	0	(5,293)	0	(5,293)
Repurchase of Class A common stock (Note 11)	0	0	(45,724)	0	0	(45,724)	$ (45,724)
Exercise of employee stock options/vesting of stock awards	0	(12,440)	10,020	0	0	(2,420)
Excess tax benefit from equity awards	0	11,947	0	0	0	11,947
Stock-based compensation	0	17,504	0	0	0	17,504
Cash dividends	0	0	0	0	(81,371)	(81,371)
Balance at end of period at Dec. 31, 2014	91	414,394	(862,608)	(51,521)	1,442,082	942,438
Stockholders' Equity [Roll Forward]
Net income	0	0	0	0	133,046	133,046
Other comprehensive income, net of tax	0	0	0	(19,748)	0	(19,748)
Repurchase of Class A common stock (Note 11)	0	0	(164,094)	0	0	(164,094)	(164,094)
Exercise of employee stock options/vesting of stock awards	0	(6,324)	9,639	0	0	3,315
Excess tax benefit from equity awards	0	4,451	0	0	0	4,451
Stock-based compensation	0	7,400	0	0	0	7,400
Cash dividends	0	0	0	0	(81,187)	(81,187)
Balance at end of period at Dec. 31, 2015	91	419,921	(1,017,063)	(71,269)	1,493,941	825,621
Stockholders' Equity [Roll Forward]
Net income	0	0	0	0	143,086	143,086
Other comprehensive income, net of tax	0	0	0	(12,853)	0	(12,853)
Repurchase of Class A common stock (Note 11)	0	0	(247,208)	0	0	(247,208)	$ (247,208)
Exercise of employee stock options/vesting of stock awards	0	159	14,148	0	0	14,307
Excess tax benefit from equity awards	0	3,840	0	0	0	3,840
Stock-based compensation	0	8,890	0	0	0	8,890
Equity component of convertible note issuance (net)	0	6,825	0	0	0	6,825
Cash dividends	0	0	0	0	(78,438)	(78,438)
Balance at end of period at Dec. 31, 2016	$ 91	$ 439,635	$ (1,250,123)	$ (84,122)	$ 1,558,589	$ 664,070

Consolidated Statements of Sto8

Consolidated Statements of Stockholder's Equity (Parenthetical) - shares shares in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stockholders' Equity [Roll Forward]
Employee stock options (in shares)	1.1	0.7	0.8

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income	$ 143,086	$ 133,046	$ 189,176
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	72,397	71,365	54,924
Japan customs expense	31,355	0	0
Foreign currency (gains)/losses	8,863	27,235	53,828
Stock-based compensation	8,890	7,400	17,504
Deferred taxes	(17,652)	17,362	10,399
Changes in operating assets and liabilities:
Accounts receivable	3,357	(2,246)	30,766
Inventories, net	9,801	59,652	(16,518)
Prepaid expenses and other	37,789	13,572	(25,167)
Other assets	(3,969)	(15,752)	(16,219)
Accounts payable	13,443	(4,297)	(45,953)
Accrued expenses	(33,624)	15,902	(309,180)
Other liabilities	1,527	(1,130)	(24)
Net cash provided by (used in) operating activities	275,263	322,109	(56,464)
Cash flows from investing activities:
Purchases of property and equipment	(50,221)	(56,622)	(101,476)
Proceeds on investment sales	18,132	11,526	27,328
Purchases of investments	(17,080)	(15,750)	(17,522)
Acquisitions	(8,692)	0	0
Net cash used in investing activities	(57,861)	(60,846)	(91,670)
Cash flows from financing activities:
Payment of cash dividends	(78,438)	(81,187)	(81,371)
Repurchase of shares of common stock	(247,208)	(164,094)	(45,724)
Exercise of employee stock options and taxes paid related to the net shares settlement of stock awards	14,307	3,315	(2,420)
Income tax benefit of equity awards	5,651	5,337	11,801
Payments on long-term debt	(56,151)	(35,508)	(333,803)
Payment of debt issuance costs	(6,596)	0	(5,739)
Proceeds from long-term debt	233,721	36,217	416,180
Net cash used in financing activities	(134,714)	(235,920)	(41,076)
Effect of exchange rate changes on cash	(14,796)	(24,404)	(47,528)
Net increase (decrease) in cash and cash equivalents	67,892	939	(236,738)
Cash and cash equivalents, beginning of period	289,354	288,415	525,153
Cash and cash equivalents, end of period	$ 357,246	$ 289,354	$ 288,415

The Company

The Company	12 Months Ended
	Dec. 31, 2016
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 five geographic regions: Greater China, which consists of Mainland China, Hong Kong, Macau and Taiwan; North Asia, which consists of Japan and South Korea; South Asia/Pacific, which consists of Australia, Brunei, French Polynesia, Indonesia, Malaysia, New Caledonia, New Zealand, the Philippines, Singapore, Thailand and Vietnam; Americas, which consists of the United States, Canada and Latin America; 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 region are collectively referred to as the "Subsidiaries").

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Consolidation The consolidated financial statements include the accounts of the Company and the Subsidiaries. All significant intercompany accounts and transactions are eliminated in consolidation. Use of estimates The preparation of these financial statements, in conformity with accounting principles generally accepted in the United States of America, required management to make estimates and assumptions that affected the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results may differ from these estimates. Cash and cash equivalents Cash equivalents are short-term, highly liquid instruments with original maturities of 90 days or less. Inventories Inventories consist primarily of merchandise purchased for resale and are stated at the lower of standard cost or market, using a standard cost method which approximates the first-in, first-out method. The Company had adjustments to its inventory carrying value totaling $20.7 million and $8.0 million as of December 31, 2015 and 2016, respectively. The Company incurred a $37.9 million write-down of estimated surplus inventory primarily in the Greater China region in the third quarter of 2015 due to reduced expectations for future product sales. Inventories consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Raw materials $ 114,193 $ 108,276 Finished goods 151,063 141,660 $ 265,256 $ 249,936 Adjustments to inventories consist of the following (U.S. dollars in thousands): 2014 2015 2016 Beginning balance, adjustments to inventory carrying value $ 5,934 $ 56,034 $ 20,744 Additions 77,379 38,605 24,906 Write-offs (27,279 ) (73,895 ) (37,655 ) Ending balance, adjustments to inventory carrying value $ 56,034 $ 20,744 $ 7,995 Property and equipment Property and equipment are stated at cost less accumulated depreciation. Depreciation is recorded using the straight-line method over the following estimated useful lives: Buildings 39 years Furniture and fixtures 5 - 7 years Computers and equipment 3 - 5 years Leasehold improvements Shorter of estimated useful life or lease term Scanners 3 years Vehicles 3 - 5 years Expenditures for maintenance and repairs are charged to expense as incurred. When an asset is sold or otherwise disposed of, the cost and associated accumulated depreciation are removed from the accounts and the resulting gain or loss is recognized in the statement of income. Property and equipment are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. An impairment loss is recognized if the carrying amount of the asset exceeds its fair value. Goodwill and other intangible assets Goodwill is recorded when the cost of acquired businesses exceeds the fair value of the identifiable net assets acquired. Goodwill and intangible assets with indefinite useful lives are not amortized, but are assessed for impairment annually on June 30. In addition, impairment testing is conducted when events occur or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. Goodwill and intangible assets with indefinite useful lives would be written down to fair value if considered impaired. Guidance under Accounting Standards Codification ("ASC") 350, Intangibles - Goodwill and Other Revenue recognition Revenue is recognized when products are shipped, which is when title and risk of loss pass to the purchaser of the products. A reserve for product returns is accrued based on historical experience totaling $7.8 million and $6.1 million as of December 31, 2015 and 2016, respectively. During the years ended December 31, 2014, 2015 and 2016, the Company recorded sales returns of $83.6 million, $65.6 million and $61.2 million, respectively. The Company generally requires cash or credit card payment at the point of sale. Accounts receivable generally represents amounts due from credit card companies and are generally collected within a few days of the purchase. As such, the Company has determined that no allowance for doubtful accounts is necessary. Amounts received prior to shipment of products and title passage to the purchaser of the products are recorded as deferred revenue. The Company's sales compensation plans generally do not provide rebates or selling discounts for purchasing its products and services. The Company classifies selling discounts and rebates, if any, as a reduction of revenue at the time the sale is recorded. Through the Company's product subscription and loyalty programs, which can vary from market to market, participants who commit to purchases on a monthly basis receive a discount from suggested retail or wholesale prices, as applicable. The Company applies this discount at the time of each purchase and not through a larger discount on the initial purchase. Participants may cancel their commitment at any time, however some markets charge a one-time early cancellation fee. All purchases under these programs are subject to the Company's standard product payment and return policies. In accordance with ASC 605-50, the Company classifies selling discounts and rebates, as a reduction of revenue at the time the sale is recorded. Shipping and handling costs Shipping and handling costs are recorded as cost of sales and are expensed as incurred. Advertising expenses Advertising costs are expensed as incurred. Advertising expense incurred for the years ended December 31, 2014, 2015 and 2016 totaled $19.6 million, $11.0 million and $15.9 million, respectively. Selling expenses Selling expenses are the Company's most significant expense and are classified as operating expenses. Selling expenses include distributor commissions as well as wages, benefits, bonuses and other labor and unemployment expenses the Company pays to its sales force in Mainland China. In each of the Company's markets, except Mainland China, Sales Leaders can earn "multi-level" compensation under the Company's global sales compensation plan, including commissions for product sales to their consumer groups as well as the product sales made through the sales network they have developed and trained. The Company does not pay commissions on sales materials. Outside of Mainland China, the Company's distributors may make profits by purchasing the products from the Company at a discount and selling them to consumers with a mark-up. The Company does not account for nor pay additional commissions on these mark-ups received by distributors. In many markets, the Company also allows individuals who are not members of its sales force, referred to as "preferred customers," to buy products directly from the Company at a discount. The Company pays commissions on preferred customer purchases to the referring member of its sales force. Research and development Research and development costs are expensed as incurred and are included in general and administrative expenses in the accompanying consolidated statements of income and totaled $18.9 million, $20.1 million and $24.3 million in 2014, 2015 and 2016, respectively. Deferred tax assets and liabilities 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. Uncertain tax positions 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 2017 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 2010. However, statutes in certain countries may be as long as ten years for transfer pricing related issues. 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. A reconciliation of the beginning and ending amount of unrecognized tax benefits included in other liabilities is as follows (U.S. dollars in thousands): 2014 2015 2016 Gross balance at January 1 $ 7,484 $ 5,987 $ 7,772 Increases related to prior year tax positions ─ 1,677 185 Increases related to current year tax positions 2,700 1,119 918 Settlements ─ ─ (3,369 ) Decreases due to lapse of statutes of limitations (4,106 ) (667 ) (252 ) Currency adjustments (91 ) (344 ) 36 Gross balance at December 31 $ 5,987 $ 7,772 $ 5,290 At December 31, 2016, the Company had $5.3 million in unrecognized tax benefits of which $1.0 million, if recognized, would affect the effective tax rate. In comparison, at December 31, 2015, the Company had $7.8 million in unrecognized tax benefits of which $0.9 million, if recognized, would affect the effective tax rate. The Company's unrecognized tax benefits relate to multiple foreign and domestic jurisdictions. There are potential changes in unrecognized tax benefits from the multiple jurisdictions in which the Company operates, as well as the expiration of various statutes of limitation and possible completion of tax examinations; however, the Company does not anticipate that total unrecognized tax benefits will significantly change over the next 12 months. During the years ended December 31, 2014, 2015 and 2016, the Company recognized $0.4 million, $0.4 million and $(0.8) million, respectively in interest and penalties expenses/(benefits). The Company had $1.3 million, $1.7 million and $0.9 million of accrued interest and penalties related to uncertain tax positions at December 31, 2014, 2015 and 2016, respectively. Interest and penalties related to uncertain tax positions are recognized as a component of income tax expense. 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 (Note 11). Foreign currency translation A significant portion of the Company's business operations occur outside of the United States. The local currency of each of the Company's Subsidiaries is considered its functional currency, except for the Company's subsidiaries in Singapore and Venezuela where the U.S. dollar is used. All assets and liabilities are translated into U.S. dollars at exchange rates existing at the balance sheet dates, revenue and expenses are translated at weighted-average exchange rates and stockholders' equity is recorded at historical exchange rates. The resulting foreign currency translation adjustments are recorded as a separate component of stockholders' equity in the consolidated balance sheets and transaction gains and losses are included in other income and expense in the consolidated financial statements. Net of tax, the accumulated other comprehensive loss related to the foreign currency translation adjustments are $52.6 million (net of tax of $10.8 million), $71.6 million (net of tax of $10.9 million) and $84.7 million (net of tax of $13.4 million), at December 31, 2014, 2015 and 2016, respectively. Classification of Venezuela as a Highly Inflationary Economy and Devaluation of Its Currency The Company commenced operations in Venezuela in 2007, where it markets a variety of personal care and nutritional products. Total assets in Venezuela as of December 31, 2015 and 2016 are $7.9 million and zero, of which $4.3 million and zero are monetary assets in each year, respectively. The Venezuela subsidiary also had a $33.7 million and zero intercompany balance to its parent company as of December 31, 2015 and 2016, respectively, with respect to charges for inventory, commissions, license fees and service fees. The Company imports all of its products into Venezuela from the United States. Venezuela represents a very small portion of the Company's overall business with sales during 2014, 2015 and 2016 representing approximately 1.0%, 0.2% and 0.1% of the Company's overall revenue, respectively. Since 2010, Venezuela has been considered a highly inflationary economy. A country is considered to have a highly inflationary economy if it has a cumulative inflation rate of approximately 100% or more over a three-year period as well as other qualitative factors including historic inflation rate trends (increasing and decreasing), the capital intensiveness of the operation and other pertinent economic factors. The functional currency in highly inflationary economies is required to be the functional currency of the entity's parent company (which for the Company's Venezuela subsidiary is the U.S. dollar), and transactions denominated in the local currency are remeasured to the functional currency. The remeasurement of bolivars into U.S. dollars creates foreign currency transaction gains or losses, which the Company includes in its consolidated statement of income. The Venezuela subsidiary did not transition to highly inflationary status until the first quarter of 2014. As a result, the Company continued to account for the Venezuela subsidiary as a bolivar functional currency entity, rather than a U.S. dollar functional currency entity. In the first quarter of 2014, the Company began to account for this subsidiary as highly inflationary, and therefore changed the functional currency of the entity to the U.S. dollar. The consolidated statement of income for the year ended December 31, 2014, includes an out-of-period adjustment of $6.3 million to correct this error as it was not deemed to be material to the current or prior period financial statements. During the first quarter of 2014, two new foreign exchange mechanisms ("SICAD I" and "SICAD II") became available in Venezuela. As of March 31, 2014, the Company determined it would be most appropriate for it to utilize the SICAD I rate, which was approximately 10.7 bolivars per U.S. dollar. As a result of the adoption of this rate during the period ended March 31, 2014, the Company recorded a $14.7 million charge in Other Income (Expense) to reflect foreign currency transaction losses on its net monetary assets denominated in bolivar, which is reflected in the year ended December 31, 2014. As of June 30, 2014, the Company determined that it would be most appropriate for it to utilize the SICAD II rate, which was approximately 50 bolivars per U.S. dollar, as the Company had not been successful in getting approval under SICAD I and believed the SICAD II rate better reflected the rate at which the Company would be able to convert bolivars to U.S. dollars. As a result of the adoption of this rate during the three months ended June 30, 2014, the Company recorded an additional $25.3 million charge in Other Income (Expense) to reflect additional foreign currency translation losses on its net monetary assets denominated in bolivar, which is reflected in the year ended December 31, 2014. In the first quarter of 2015, a new foreign exchange mechanism ("SIMADI") was announced, which utilizes a variable exchange rate that was approximately 193 bolivars per U.S. dollar as of March 31, 2015. As a result of this new exchange mechanism, in 2015, the Company recorded charges totaling $10.2 million in other income (expense) to reflect additional foreign currency translation losses on its net monetary assets denominated in bolivars. The current operating environment in Venezuela continues to be challenging, with high inflation in the country, government restrictions on foreign exchange and pricing controls, and the possibility of the government announcing further devaluations to its currency. Currency restrictions enacted by the Venezuelan government have impacted the ability of the Company to exchange foreign currency at the official rate to pay for imported products, license fees, commissions and other service fees. T Fair value of financial instruments 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 December 31, 2016 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. As of December 31, 2015 and 2016, the long-term debt fair value is $252.4 million and $497.4 million, respectively. The estimated fair value of the Company's debt is based on interest rates available for debt with similar terms and remaining maturities. The fair value of the Convertible Note is highly dependent upon the Company's stock price at the valuation date. 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 many financial instruments and certain other items at fair value. The Company has elected not to apply the fair value option to existing eligible items. Stock-based compensation All share-based payments, including grants of stock options and restricted stock units, are required to be recognized in the Company's financial statements based upon their respective grant date fair values. The Black-Scholes option-pricing model is used to estimate the fair value of stock options. The determination of the fair value of stock options is affected by the Company's stock price and a number of assumptions, including expected volatility, expected life, risk-free interest rate and expected dividends. The Company uses historical volatility as the expected volatility assumption required in the Black-Scholes model. The expected life of the stock options is based on historical data trended into the future. The risk-free interest rate assumption is based on observed interest rates appropriate for the expected terms of the Company's stock options. The fair value of the Company's restricted stock units is based on the closing market price of its stock on the date of grant less the Company's expected dividend yield. The total compensation expense related to equity compensation plans was $17.5 million, $7.4 million and $8.9 million for the years ended December 31, 2014, 2015 and 2016, respectively. In 2014, 2015 and 2016, these amounts reflect the reversal of $4.7 million, $7.6 million and $9.6 million, respectively, for certain performance based awards that were no longer expected to vest. For the years ended December 31, 2014, 2015 and 2016, all stock-based compensation expense was recorded within general and administrative expenses. Reporting comprehensive income Comprehensive income is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources, and it includes all changes in equity during a period except those resulting from investments by owners and distributions to owners. Accounting for derivative instruments and hedging activities The Company recognizes all derivatives as either assets or liabilities, with the instruments measured at fair value. Portions of the Company's Japanese yen borrowings prior to its October 2014 refinancing were designated, and were effective as, economic hedges of the net investment in its foreign operations. Accordingly, foreign currency transaction gains or losses due to spot rate fluctuations on these debt instruments were included in foreign currency translation adjustments within other comprehensive income. Included in the cumulative translation adjustment are $1.4 million, zero and zero pretax net gains for the years ended December 31, 2014, 2015 and 2016, respectively, from Japanese yen borrowings. Additionally, the Company's Subsidiaries enter into significant transactions with each other and third parties that may not be denominated in the respective Subsidiaries' functional currencies. The Company regularly monitors its foreign currency risks and seeks to reduce its exposure to fluctuations in foreign exchange rates using foreign currency exchange contracts and through certain intercompany loans of foreign currency. Hedge effectiveness is assessed at inception and throughout the life of the hedge to ensure the hedge qualifies for hedge accounting treatment. Changes in fair value associated with hedge ineffectiveness, if any, are recorded in the results of operations currently. In the event that an anticipated transaction is no longer likely to occur, the Company recognizes the change in fair value of the derivative in its results of operations currently. Changes in the fair value of derivatives are recorded in current earnings or accumulated other comprehensive loss, depending on the intended use of the derivative and its resulting designation. The gains and losses in accumulated other comprehensive loss stemming from these derivatives will be reclassified into earnings in the period during which the hedged forecasted transaction affects earnings. The fair value of the receivable and payable amounts related to these unrealized gains and losses is classified as other current assets and liabilities. The Company does not use such derivative financial instruments for trading or speculative purposes. Gains and losses on certain intercompany loans of foreign currency are recorded as other income and expense in the consolidated statements of income. Recent accounting pronouncements In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements — Going Concern (Subtopic 205-40). The purpose of this ASU is to incorporate into U.S. GAAP management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern within one year after the date that the financial statements are issued, and to provide related footnote disclosures. This ASU was effective for the fiscal year ended December 31, 2016 and did not have a significant impact on the Company’s consolidated financial statements or the accompanying disclosures. In April 2015, the FASB issued ASU 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs Interest - Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs associated with Line-of-Credit Arrangements In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory In February 2016, the FASB issued ASU 2016-02, Leases (Subtopic 842) In March 2016, the FASB issued ASU 2016-09, Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting 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 Statement of Cash Flows (Topic 230): Restricted Cash. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a 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 goodwill 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.

Prepaid Expenses and Other

Prepaid Expenses and Other	12 Months Ended
	Dec. 31, 2016
Prepaid Expenses and Other [Abstract]
Prepaid Expenses and Other	3. Prepaid Expenses and Other Prepaid expenses and other consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Deferred charges $ 14,940 $ 9,319 Prepaid income taxes 40,407 6,799 Prepaid inventory and import costs 10,573 10,857 Prepaid rent, insurance and other occupancy costs 11,590 13,398 Prepaid promotion and event cost 4,486 4,126 Prepaid other taxes 4,146 4,778 Forward contracts 485 1,371 Deposits 1,513 1,079 Other 13,807 13,349 $ 101,947 $ 65,076

Property and Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2016
Property and Equipment [Abstract]
Property and Equipment	4. Property and Equipment Property and equipment are comprised of the following (U.S. dollars in thousands): December 31, 2015 2016 Land $ 33,610 $ 33,158 Buildings 272,208 266,436 Construction in progress (1) 7,827 31,124 Furniture and fixtures 81,274 82,194 Computers and equipment 141,079 143,014 Leasehold improvements 116,120 109,863 Scanners 11,805 10,578 Vehicles 2,207 2,090 666,130 678,457 Less: accumulated depreciation (211,593 ) (233,725 ) $ 454,537 $ 444,732 (1) Construction in progress includes $0.7 million and $25.8 million as of December 31, 2015 and 2016, respectively, of eligible capitalized internal-use software development costs which will be reclassified to computers and equipment when placed into service. Depreciation of property and equipment totaled $46.5 million, $61.6 million and $60.8 million for the years ended December 31, 2014, 2015 and 2016, respectively.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2016
Goodwill and Other Intangible Assets [Abstract]
Goodwill and Other Intangible Assets	5. Goodwill and Other Intangible Assets Goodwill and other intangible assets consist of the following (U.S. dollars in thousands): Carrying Amount at December 31, Goodwill and indefinite life intangible assets: 2015 2016 Goodwill $ 112,446 $ 114,954 Trademarks and trade names 24,599 24,599 Other indefinite lived intangibles — 3,763 $ 137,045 $ 143,316 December 31, 2015 December 31, 2016 Finite life intangible assets: Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Weighted-average Amortization Period Scanner technology $ 46,482 $ 33,590 $ 46,482 $ 36,624 18 years Developed technology 22,500 17,558 22,500 18,383 20 years Distributor network 11,598 11,096 11,598 11,598 15 years Trademarks 2,409 879 2,592 1,011 15 years Other 45,315 22,771 46,219 26,584 8 years $ 128,304 $ 85,894 $ 129,391 $ 94,200 15 years Amortization of finite-life intangible assets totaled $8.4 million, $8.6 million and $8.4 million for the years ended December 31, 2014, 2015 and 2016, respectively. In the year ended December 31, 2015, the Company wrote-off approximately $12.0 million of fully amortized intangible assets. The estimated annual amortization expense for each of the five succeeding fiscal years are as follows (U.S. dollars in thousands): Year Ending December 31, 2017 $ 8,460 2018 8,650 2019 8,480 2020 4,160 2021 2,730

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2016
Other Assets [Abstract]
Other Assets	6. Other Assets Other assets consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Deferred taxes $ 40,373 $ 35,752 Deposits for noncancelable operating leases 39,016 38,858 Deposit for customs assessment 35,424 — Cash surrender value for life insurance policies 27,292 32,286 Other 23,354 29,573 $ 165,459 $ 136,469

Accrued Expenses

Accrued Expenses	12 Months Ended
	Dec. 31, 2016
Accrued Expenses [Abstract]
Accrued Expenses	7. Accrued Expenses Accrued expenses consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Accrued sales force commissions and other payments $ 166,273 $ 126,153 Accrued other taxes 35,922 31,748 Accrued payroll and other employee expenses 24,390 25,412 Accrued payable to vendors 40,914 28,456 Accrued royalties 9,701 4,767 Sales return reserve 7,752 6,125 Deferred revenue 6,644 13,494 Other 19,320 38,868 $ 310,916 $ 275,023

Other Liabilities

Other Liabilities	12 Months Ended
	Dec. 31, 2016
Other Liabilities [Abstract]
Other Liabilities	8. Other Liabilities Other liabilities consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Deferred tax liabilities $ 16,177 $ 643 Reserve for other tax liabilities 9,463 6,264 Reserve for customs assessment 3,600 — Liability for deferred compensation plan 33,456 36,730 Pension plan benefits reserve 4,859 5,631 Build to suit – financing obligation 10,238 9,543 Deferred rent and deferred tenant incentives 6,336 5,952 Asset retirement obligation 4,682 5,682 Other 2,069 6,354 $ 90,880 $ 76,799

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2016
Long-Term Debt [Abstract]
Long-Term Debt	9. Long-Term Debt Credit Agreement On October 9, 2014, the Company entered into a Credit Agreement (the "Credit Agreement") with various financial institutions, and Bank of America, N.A. as administrative agent. The Credit Agreement provides 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, and as of December 31, 2015 and 2016, the Company had an outstanding balance of $47.5 million on the revolving credit facility. Any additional amounts drawn under the revolving credit facility will bear interest at rates that will be determined in accordance with the Credit Agreement. The Credit Agreement requires that the Company maintains 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. The Company believes these covenants provide it with greater flexibility to pay dividends and repurchase stock. The Company is in compliance with its debt covenants. 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 are senior unsecured obligations which will rank equal in right of payment to all senior unsecured indebtedness of the Company, and will rank senior in right of payment to any indebtedness that is contractually subordinated to the Convertible Notes. Interest on the Convertible Notes is payable semiannually in arrears on June 15 and December 15 of each year, beginning on December 15, 2016 at a rate of 4.75% per annum. The Convertible Notes mature on June 15, 2020, unless repurchased or converted prior to maturity. Prior to the stated maturity date, the Company may, 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 is equal to or exceeds 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 may, at its option, cause the Company to repurchase all of such Holder's Convertible Notes or any portion thereof that is 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 are defined in the indenture governing the Convertible Notes. In addition, each holder of the Convertible Notes shall have 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 will 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 may 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 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, which represents 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 does not require separate accounting treatment as a derivative instrument because it is both indexed to the Company's own stock and would be classified in stockholders' equity if freestanding. The Equity Component will not be remeasured as long as it continues to meet the conditions for equity classification. The excess of the principal amount of the Liability Component over its carrying amount (the "Debt Discount") will be amortized to interest expense over the term of the Convertible Notes. As a result, the Liability Component will be 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 is approximately 7.1% per annum. The net carrying amount of the Liability Component is as follows (U.S. dollars in thousands): December 31, 2016 Principal $ 210,000 Unamortized debt discount (conversion option) (9,622 ) Total long-term debt, net 200,378 Unamortized debt discount (issuance costs) (5,506 ) Net carrying amount $ 194,872 The net carrying amount of the Liability Component was recorded to long-term debt within the Company's consolidated balance sheet. 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 is being amortized over the contractual term of the Convertible Notes using the effective interest method. During the year ended December 31, 2016, the Company recognized $7.5 million in interest expense related to the Convertible Notes, which included $5.4 million of contractual interest and $2.1 million in amortization of debt issuance costs and in amortization of the Debt Discount. The following table summarizes the Company's debt facilities as of December 31, 2015 and 2016: Facility or Arrangement Original Principal Amount Balance as of December 31, 2015 Balance as of December 31, 2016 (1)(2) Interest Rate Repayment terms Credit Agreement term loan facility: U.S. dollar denominated: $127.5 million $118.7 million $108.4 million Variable 30 day: 3.52% One half of the principal amount payable in increasing quarterly installments over a five-year period beginning on December 31, 2014, with the remainder payable at the end of the five-year term. Japanese yen denominated: 6.6 billion yen 6.1 billion yen ($51.1 million as of December 31, 2015) 5.6 billion yen ($47.9 million as of December 31, 2016) Variable 30 day: 2.75% One half of the principal amount payable in increasing quarterly installments over a five-year period beginning on December 31, 2014, with the remainder payable at the end of the five-year term. Credit Agreement revolving credit facility: $47.5 million $47.5 million Variable 30 day: 3.52% Revolving line of credit expires October 2019. Korean subsidiary loan: $20.0 million $20.0 million $10.0 million 1.12% Remaining balance payable on March 16, 2018. Japan subsidiary loan: 2.0 billion yen 2.0 billion yen ($16.6 million as of December 31, 2015) 1.3 billion yen ($11.4 million as of December 31, 2016) 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 payable on June 15, 2020. (1) As of December 31, 2016, the current portion of the Company's debt (i.e. becoming due in the next 12 months) included $13.5 million of the balance of its U.S. dollar denominated debt under the Credit Agreement facility, $6.0 million of the balance of its Japanese yen-denominated debt under the Credit Agreement facility, $10.0 million of the Korea subsidiary loan and $5.7 million of the Japan subsidiary loan. The Company has classified the $47.5 million borrowed under the revolving line of credit and the $10.0 million of the Korea subsidiary loan 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 as well as pay off the Korea subsidiary loan in 2017. (2) The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $12.8 million and debt issuance costs of $5.5 million (consisting of $15.1 million related to the Convertible Note and $3.2 million related to the credit agreement), which is not reflected in this table. Interest expense relating to debt totaled $5.7 million, $7.9 million and $15.6 million for the years ended December 31, 2014, 2015 and 2016, respectively. Maturities of all long-term debt at December 31, 2016, based on the year-end exchange rate, are as follows (U.S. dollars in thousands): Year Ending December 31, 2017 $ 82,727 2018 29,840 2019 112,611 2020 210,000 2021 ─ Thereafter ─ Total (1) $ 435,178 (1) The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $18.3 million, which is not reflected in this table.

Lease and Financing Obligations

Lease and Financing Obligations	12 Months Ended
	Dec. 31, 2016
Lease and Financing Obligations [Abstract]
Lease and Financing Obligations	10. Lease and Financing Obligations In 2014, the Company's subsidiary in South Korea entered into a lease agreement (the "Lease") with a third-party landlord for a new regional headquarters. As part of the Lease, the landlord agreed to renovate an existing building (the "Existing Building") and construct a new building (the "New Building") adjacent to the Existing Building. The Lease provided that when such renovations and construction were completed, the Company and the landlord would enter into a new lease agreement (the "New Lease") for the Existing Building and the New Building. In April 2015, the Company and the landlord entered into the New Lease on terms generally consistent with the 2014 lease. The New Lease term is for the period May 1, 2015 through April 30, 2025, with an option to extend the agreement for 10 years. The Company accounts for its lease of the Existing Building as an operating lease. As an inducement to enter into the Lease, the landlord agreed to make certain improvements on behalf of the Company to the Existing Building. The improvements have been accounted for by the Company as a tenant incentive. The Company has concluded that it is the deemed owner (for accounting purposes only) of the New Building during the construction period under build-to-suit lease accounting. Construction of the New Building began in June 2014 and was completed in June 2015. During the construction period, the Company recorded estimated project construction costs as a construction in progress asset in "Property and equipment, net" and a corresponding long-term liability in "Other liabilities," respectively, in its consolidated balance sheets. In addition, the amounts that the Company has paid or incurred for normal tenant improvements were also recorded to the construction-in-progress asset. At the end of the construction period in June 2015, the Company concluded that the New Lease of the New Building did not meet "sale-leaseback" criteria; therefore, the asset and obligation recognized during construction will remain recorded in the Company's consolidated balance sheets. As of December 31, 2015, the completed building and normal tenant improvements under the lease have been reclassified from construction in progress to buildings and leasehold improvements, respectively. The Company accounts for the New Lease of the New Building as a financing with the associated lease payments allocated between the New Building and the underlying parcel of land on a relative fair value basis. Rent expense attributed to the underlying parcel of land, and representing the imputed cost to lease the land, is accounted for on a straight-line basis as the land element is an operating lease. Lease payments attributed to the New Building are allocated between principal and interest expense using the effective interest method. The principal portion of the lease payment attributed to the New Building is reflected as a principal reduction of the financing obligation. In addition, the asset, which represents the total estimated cost of construction of the New Building at the end of the construction period, is being depreciated over the initial ten-year term of the New Lease to its expected residual value. At the conclusion of the New Lease, the Company will de-recognize both the net book value of the asset and the unamortized portion of the financing obligation. The amount of asset depreciation and financing obligation amortization is structured at the outset such that the remaining residual book value of the asset is equal to the remaining financing obligation at the end of the lease term. As of December 31, 2015, the Company had recognized $19.9 million as the value of the New Building offset by accumulated depreciation of $0.3 million and a financing obligation in the amount of $10.6 million, net of a $9.3 million deposit paid directly to the landlord, as part of Other liabilities in its consolidated balance sheet. As of December 31, 2016, the Company had recognized $18.9 million as the value of the New Building offset by accumulated depreciation of $0.8 million and a financing obligation of $10.0 million, net of a $9.1 million deposit paid directly to the landlord, as part of other liabilities in its consolidated balance sheet. As of December 31, 2015, the tenant incentive asset and deferred tenant incentive liability associated with the Existing Building totaled $5.6 million and $5.1 million, respectively. As of December 31, 2016, the tenant incentive asset and deferred tenant incentive liability associated with the Existing Building totaled $4.9 million and $4.5 million, respectively. In addition to the lease arrangements described above, the Company leases office space and computer hardware under noncancelable long-term operating leases. Most leases include renewal options of at least three years. Minimum future operating leases and financing obligations at December 31, 2016 are as follows (U.S. dollars in thousands): Year Ending December 31, Operating Leases Financing Obligations 2017 $ 36,180 $ 631 2018 30,001 650 2019 21,310 670 2020 11,602 690 2021 5,997 698 Thereafter 15,127 2,502 Total minimum lease payments $ 120,217 $ 5,841 Rent expense for operating leases totaled $52.3 million, $52.4 million, and $48.2 million for the years ended December 31, 2014, 2015 and 2016, respectively. Interest expense associated with the financing obligations was zero, $0.1 million and $0.2 million for the years ended December 31, 2014, 2015 and 2016, respectively

Capital Stock

Capital Stock	12 Months Ended
	Dec. 31, 2016
Capital Stock [Abstract]
Capital Stock	11. Capital Stock The Company's authorized capital stock consists of 25 million shares of preferred stock, par value $.001 per share, 500 million shares of Class A common stock, par value $.001 per share, and 100 million shares of Class B common stock, par value $.001 per share. The shares of Class A common stock and Class B common stock are identical in all respects, except for voting rights and certain conversion rights and transfer restrictions, as follows: (1) each share of Class A common stock entitles the holder to one vote on matters submitted to a vote of the Company's stockholders and each share of Class B common stock entitles the holder to ten votes on each such matter; (2) stock dividends of Class A common stock may be paid only to holders of Class A common stock and stock dividends of Class B common stock may be paid only to holders of Class B common stock; (3) if a holder of Class B common stock transfers such shares to a person other than a permitted transferee, as defined in the Company's Certificate of Incorporation, such shares will be converted automatically into shares of Class A common stock; and (4) Class A common stock has no conversion rights; however, each share of Class B common stock is convertible into one share of Class A common stock, in whole or in part, at any time at the option of the holder. All outstanding Class B shares have been converted to Class A shares. As of December 31, 2015 and 2016, there were no preferred or Class B common shares outstanding. Weighted-average common shares outstanding The following is a reconciliation of the weighted-average common shares outstanding for purposes of computing basic and diluted net income per share (in thousands): Year Ended December 31, 2014 2015 2016 Basic weighted-average common shares outstanding 59,073 57,997 55,412 Effect of dilutive securities: Stock awards and options 1,814 1,060 683 Convertible note — — 2 Diluted weighted-average common shares outstanding 60,887 59,057 56,097 For the years ended December 31, 2014, 2015 and 2016, other stock options totaling 2.7 million, 1.8 million and 2.0 million, respectively, were excluded from the calculation of diluted earnings per share because they were anti-dilutive. The convertible note has a dilutive impact on EPS when the average market price of the Company's common stock for a given period exceeds the initial conversion price. See Note 9 for discussion of initial conversion price and conversion rate. Repurchases of common stock In 1998, the Company's board of directors approved a stock repurchase plan authorizing the Company to repurchase $10.0 million of its outstanding shares of Class A common stock on the open market or in private transactions. The Company's board from time to time increased the amount authorized under the 1998 stock repurchase plan, including an increase of $400.0 million announced in August 2013. In October 2015, the Company's board terminated the 1998 stock repurchase plan and approved a new repurchase plan with an initial authorization amount of $500.0 million. The repurchases are used primarily for strategic initiatives and to offset dilution from the Company's equity incentive plans and from conversion of the Convertible Notes. During the years ended December 31, 2014, 2015 and 2016, the Company repurchased 0.8 million, 3.8 million and 4.5 million shares of Class A common stock for an aggregate price of $45.7 million, $164.1 million and $247.2 million, respectively. At December 31, 2016, $199.7 million was available for repurchases under the 2015 stock repurchase plan.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2016
Stock-Based Compensation [Abstract]
Stock-Based Compensation	12. Stock–Based Compensation At December 31, 2016, the Company had the following stock-based employee compensation plans: Equity Incentive Plans In April 2010, the Company's Board of Directors approved the Nu Skin Enterprises, Inc. 2010 Omnibus Incentive Plan (the "2010 Omnibus Incentive Plan"). This plan was approved by the Company's stockholders at the Company's 2010 Annual Meeting of Stockholders held in May 2010. The 2010 Omnibus Incentive Plan provides for granting of a variety of equity based awards including stock options, stock appreciation rights, restricted stock, restricted stock units, other share based awards, performance cash, performance shares and performance units to executives, other employees, independent consultants and directors of the Company and its subsidiaries. Options granted under the 2010 Omnibus Incentive Plan are generally non-qualified stock options, but the 2010 Omnibus Incentive Plan permits some stock options granted to qualify as "incentive stock options" under the U.S. Internal Revenue Code. The exercise price of a stock option generally is equal to the fair market value of the Company's common stock on the stock option grant date. The contractual term of a stock option granted under the 2010 Omnibus Incentive Plan is seven years. Currently, all shares issued upon the exercise of stock options are from the Company's treasury shares. Subject to certain adjustments, 7.0 million shares were authorized for issuance under the 2010 Omnibus Incentive Plan. On June 3, 2013, the Company's stockholders approved an Amended and Restated 2010 Omnibus Incentive Plan, which among other things increased the number of shares available for awards by 3.2 million shares. On May 24, 2016, the Company's stockholders approved a Second Amended and Restated 2010 Omnibus Incentive Plan, which among other things increased the number of shares available for awards by 3.8 million shares. In July 2013, the compensation committee of the board of directors approved the grant of performance stock options to certain key employees under the Amended and Restated 2010 Omnibus Incentive Plan. Vesting for the options is performance based, with the options vesting in four installments if the Company's earnings per share equal or exceed the four established performance levels, measured in terms of diluted earnings per share. One fourth of the options will vest upon earnings per share meeting or exceeding the first performance level, one fourth of the options will vest upon earnings per share meeting or exceeding the second performance level, one fourth of the options will vest upon earnings per share meeting or exceeding the third performance level and one fourth of the options will vest upon earnings per share meeting or exceeding the fourth performance level. The unvested options will terminate upon the Company's failure to meet certain performance thresholds for each of years 2013 through 2019. In addition, all unvested options will terminate on March 30, 2020. The Company records an expense each period for the estimated amount of expense associated with the Company's projected achievement of the performance based targets. The Company recognized $5.2 million of expense, $6.4 million of income and $7.5 million of income related to these awards in 2014, 2015 and 2016, respectively. The amounts in 2014, 2015 and 2016 reflect the reversal of stock compensation for awards no longer expected to vest. The Company has also issued other performance-based awards to a limited number of participants that similarly vest, or become eligible for vesting, upon achievement of various performance targets. The fair value of stock option awards was estimated using the Black-Scholes option-pricing model with the following assumptions and weighted-average fair values as follows: December 31, Stock Options 2014 2015 2016 Weighted average grant date fair value of grants $ 23.01 $ 16.26 $ 12.59 Risk-free interest rate (1) 1.7% 1.7% 1.4% Dividend yield (2) 1.9% 2.1% 2.3% Expected volatility (3) 45.4% 46.8% 47.9% Expected life in months (4) 62 months 65 months 68 months (1) The risk-free interest rate is based upon the rate on a zero coupon U.S. Treasury bill, for periods within the contractual life of the option, in effect at the time of the grant. (2) The dividend yield is based on the average of historical stock prices and actual dividends paid. (3) Expected volatility is based on the historical volatility of the Company's stock price, over a period similar to the expected life of the option. (4) The expected term of the option is based on the historical employee exercise behavior, the vesting terms of the respective option, and a contractual life of either seven or ten years. Options under the plans as of December 31, 2016 and changes during the year ended December 31, 2016 were as follows: Shares (in thousands) Weighted-average Exercise Price Weighted- average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) Options activity – service based Outstanding at December 31, 2015 1,469.7 $ 32.85 Granted 1,465.9 34.59 Exercised (660.2 ) 11.56 Forfeited/cancelled/expired (68.4 ) 47.27 Outstanding at December 31, 2016 2,207.0 39.93 5.07 27,021 Exercisable at December 31, 2016 650.1 48.95 2.46 6,381 Options activity – performance based Outstanding at December 31, 2015 3,598.7 $ 61.10 Granted 739.1 34.24 Exercised (385.7 ) 30.47 Forfeited/cancelled/expired (226.2 ) 72.74 Outstanding at December 31, 2016 3,725.9 58.23 3.45 24,970 Exercisable at December 31, 2016 900.5 31.67 0.96 14,760 Options activity – all options Outstanding at December 31, 2015 5,068.4 $ 52.91 Granted 2,205.0 34.48 Exercised (1,045.9 ) 18.54 Forfeited/cancelled/expired (294.6 ) 66.82 Outstanding at December 31, 2016 5,932.9 51.42 4.05 51,991 Exercisable at December 31, 2016 1,550.6 38.91 1.59 21,141 The aggregate intrinsic value in the table above represents the total pretax intrinsic value (the difference between the Company's closing stock price on the last trading day of the respective years and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on December 31, 2016. This amount varies based on the fair market value of the Company's stock. The total fair value of options vested was $4.2 million of expense, $2.8 million of income and $1.0 million of income, net of tax, for the years ended December 31, 2014, 2015 and 2016, respectively. Cash proceeds, tax benefits and intrinsic value related to total stock options exercised during 2014, 2015 and 2016, were as follows (U.S. dollars in thousands): December 31, 2014 2015 2016 Cash proceeds from stock options exercised $ 11,042 $ 13,041 $ 15,707 Tax benefit realized for stock options exercised 11,947 4,451 3,840 Intrinsic value of stock options exercised 17,159 12,085 30,587 Nonvested restricted stock awards as of December 31, 2016 and changes during the year ended December 31, 2016 were as follows: Number of Shares (in thousands) Weighted-average Grant Date Fair Value Nonvested at December 31, 2015 662.2 $ 60.87 Granted 220.9 39.62 Vested (210.3 ) 58.20 Forfeited (76.4 ) 63.34 Nonvested at December 31, 2016 596.4 53.62 The Company recognizes stock-based compensation on a straight-line basis, except for performance based awards for which expense is recognized using a graded-attribution method if the results are materially different than the straight-line method. As of December 31, 2016, there was $16.8 million of unrecognized stock-based compensation expense related to nonvested restricted stock awards. That cost is expected to be recognized over a weighted-average period of 2.2 years. As of December 31, 2016, there was $18.8 million of unrecognized stock-based compensation expense related to nonvested stock option awards. That cost is expected to be recognized over a weighted-average period of 2.7 years.

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2016
Fair Value [Abstract]
Fair Value	13. 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 December 31, 2016 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 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 December 31, 2015 Level 1 Level 2 Level 3 Total Financial assets (liabilities): Cash equivalents and current investments $ 47,121 $ ─ $ ─ $ 47,121 Forward contracts ─ 485 ─ 485 Life insurance contracts ─ ─ 27,292 27,292 Total $ 47,121 $ 485 $ 27,292 $ 74,898 Fair Value at December 31, 2016 Level 1 Level 2 Level 3 Total Financial assets (liabilities): Cash equivalents and current investments $ 50,307 $ ─ $ ─ $ 50,307 Other long term assets 2,782 ─ ─ 2,782 Forward contracts ─ 1,371 ─ 1,371 Life insurance contracts ─ ─ 32,286 32,286 Total $ 53,089 $ 1,371 $ 32,286 $ 86,746 The following methods and assumptions were used to determine the fair value of each class of assets and liabilities recorded at fair value in the consolidated balance sheets: Cash equivalents and current investments: Forward contracts: Life insurance contracts: 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 2015 2016 Beginning balance at January 1 $ 26,280 $ 27,292 Actual return on plan assets: Relating to assets still held at the reporting date (1,597 ) 2,196 Purchases and issuances 3,025 3,051 Sales and settlements (416 ) (252 ) Transfers into Level 3 ─ ─ Ending balance at December 31 $ 27,292 $ 32,287

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Taxes [Abstract]
Income Taxes	14. Income Taxes Consolidated income before provision for income taxes consists of the following for the years ended December 31, 2014, 2015 and 2016 (U.S. dollars in thousands): 2014 2015 2016 U.S. $ 184,476 $ 134,473 $ (19,119 ) Foreign 114,031 77,486 231,958 Total $ 298,507 $ 211,959 $ 212,839 The provision for current and deferred taxes for the years ended December 31, 2014, 2015 and 2016 consists of the following (U.S. dollars in thousands): 2014 2015 2016 Current Federal $ 37,402 $ 6,328 $ ─ State 2,095 1,483 (718 ) Foreign 48,904 50,403 70,652 88,401 58,214 69,934 Deferred Federal (380 ) 16,556 (27,171 ) State 444 (674 ) 1,104 Foreign 20,866 4,817 25,886 20,930 20,699 (181 ) Provision for income taxes $ 109,331 $ 78,913 $ 69,753 The Company's foreign taxes paid are high relative to foreign operating income and the Company's U.S. taxes paid are low relative to U.S. operating income due largely to the flow of funds among the Company's Subsidiaries around the world. As payments for services, management fees, license arrangements and royalties are made from the Company's foreign affiliates to other company affiliates or its corporate headquarters, these payments often incur withholding and other forms of tax that are generally creditable for U.S. tax purposes. Therefore, these payments lead to increased foreign effective tax rates and lower U.S. effective tax rates. Variations occur in the Company's foreign and U.S. effective tax rates from year to year depending on several factors. These factors include the impact of global transfer prices, the timing and level of remittances from foreign affiliates, profits and losses in various markets, the valuation of deferred tax assets or liabilities, or changes in tax laws, regulations, accounting principles, or interpretations thereof. The principal components of deferred taxes are as follows (U.S. dollars in thousands): Year Ended December 31, 2015 2016 Deferred tax assets: Inventory differences $ 5,222 $ 2,521 Foreign tax credit and other foreign benefits 86,729 145,169 Stock-based compensation 13,842 11,470 Accrued expenses not deductible until paid 46,597 32,796 Foreign currency exchange 8,976 4,826 Net operating losses 10,994 9,584 Capitalized research and development 1,632 358 Exchange gains and losses 55,643 ─ Other 964 1,063 Gross deferred tax assets 230,599 207,787 Deferred tax liabilities: Foreign currency exchange ─ 105 Intangibles step-up 13,607 12,107 Overhead allocation to inventory 5,101 4,820 Amortization of intangibles 18,733 19,091 Foreign outside basis in controlled foreign corporation 84,434 106,846 Other 35,257 20,572 Gross deferred tax liabilities 157,132 163,541 Valuation allowance (49,271 ) (9,137 ) Deferred taxes, net $ 24,196 $ 35,109 At December 31, 2016, the Company had foreign operating loss carryforwards of $31.3 million for tax purposes, which will be available to offset future taxable income. If not used, $9.8 million of carryforwards will expire between 2017 and 2026, while $21.5 million do not expire. A valuation allowance has been placed on foreign operating loss carryforwards of $29.8 million. In addition, the company had foreign tax credit carryforwards of $55.7 million which will expire between 2025 and 2026. The Company uses the tax law ordering approach when determining when excess tax benefits have been realized. The valuation allowance primarily represents amounts for foreign operating loss carryforwards and unrealized foreign exchange losses for which it is more likely than not some portion or all of the deferred tax asset will not be realized. In making such determination, the Company considers all available positive and negative evidence, including future reversals of existing taxable temporary difference, projected future taxable income, tax planning strategies and recent financial operations. When the Company determines that there is sufficient taxable income to utilize the net operating losses, the valuation will be released which would reduce the provision for income taxes. The deferred tax asset valuation adjustments for the years ended December 31, 2014, 2015 and 2016 are as follows (U.S. dollars in thousands): Year Ended December 31, 2014 2015 2016 Balance at the beginning of period $ 10,803 $ 35,999 $ 49,271 Additions charged to cost and expenses 28,687 12,948 692 Decreases (3,546 ) (1) (2,943 ) (1) (40,442 ) (4) Adjustments 55 (2) 3,267 (2) (384 ) (2) Balance at the end of the period $ 35,999 (3) $ 49,271 (3) $ 9,137 (1) Decreases in valuation allowance due to lapse in statute of limitation of the net operating losses carryforward which had no impact to the income statement. (2) Represents the net currency effects of translating valuation allowances at current rates of exchange. (3) The increase was due primarily to the deferred tax assets created by the unrealized loss in Venezuela for which the Company set up a full valuation allowance. (4) Decrease in valuation allowance due to lapse in statute of limitation of the net operating losses carryforward and due to the write off of Venezuelan deferred tax assets, which had no impact to the income statement. The components of deferred taxes, net on a jurisdiction basis are as follows (U.S. dollars in thousands): Year Ended December 31, 2015 2016 Net current deferred tax assets $ ─ $ ─ Net noncurrent deferred tax assets 40,373 35,752 Total net deferred tax assets 40,373 35,752 Net current deferred tax liabilities ─ ─ Net noncurrent deferred tax liabilities 16,177 643 Total net deferred tax liabilities 16,177 643 Deferred taxes, net $ 24,196 $ 35,109 The Company is subject to regular audits by federal, state and foreign tax authorities. These audits may result in proposed assessments that may result in additional tax liabilities. The actual tax rate for the years ended December 31, 2014, 2015 and 2016 compared to the statutory U.S. Federal tax rate is as follows: Year Ended December 31, 2014 2015 2016 Income taxes at statutory rate 35.00 % 35.00 % 35.00 % Foreign tax rate differential ─ .92 (1.98 ) Non-deductible expenses 0.12 0.09 0.11 Controlled foreign corporation losses 1.48 1.09 (2.63 ) Section 987 implementation ─ ─ 2.69 Other 0.03 0.13 (0.42 ) 36.63 % 37.23 % 32.77 % The effective tax rate for 2015 was impacted largely due to the lower than anticipated profits in China caused by a charge to inventory. Consequently, a deferred tax asset associated with China could not be recognized, thereby impacting the annual effective tax rate. The year-over-year decrease in the effective tax rate for 2016 was due to a benefit for the deferred tax asset previously not recognized by China in 2015 being recognized in 2016, and other tax benefits being recognized due to ceasing business operations in Venezuela. These benefits were partially offset by a change in tax law that was enacted in December 2016 related to the taxation of foreign currency translation gains or losses arising from qualified business units. The cumulative amount of undistributed earnings of the Company's non-U.S. Subsidiaries held for indefinite reinvestment is approximately $50.0 million, $70.0 million and $70.0 million at December 31, 2014, 2015 and 2016, respectively. If this amount were repatriated to the United States, the amount of incremental taxes would be approximately $7.6 million.

Employee Benefit Plan

Employee Benefit Plan	12 Months Ended
	Dec. 31, 2016
Employee Benefit Plan [Abstract]
Employee Benefit Plan	15. Employee Benefit Plan The Company has a 401(k) defined contribution plan which permits participating employees to defer up to a maximum of 100% of their compensation, subject to limitations established by the Internal Revenue Service. Employees age 18 and older are eligible to contribute to the plan starting the first day of employment. After completing at least one day of service, employees are eligible to receive matching contributions from the Company. In 2014, 2015, and 2016 the Company matched employees' base pay up to 4% each year. The Company's matching contributions cliff vest after two years of service. The Company recorded compensation expense of $2.7 million, $2.8 million and $2.8 million for the years ended December 31, 2014, 2015 and 2016, respectively, related to its contributions to the plan. The Company may make additional discretionary contributions to the plan of up to 10% of employees' base pay. The Company's discretionary contributions vest 20% per year for an employee's first five years of service. For the years ended December 31, 2014, 2015 and 2016 the Company did not make any additional discretionary contributions. The Company has a defined benefit pension plan for its employees in Japan. All employees of Nu Skin Japan, after certain years of service, are entitled to pension plan benefits when they terminate employment with Nu Skin Japan. The accrued pension liability was $5.8 million, $4.8 million and $5.6 million as of December 31, 2014, 2015 and 2016, respectively. Although Nu Skin Japan has not specifically funded this obligation, as it is not required to do so, Nu Skin Japan believes it maintains adequate cash balances for this defined benefit pension plan. The Company recorded pension expense of $0.9 million, $0.7 million and $0.9 million for the years ended December 31, 2014, 2015 and 2016, respectively.

Executive Deferred Compensation

Executive Deferred Compensation Plan	12 Months Ended
	Dec. 31, 2016
Executive Deferred Compensation Plan [Abstract]
Executive Deferred Compensation Plan	16. Executive Deferred Compensation Plan The Company has an executive deferred compensation plan for select management personnel. Under this plan, the Company may make a contribution of up to 10% of a participant's salary. In addition, each participant has the option to defer a portion of their compensation up to a maximum of 80% of their base salary and 100% of their bonuses. Participant contributions are immediately vested. Company contributions vest 50% after ten years of service and 5% each year of service thereafter. In addition, any unvested company contributions will fully vest on the earlier of: (a) the participant attaining 60 years of age; and (b) death or disability. The Company recorded compensation expense of $0.3 million, $2.3 million and $1.5 million for the years ended December 31, 2014, 2015 and 2016, respectively, related to its contributions to the plan. The total long-term deferred compensation liability under the deferred compensation plan was $33.5 million and $36.7 million for the years ended December 31, 2015 and 2016, respectively, related to its contributions to the plan and is included in other long-term liabilities. All benefits under the deferred compensation plan are unsecured obligations of the Company. The Company has contributed assets to a "rabbi trust" for the payment of benefits under the deferred compensation plan. As the assets of the trust are available to satisfy the claims of general creditors if the Company becomes insolvent, the amounts held in the trust are accounted for as an investment on the Company's consolidated balance sheet of $27.3 million and $32.3 million for the years ended December 31, 2015 and 2016, respectively.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2016
Derivative Financial Instruments [Abstract]
Derivative Financial Instruments	17. 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 that management considered when determining the fair value. As of December 31, 2016, the Company held non-designated derivative contracts with notional amounts of 11.5 billion South Korean won ($9.5 million) and 500.0 million Japanese yen, 5.8 billion South Korean won and 9.0 million Canadian dollars ($4.2 million, $4.9 million and $6.5 million, respectively) as of December 31, 2015. The fair values of these non-designated derivative contracts were zero and $0.5 million as of December 31, 2015 and 2016, respectively. The contracts held at December 31, 2016 have maturities through March 2017, and accordingly, all gains and losses on non-designated derivative contracts will be recognized in current earnings over the next 3 months. The following table summarizes gains (losses) related to derivative instruments not designated as hedging instruments during the years ended December 31, 2015 and 2016 (U.S. dollars in thousands): Amount of Gain (Loss) Recognized in Income Year Ended December 31, Derivatives not designated as hedging instruments: Location of Gain (Loss) Recognized in Income 2014 2015 2016 Foreign currency contracts Other income (expense) $ — $ 38 $ 39 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 December 31, 2016, the Company held forward contracts designated as foreign currency cash flow hedges with notional amounts totaling 1.4 billion Japanese yen ($12.0 million), and 1.9 billion Japanese yen and 15.0 million euros ($15.8 million and $16.3 million, respectively) as of December 31, 2015 to hedge forecasted foreign-currency-denominated intercompany transactions. The fair value of these hedges were $0.5 million and $0.9 million as of December 31, 2015 and 2016, respectively. The contracts held at December 31, 2016 have maturities through June 2017, and accordingly, all unrealized gains and losses on foreign currency cash flow hedges included in accumulated other comprehensive loss will be recognized in current earnings over the next 6 months. The following table summarizes gains (losses) related to derivative instruments recorded in other comprehensive income (loss) during the years ended December 31, 2015 and 2016 (U.S. dollars in thousands): Amount of Gain (Loss) Recognized in Other Comprehensive Loss Year Ended December 31, Derivatives designated as hedging instruments: 2014 2015 2016 Foreign currency forward contracts related to intercompany $ 1,578 $ 590 $ (1,423 ) The following table summarizes gains (losses) relating to derivative instruments reclassified from accumulated other comprehensive loss into income during the years ended December 31, 2015 and 2016 (U.S. dollars in thousands): Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income Year Ended December 31, Derivatives designated as hedging instruments: Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income 2014 2015 2016 Foreign currency forward contracts related to intercompany license fees and product sales hedges Revenue $ 2,725 $ 1,731 $ (1,088 ) Foreign currency forward contracts related to intercompany selling expense hedges Selling expenses $ — $ 397 $ (1,544 ) As of December 31, 2015 and 2016, there were $0.3 million and $0.6 million, respectively, of unrealized gains/(losses) included in accumulated other comprehensive loss related to foreign currency cash flow hedges. The remaining $71.6 million and $84.7 million as of December 31, 2015 and 2016, respectively, in accumulated other comprehensive loss are related to cumulative translation adjustments. The Company assesses hedge effectiveness at least quarterly. During the years ended December 31, 2015 and 2016, 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 13, "Fair Value".

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
	Dec. 31, 2016
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information	18. Supplemental Cash Flow Information Cash paid for interest totaled $5.3 million, $7.0 million and $11.6 million for the years ended December 31, 2014, 2015 and 2016, respectively. Cash paid for income taxes totaled $171.4 million, $49.8 million and $40.9 million for the years ended December 31, 2014, 2015 and 2016, respectively. For the year ended December 31, 2014, the Company had non-cash charges associated with the accounting of its Nu Skin Korea building lease increasing both fixed assets by $19.4 million and long-term liabilities by $16.7 million, and decreasing long-term assets by $2.7 million.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2016
Segment Information [Abstract]
Segment Information	19. Segment Information The Company operates in a single operating segment by selling products through a global network of independent distributors that operates in a seamless manner from market to market, except for its operations in Mainland China. In Mainland China, the Company utilizes sales employees, independent direct sellers and independent marketers to distribute its products. Independent direct sellers can sell away from the Company's stores where the Company has obtained a direct selling license to do so. Independent marketers are licensed business owners who are authorized to sell the Company's products either at their own approved premises or through the Company's stores. Selling expenses are the Company's largest expense comprised of sales compensation and incentives paid to its sales force. The Company manages its business primarily by managing its sales force. The Company does not use profitability reports on a regional or divisional basis for making business decisions. However, the Company does report revenue in five geographic regions: Greater China, North Asia, South Asia/Pacific, Americas and EMEA. Revenue generated in each of these regions is set forth below (U.S. dollars in thousands): Year Ended December 31, 2014 2015 2016 Greater China $ 948,523 $ 771,667 $ 794,393 North Asia 782,985 686,555 692,738 South Asia/Pacific 328,388 321,971 296,758 Americas 329,027 329,668 276,590 EMEA 180,572 137,186 147,318 Total $ 2,569,495 $ 2,247,047 $ 2,207,797 Revenue generated by each of the Company's product lines is set forth below (U.S. dollars in thousands): Year Ended December 31, 2014 2015 2016 Nu Skin $ 1,562,595 $ 1,363,539 $ 1,308,135 Pharmanex 1,000,279 877,924 892,738 Other 6,621 5,584 6,924 Total $ 2,569,495 $ 2,247,047 $ 2,207,797 Additional information as to the Company's operations in the most significant geographical areas is set forth below (U.S. dollars in thousands): Year Ended December 31, Revenue: 2014 2015 2016 Mainland China $ 675,082 $ 565,527 $ 610,414 South Korea 467,720 422,341 413,696 Japan 315,265 264,214 279,042 United States 230,767 243,748 201,239 December 31, Long-lived assets: 2015 2016 Mainland China $ 110,839 $ 97,867 South Korea 48,702 41,545 Japan 13,587 11,517 United States 271,057 283,868

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies [Abstract]
Commitments and Contingencies	20. 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. Although management believes that the Company is in compliance in all material respects with the statutes, laws, rules and regulations of every jurisdiction in which it operates, 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 or 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, will not likely 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.

Dividends per Share

Dividends per Share	12 Months Ended
	Dec. 31, 2016
Dividends per Share [Abstract]
Dividends per Share	21. Dividends per Share Quarterly cash dividends for the years ended December 31, 2015 and 2016 totaled $81.2 million and $78.4 million or $0.35 per share in all quarters of 2015 and $0.355 for all quarters of 2016. The board of directors has declared a quarterly cash dividend of $0.36 per share for all classes of common stock to be paid on March 15, 2017 to stockholders of record on February 27, 2017.

Other Income (Expense), Net

Other Income (Expense), Net	12 Months Ended
	Dec. 31, 2016
Other Income (Expense), Net [Abstract]
Other Income (Expense), Net	22. Other Income (Expense), Net Other income (expense), net

Cost of Sales

Cost of Sales	12 Months Ended
	Dec. 31, 2016
Cost of Sales [Abstract]
Cost of Sales	23. Cost of Sales In February 2016, the Tokyo District Court issued its ruling on a dispute between the Company and the customs authorities in Japan. The District Court upheld previous customs assessments related to the importation of several of the Company's products into Japan. As a result of the District Court's decision, the Company recorded a charge of $31.4 million to cost of sales in the first quarter of 2016. This is a non-cash item because the Company was previously required to pay the assessments. This charge represents the full amount that was disputed, including assessments for the period of October 2006 through September 2009 in connection with post-importation audits, as well as the disputed portion of the Company's import duties from October 2009 to the date of the District Court's decision. The Company has appealed this decision to the Tokyo High Court.

Acquisition

Acquisition	12 Months Ended
	Dec. 31, 2016
Acquisition [Abstract]
Acquisition	24. Acquisition In the first quarter of 2016, the Company purchased 70% of Vertical Eden, LLC, an early-stage company in the warehouse growing market, based in Alpine, Utah, for $3.3 million in cash and contingent consideration valued at $1.5 million. The purchase of Vertical Eden includes specialized technology in remote programming and management of the entire crop growing cycle. As a result of this acquisition, the Company recorded approximately $4.4 million of intangible assets which are being amortized over the useful lives of 3 to 7 years. The Company has also recorded $2.5 million of goodwill. Due to the insignificance of the transaction to the Company's consolidated financial statements, the Company has not separately presented the $2.1 million non-controlling interest related to this acquisition, but has included it in other liabilities and has included the net income (loss) attributable to the non-controlling interest in other income (expense).

Summary of Significant Accoun34

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Summary of Significant Accounting Policies [Abstract]
Consolidation	Consolidation The consolidated financial statements include the accounts of the Company and the Subsidiaries. All significant intercompany accounts and transactions are eliminated in consolidation.
Use of estimates	Use of estimates The preparation of these financial statements, in conformity with accounting principles generally accepted in the United States of America, required management to make estimates and assumptions that affected the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results may differ from these estimates.
Cash and cash equivalents	Cash and cash equivalents Cash equivalents are short-term, highly liquid instruments with original maturities of 90 days or less.
Inventories	Inventories Inventories consist primarily of merchandise purchased for resale and are stated at the lower of standard cost or market, using a standard cost method which approximates the first-in, first-out method. The Company had adjustments to its inventory carrying value totaling $20.7 million and $8.0 million as of December 31, 2015 and 2016, respectively. The Company incurred a $37.9 million write-down of estimated surplus inventory primarily in the Greater China region in the third quarter of 2015 due to reduced expectations for future product sales. Inventories consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Raw materials $ 114,193 $ 108,276 Finished goods 151,063 141,660 $ 265,256 $ 249,936 Adjustments to inventories consist of the following (U.S. dollars in thousands): 2014 2015 2016 Beginning balance, adjustments to inventory carrying value $ 5,934 $ 56,034 $ 20,744 Additions 77,379 38,605 24,906 Write-offs (27,279 ) (73,895 ) (37,655 ) Ending balance, adjustments to inventory carrying value $ 56,034 $ 20,744 $ 7,995
Property and equipment	Property and equipment Property and equipment are stated at cost less accumulated depreciation. Depreciation is recorded using the straight-line method over the following estimated useful lives: Buildings 39 years Furniture and fixtures 5 - 7 years Computers and equipment 3 - 5 years Leasehold improvements Shorter of estimated useful life or lease term Scanners 3 years Vehicles 3 - 5 years Expenditures for maintenance and repairs are charged to expense as incurred. When an asset is sold or otherwise disposed of, the cost and associated accumulated depreciation are removed from the accounts and the resulting gain or loss is recognized in the statement of income. Property and equipment are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. An impairment loss is recognized if the carrying amount of the asset exceeds its fair value.
Goodwill and other intangible assets	Goodwill and other intangible assets Goodwill is recorded when the cost of acquired businesses exceeds the fair value of the identifiable net assets acquired. Goodwill and intangible assets with indefinite useful lives are not amortized, but are assessed for impairment annually on June 30. In addition, impairment testing is conducted when events occur or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. Goodwill and intangible assets with indefinite useful lives would be written down to fair value if considered impaired. Guidance under Accounting Standards Codification ("ASC") 350, Intangibles - Goodwill and Other
Revenue recognition	Revenue recognition Revenue is recognized when products are shipped, which is when title and risk of loss pass to the purchaser of the products. A reserve for product returns is accrued based on historical experience totaling $7.8 million and $6.1 million as of December 31, 2015 and 2016, respectively. During the years ended December 31, 2014, 2015 and 2016, the Company recorded sales returns of $83.6 million, $65.6 million and $61.2 million, respectively. The Company generally requires cash or credit card payment at the point of sale. Accounts receivable generally represents amounts due from credit card companies and are generally collected within a few days of the purchase. As such, the Company has determined that no allowance for doubtful accounts is necessary. Amounts received prior to shipment of products and title passage to the purchaser of the products are recorded as deferred revenue. The Company's sales compensation plans generally do not provide rebates or selling discounts for purchasing its products and services. The Company classifies selling discounts and rebates, if any, as a reduction of revenue at the time the sale is recorded. Through the Company's product subscription and loyalty programs, which can vary from market to market, participants who commit to purchases on a monthly basis receive a discount from suggested retail or wholesale prices, as applicable. The Company applies this discount at the time of each purchase and not through a larger discount on the initial purchase. Participants may cancel their commitment at any time, however some markets charge a one-time early cancellation fee. All purchases under these programs are subject to the Company's standard product payment and return policies. In accordance with ASC 605-50, the Company classifies selling discounts and rebates, as a reduction of revenue at the time the sale is recorded.
Shipping and handling costs	Shipping and handling costs Shipping and handling costs are recorded as cost of sales and are expensed as incurred.
Advertising expenses	Advertising expenses Advertising costs are expensed as incurred. Advertising expense incurred for the years ended December 31, 2014, 2015 and 2016 totaled $19.6 million, $11.0 million and $15.9 million, respectively.
Selling expenses	Selling expenses Selling expenses are the Company's most significant expense and are classified as operating expenses. Selling expenses include distributor commissions as well as wages, benefits, bonuses and other labor and unemployment expenses the Company pays to its sales force in Mainland China. In each of the Company's markets, except Mainland China, Sales Leaders can earn "multi-level" compensation under the Company's global sales compensation plan, including commissions for product sales to their consumer groups as well as the product sales made through the sales network they have developed and trained. The Company does not pay commissions on sales materials. Outside of Mainland China, the Company's distributors may make profits by purchasing the products from the Company at a discount and selling them to consumers with a mark-up. The Company does not account for nor pay additional commissions on these mark-ups received by distributors. In many markets, the Company also allows individuals who are not members of its sales force, referred to as "preferred customers," to buy products directly from the Company at a discount. The Company pays commissions on preferred customer purchases to the referring member of its sales force.
Research and development	Research and development Research and development costs are expensed as incurred and are included in general and administrative expenses in the accompanying consolidated statements of income and totaled $18.9 million, $20.1 million and $24.3 million in 2014, 2015 and 2016, respectively.
Deferred tax assets and liabilities	Deferred tax assets and liabilities 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.
Uncertain tax positions	Uncertain tax positions 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 2017 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 2010. However, statutes in certain countries may be as long as ten years for transfer pricing related issues. 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. A reconciliation of the beginning and ending amount of unrecognized tax benefits included in other liabilities is as follows (U.S. dollars in thousands): 2014 2015 2016 Gross balance at January 1 $ 7,484 $ 5,987 $ 7,772 Increases related to prior year tax positions ─ 1,677 185 Increases related to current year tax positions 2,700 1,119 918 Settlements ─ ─ (3,369 ) Decreases due to lapse of statutes of limitations (4,106 ) (667 ) (252 ) Currency adjustments (91 ) (344 ) 36 Gross balance at December 31 $ 5,987 $ 7,772 $ 5,290 At December 31, 2016, the Company had $5.3 million in unrecognized tax benefits of which $1.0 million, if recognized, would affect the effective tax rate. In comparison, at December 31, 2015, the Company had $7.8 million in unrecognized tax benefits of which $0.9 million, if recognized, would affect the effective tax rate. The Company's unrecognized tax benefits relate to multiple foreign and domestic jurisdictions. There are potential changes in unrecognized tax benefits from the multiple jurisdictions in which the Company operates, as well as the expiration of various statutes of limitation and possible completion of tax examinations; however, the Company does not anticipate that total unrecognized tax benefits will significantly change over the next 12 months. During the years ended December 31, 2014, 2015 and 2016, the Company recognized $0.4 million, $0.4 million and $(0.8) million, respectively in interest and penalties expenses/(benefits). The Company had $1.3 million, $1.7 million and $0.9 million of accrued interest and penalties related to uncertain tax positions at December 31, 2014, 2015 and 2016, respectively. Interest and penalties related to uncertain tax positions are recognized as a component of income tax expense.
Net income per share	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 (Note 11).
Foreign currency translation	Foreign currency translation A significant portion of the Company's business operations occur outside of the United States. The local currency of each of the Company's Subsidiaries is considered its functional currency, except for the Company's subsidiaries in Singapore and Venezuela where the U.S. dollar is used. All assets and liabilities are translated into U.S. dollars at exchange rates existing at the balance sheet dates, revenue and expenses are translated at weighted-average exchange rates and stockholders' equity is recorded at historical exchange rates. The resulting foreign currency translation adjustments are recorded as a separate component of stockholders' equity in the consolidated balance sheets and transaction gains and losses are included in other income and expense in the consolidated financial statements. Net of tax, the accumulated other comprehensive loss related to the foreign currency translation adjustments are $52.6 million (net of tax of $10.8 million), $71.6 million (net of tax of $10.9 million) and $84.7 million (net of tax of $13.4 million), at December 31, 2014, 2015 and 2016, respectively.
Classification of Venezuela as a Highly Inflationary Economy and Devaluation of Its Currency	Classification of Venezuela as a Highly Inflationary Economy and Devaluation of Its Currency The Company commenced operations in Venezuela in 2007, where it markets a variety of personal care and nutritional products. Total assets in Venezuela as of December 31, 2015 and 2016 are $7.9 million and zero, of which $4.3 million and zero are monetary assets in each year, respectively. The Venezuela subsidiary also had a $33.7 million and zero intercompany balance to its parent company as of December 31, 2015 and 2016, respectively, with respect to charges for inventory, commissions, license fees and service fees. The Company imports all of its products into Venezuela from the United States. Venezuela represents a very small portion of the Company's overall business with sales during 2014, 2015 and 2016 representing approximately 1.0%, 0.2% and 0.1% of the Company's overall revenue, respectively. Since 2010, Venezuela has been considered a highly inflationary economy. A country is considered to have a highly inflationary economy if it has a cumulative inflation rate of approximately 100% or more over a three-year period as well as other qualitative factors including historic inflation rate trends (increasing and decreasing), the capital intensiveness of the operation and other pertinent economic factors. The functional currency in highly inflationary economies is required to be the functional currency of the entity's parent company (which for the Company's Venezuela subsidiary is the U.S. dollar), and transactions denominated in the local currency are remeasured to the functional currency. The remeasurement of bolivars into U.S. dollars creates foreign currency transaction gains or losses, which the Company includes in its consolidated statement of income. The Venezuela subsidiary did not transition to highly inflationary status until the first quarter of 2014. As a result, the Company continued to account for the Venezuela subsidiary as a bolivar functional currency entity, rather than a U.S. dollar functional currency entity. In the first quarter of 2014, the Company began to account for this subsidiary as highly inflationary, and therefore changed the functional currency of the entity to the U.S. dollar. The consolidated statement of income for the year ended December 31, 2014, includes an out-of-period adjustment of $6.3 million to correct this error as it was not deemed to be material to the current or prior period financial statements. During the first quarter of 2014, two new foreign exchange mechanisms ("SICAD I" and "SICAD II") became available in Venezuela. As of March 31, 2014, the Company determined it would be most appropriate for it to utilize the SICAD I rate, which was approximately 10.7 bolivars per U.S. dollar. As a result of the adoption of this rate during the period ended March 31, 2014, the Company recorded a $14.7 million charge in Other Income (Expense) to reflect foreign currency transaction losses on its net monetary assets denominated in bolivar, which is reflected in the year ended December 31, 2014. As of June 30, 2014, the Company determined that it would be most appropriate for it to utilize the SICAD II rate, which was approximately 50 bolivars per U.S. dollar, as the Company had not been successful in getting approval under SICAD I and believed the SICAD II rate better reflected the rate at which the Company would be able to convert bolivars to U.S. dollars. As a result of the adoption of this rate during the three months ended June 30, 2014, the Company recorded an additional $25.3 million charge in Other Income (Expense) to reflect additional foreign currency translation losses on its net monetary assets denominated in bolivar, which is reflected in the year ended December 31, 2014. In the first quarter of 2015, a new foreign exchange mechanism ("SIMADI") was announced, which utilizes a variable exchange rate that was approximately 193 bolivars per U.S. dollar as of March 31, 2015. As a result of this new exchange mechanism, in 2015, the Company recorded charges totaling $10.2 million in other income (expense) to reflect additional foreign currency translation losses on its net monetary assets denominated in bolivars. The current operating environment in Venezuela continues to be challenging, with high inflation in the country, government restrictions on foreign exchange and pricing controls, and the possibility of the government announcing further devaluations to its currency. Currency restrictions enacted by the Venezuelan government have impacted the ability of the Company to exchange foreign currency at the official rate to pay for imported products, license fees, commissions and other service fees. T
Fair value of financial instruments	Fair value of financial instruments 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 December 31, 2016 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. As of December 31, 2015 and 2016, the long-term debt fair value is $252.4 million and $497.4 million, respectively. The estimated fair value of the Company's debt is based on interest rates available for debt with similar terms and remaining maturities. The fair value of the Convertible Note is highly dependent upon the Company's stock price at the valuation date. 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 many financial instruments and certain other items at fair value. The Company has elected not to apply the fair value option to existing eligible items.
Stock-based compensation	Stock-based compensation All share-based payments, including grants of stock options and restricted stock units, are required to be recognized in the Company's financial statements based upon their respective grant date fair values. The Black-Scholes option-pricing model is used to estimate the fair value of stock options. The determination of the fair value of stock options is affected by the Company's stock price and a number of assumptions, including expected volatility, expected life, risk-free interest rate and expected dividends. The Company uses historical volatility as the expected volatility assumption required in the Black-Scholes model. The expected life of the stock options is based on historical data trended into the future. The risk-free interest rate assumption is based on observed interest rates appropriate for the expected terms of the Company's stock options. The fair value of the Company's restricted stock units is based on the closing market price of its stock on the date of grant less the Company's expected dividend yield. The total compensation expense related to equity compensation plans was $17.5 million, $7.4 million and $8.9 million for the years ended December 31, 2014, 2015 and 2016, respectively. In 2014, 2015 and 2016, these amounts reflect the reversal of $4.7 million, $7.6 million and $9.6 million, respectively, for certain performance based awards that were no longer expected to vest. For the years ended December 31, 2014, 2015 and 2016, all stock-based compensation expense was recorded within general and administrative expenses.
Reporting comprehensive income	Reporting comprehensive income Comprehensive income is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources, and it includes all changes in equity during a period except those resulting from investments by owners and distributions to owners.
Accounting for derivative instruments and hedging activities	Accounting for derivative instruments and hedging activities The Company recognizes all derivatives as either assets or liabilities, with the instruments measured at fair value. Portions of the Company's Japanese yen borrowings prior to its October 2014 refinancing were designated, and were effective as, economic hedges of the net investment in its foreign operations. Accordingly, foreign currency transaction gains or losses due to spot rate fluctuations on these debt instruments were included in foreign currency translation adjustments within other comprehensive income. Included in the cumulative translation adjustment are $1.4 million, zero and zero pretax net gains for the years ended December 31, 2014, 2015 and 2016, respectively, from Japanese yen borrowings. Additionally, the Company's Subsidiaries enter into significant transactions with each other and third parties that may not be denominated in the respective Subsidiaries' functional currencies. The Company regularly monitors its foreign currency risks and seeks to reduce its exposure to fluctuations in foreign exchange rates using foreign currency exchange contracts and through certain intercompany loans of foreign currency. Hedge effectiveness is assessed at inception and throughout the life of the hedge to ensure the hedge qualifies for hedge accounting treatment. Changes in fair value associated with hedge ineffectiveness, if any, are recorded in the results of operations currently. In the event that an anticipated transaction is no longer likely to occur, the Company recognizes the change in fair value of the derivative in its results of operations currently. Changes in the fair value of derivatives are recorded in current earnings or accumulated other comprehensive loss, depending on the intended use of the derivative and its resulting designation. The gains and losses in accumulated other comprehensive loss stemming from these derivatives will be reclassified into earnings in the period during which the hedged forecasted transaction affects earnings. The fair value of the receivable and payable amounts related to these unrealized gains and losses is classified as other current assets and liabilities. The Company does not use such derivative financial instruments for trading or speculative purposes. Gains and losses on certain intercompany loans of foreign currency are recorded as other income and expense in the consolidated statements of income. Recent accounting pronouncements In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements — Going Concern (Subtopic 205-40). The purpose of this ASU is to incorporate into U.S. GAAP management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern within one year after the date that the financial statements are issued, and to provide related footnote disclosures. This ASU was effective for the fiscal year ended December 31, 2016 and did not have a significant impact on the Company’s consolidated financial statements or the accompanying disclosures. In April 2015, the FASB issued ASU 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs Interest - Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs associated with Line-of-Credit Arrangements In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory In February 2016, the FASB issued ASU 2016-02, Leases (Subtopic 842) In March 2016, the FASB issued ASU 2016-09, Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting 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 Statement of Cash Flows (Topic 230): Restricted Cash.
Recent accounting pronouncements	In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a 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 goodwill 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.

Summary of Significant Accoun35

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2016
Summary of Significant Accounting Policies [Abstract]
Inventories	Inventories consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Raw materials $ 114,193 $ 108,276 Finished goods 151,063 141,660 $ 265,256 $ 249,936
Adjustments to Inventories	Adjustments to inventories consist of the following (U.S. dollars in thousands): 2014 2015 2016 Beginning balance, adjustments to inventory carrying value $ 5,934 $ 56,034 $ 20,744 Additions 77,379 38,605 24,906 Write-offs (27,279 ) (73,895 ) (37,655 ) Ending balance, adjustments to inventory carrying value $ 56,034 $ 20,744 $ 7,995
Estimated Useful Lives	Property and equipment are stated at cost less accumulated depreciation. Depreciation is recorded using the straight-line method over the following estimated useful lives: Buildings 39 years Furniture and fixtures 5 - 7 years Computers and equipment 3 - 5 years Leasehold improvements Shorter of estimated useful life or lease term Scanners 3 years Vehicles 3 - 5 years
Reconciliation of Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of unrecognized tax benefits included in other liabilities is as follows (U.S. dollars in thousands): 2014 2015 2016 Gross balance at January 1 $ 7,484 $ 5,987 $ 7,772 Increases related to prior year tax positions ─ 1,677 185 Increases related to current year tax positions 2,700 1,119 918 Settlements ─ ─ (3,369 ) Decreases due to lapse of statutes of limitations (4,106 ) (667 ) (252 ) Currency adjustments (91 ) (344 ) 36 Gross balance at December 31 $ 5,987 $ 7,772 $ 5,290

Prepaid Expenses and Other (Tab

Prepaid Expenses and Other (Tables)	12 Months Ended
	Dec. 31, 2016
Prepaid Expenses and Other [Abstract]
Prepaid Expenses and Other	Prepaid expenses and other consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Deferred charges $ 14,940 $ 9,319 Prepaid income taxes 40,407 6,799 Prepaid inventory and import costs 10,573 10,857 Prepaid rent, insurance and other occupancy costs 11,590 13,398 Prepaid promotion and event cost 4,486 4,126 Prepaid other taxes 4,146 4,778 Forward contracts 485 1,371 Deposits 1,513 1,079 Other 13,807 13,349 $ 101,947 $ 65,076

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2016
Property and Equipment [Abstract]
Property and Equipment	Property and equipment are comprised of the following (U.S. dollars in thousands): December 31, 2015 2016 Land $ 33,610 $ 33,158 Buildings 272,208 266,436 Construction in progress (1) 7,827 31,124 Furniture and fixtures 81,274 82,194 Computers and equipment 141,079 143,014 Leasehold improvements 116,120 109,863 Scanners 11,805 10,578 Vehicles 2,207 2,090 666,130 678,457 Less: accumulated depreciation (211,593 ) (233,725 ) $ 454,537 $ 444,732 (1) Construction in progress includes $0.7 million and $25.8 million as of December 31, 2015 and 2016, respectively, of eligible capitalized internal-use software development costs which will be reclassified to computers and equipment when placed into service.

Goodwill and Other Intangible38

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Goodwill and Other Intangible Assets [Abstract]
Goodwill and Indefinite Life Intangible Assets	Goodwill and other intangible assets consist of the following (U.S. dollars in thousands): Carrying Amount at December 31, Goodwill and indefinite life intangible assets: 2015 2016 Goodwill $ 112,446 $ 114,954 Trademarks and trade names 24,599 24,599 Other indefinite lived intangibles — 3,763 $ 137,045 $ 143,316
Finite Life Intangible Assets	December 31, 2015 December 31, 2016 Finite life intangible assets: Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Weighted-average Amortization Period Scanner technology $ 46,482 $ 33,590 $ 46,482 $ 36,624 18 years Developed technology 22,500 17,558 22,500 18,383 20 years Distributor network 11,598 11,096 11,598 11,598 15 years Trademarks 2,409 879 2,592 1,011 15 years Other 45,315 22,771 46,219 26,584 8 years $ 128,304 $ 85,894 $ 129,391 $ 94,200 15 years
Annual Estimated Future Amortization Expense	The estimated annual amortization expense for each of the five succeeding fiscal years are as follows (U.S. dollars in thousands): Year Ending December 31, 2017 $ 8,460 2018 8,650 2019 8,480 2020 4,160 2021 2,730

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Other Assets [Abstract]
Other Assets	Other assets consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Deferred taxes $ 40,373 $ 35,752 Deposits for noncancelable operating leases 39,016 38,858 Deposit for customs assessment 35,424 — Cash surrender value for life insurance policies 27,292 32,286 Other 23,354 29,573 $ 165,459 $ 136,469

Accrued Expenses (Tables)

Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2016
Accrued Expenses [Abstract]
Accrued Expenses	Accrued expenses consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Accrued sales force commissions and other payments $ 166,273 $ 126,153 Accrued other taxes 35,922 31,748 Accrued payroll and other employee expenses 24,390 25,412 Accrued payable to vendors 40,914 28,456 Accrued royalties 9,701 4,767 Sales return reserve 7,752 6,125 Deferred revenue 6,644 13,494 Other 19,320 38,868 $ 310,916 $ 275,023

Other Liabilities (Tables)

Other Liabilities (Tables)	12 Months Ended
	Dec. 31, 2016
Other Liabilities [Abstract]
Other Liabilities	Other liabilities consist of the following (U.S. dollars in thousands): December 31, 2015 2016 Deferred tax liabilities $ 16,177 $ 643 Reserve for other tax liabilities 9,463 6,264 Reserve for customs assessment 3,600 — Liability for deferred compensation plan 33,456 36,730 Pension plan benefits reserve 4,859 5,631 Build to suit – financing obligation 10,238 9,543 Deferred rent and deferred tenant incentives 6,336 5,952 Asset retirement obligation 4,682 5,682 Other 2,069 6,354 $ 90,880 $ 76,799

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2016
Long-Term Debt [Abstract]
Convertible Note	The net carrying amount of the Liability Component is as follows (U.S. dollars in thousands): December 31, 2016 Principal $ 210,000 Unamortized debt discount (conversion option) (9,622 ) Total long-term debt, net 200,378 Unamortized debt discount (issuance costs) (5,506 ) Net carrying amount $ 194,872
Debt Facilities	The following table summarizes the Company's debt facilities as of December 31, 2015 and 2016: Facility or Arrangement Original Principal Amount Balance as of December 31, 2015 Balance as of December 31, 2016 (1)(2) Interest Rate Repayment terms Credit Agreement term loan facility: U.S. dollar denominated: $127.5 million $118.7 million $108.4 million Variable 30 day: 3.52% One half of the principal amount payable in increasing quarterly installments over a five-year period beginning on December 31, 2014, with the remainder payable at the end of the five-year term. Japanese yen denominated: 6.6 billion yen 6.1 billion yen ($51.1 million as of December 31, 2015) 5.6 billion yen ($47.9 million as of December 31, 2016) Variable 30 day: 2.75% One half of the principal amount payable in increasing quarterly installments over a five-year period beginning on December 31, 2014, with the remainder payable at the end of the five-year term. Credit Agreement revolving credit facility: $47.5 million $47.5 million Variable 30 day: 3.52% Revolving line of credit expires October 2019. Korean subsidiary loan: $20.0 million $20.0 million $10.0 million 1.12% Remaining balance payable on March 16, 2018. Japan subsidiary loan: 2.0 billion yen 2.0 billion yen ($16.6 million as of December 31, 2015) 1.3 billion yen ($11.4 million as of December 31, 2016) 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 payable on June 15, 2020. (1) As of December 31, 2016, the current portion of the Company's debt (i.e. becoming due in the next 12 months) included $13.5 million of the balance of its U.S. dollar denominated debt under the Credit Agreement facility, $6.0 million of the balance of its Japanese yen-denominated debt under the Credit Agreement facility, $10.0 million of the Korea subsidiary loan and $5.7 million of the Japan subsidiary loan. The Company has classified the $47.5 million borrowed under the revolving line of credit and the $10.0 million of the Korea subsidiary loan 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 as well as pay off the Korea subsidiary loan in 2017. (2) The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $12.8 million and debt issuance costs of $5.5 million (consisting of $15.1 million related to the Convertible Note and $3.2 million related to the credit agreement), which is not reflected in this table.
Maturities of Long-Term Debt	Maturities of all long-term debt at December 31, 2016, based on the year-end exchange rate, are as follows (U.S. dollars in thousands): Year Ending December 31, 2017 $ 82,727 2018 29,840 2019 112,611 2020 210,000 2021 ─ Thereafter ─ Total (1) $ 435,178 (1) The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $18.3 million, which is not reflected in this table.

Lease and Financing Obligatio43

Lease and Financing Obligations (Tables)	12 Months Ended
	Dec. 31, 2016
Lease and Financing Obligations [Abstract]
Minimum Future Operating Leases and Financing Obligations	Minimum future operating leases and financing obligations at December 31, 2016 are as follows (U.S. dollars in thousands): Year Ending December 31, Operating Leases Financing Obligations 2017 $ 36,180 $ 631 2018 30,001 650 2019 21,310 670 2020 11,602 690 2021 5,997 698 Thereafter 15,127 2,502 Total minimum lease payments $ 120,217 $ 5,841

Capital Stock (Tables)

Capital Stock (Tables)	12 Months Ended
	Dec. 31, 2016
Capital Stock [Abstract]
Weighted Average Common Shares Outstanding	The following is a reconciliation of the weighted-average common shares outstanding for purposes of computing basic and diluted net income per share (in thousands): Year Ended December 31, 2014 2015 2016 Basic weighted-average common shares outstanding 59,073 57,997 55,412 Effect of dilutive securities: Stock awards and options 1,814 1,060 683 Convertible note — — 2 Diluted weighted-average common shares outstanding 60,887 59,057 56,097

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2016
Stock-Based Compensation [Abstract]
Stock Option Valuation Assumptions	The fair value of stock option awards was estimated using the Black-Scholes option-pricing model with the following assumptions and weighted-average fair values as follows: December 31, Stock Options 2014 2015 2016 Weighted average grant date fair value of grants $ 23.01 $ 16.26 $ 12.59 Risk-free interest rate (1) 1.7% 1.7% 1.4% Dividend yield (2) 1.9% 2.1% 2.3% Expected volatility (3) 45.4% 46.8% 47.9% Expected life in months (4) 62 months 65 months 68 months (1) The risk-free interest rate is based upon the rate on a zero coupon U.S. Treasury bill, for periods within the contractual life of the option, in effect at the time of the grant. (2) The dividend yield is based on the average of historical stock prices and actual dividends paid. (3) Expected volatility is based on the historical volatility of the Company's stock price, over a period similar to the expected life of the option. (4) The expected term of the option is based on the historical employee exercise behavior, the vesting terms of the respective option, and a contractual life of either seven or ten years.
Stock Options	Options under the plans as of December 31, 2016 and changes during the year ended December 31, 2016 were as follows: Shares (in thousands) Weighted-average Exercise Price Weighted- average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) Options activity – service based Outstanding at December 31, 2015 1,469.7 $ 32.85 Granted 1,465.9 34.59 Exercised (660.2 ) 11.56 Forfeited/cancelled/expired (68.4 ) 47.27 Outstanding at December 31, 2016 2,207.0 39.93 5.07 27,021 Exercisable at December 31, 2016 650.1 48.95 2.46 6,381 Options activity – performance based Outstanding at December 31, 2015 3,598.7 $ 61.10 Granted 739.1 34.24 Exercised (385.7 ) 30.47 Forfeited/cancelled/expired (226.2 ) 72.74 Outstanding at December 31, 2016 3,725.9 58.23 3.45 24,970 Exercisable at December 31, 2016 900.5 31.67 0.96 14,760 Options activity – all options Outstanding at December 31, 2015 5,068.4 $ 52.91 Granted 2,205.0 34.48 Exercised (1,045.9 ) 18.54 Forfeited/cancelled/expired (294.6 ) 66.82 Outstanding at December 31, 2016 5,932.9 51.42 4.05 51,991 Exercisable at December 31, 2016 1,550.6 38.91 1.59 21,141
Stock Options Exercised	Cash proceeds, tax benefits and intrinsic value related to total stock options exercised during 2014, 2015 and 2016, were as follows (U.S. dollars in thousands): December 31, 2014 2015 2016 Cash proceeds from stock options exercised $ 11,042 $ 13,041 $ 15,707 Tax benefit realized for stock options exercised 11,947 4,451 3,840 Intrinsic value of stock options exercised 17,159 12,085 30,587
Nonvested Restricted Stock Awards	Nonvested restricted stock awards as of December 31, 2016 and changes during the year ended December 31, 2016 were as follows: Number of Shares (in thousands) Weighted-average Grant Date Fair Value Nonvested at December 31, 2015 662.2 $ 60.87 Granted 220.9 39.62 Vested (210.3 ) 58.20 Forfeited (76.4 ) 63.34 Nonvested at December 31, 2016 596.4 53.62

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2016
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 December 31, 2015 Level 1 Level 2 Level 3 Total Financial assets (liabilities): Cash equivalents and current investments $ 47,121 $ ─ $ ─ $ 47,121 Forward contracts ─ 485 ─ 485 Life insurance contracts ─ ─ 27,292 27,292 Total $ 47,121 $ 485 $ 27,292 $ 74,898 Fair Value at December 31, 2016 Level 1 Level 2 Level 3 Total Financial assets (liabilities): Cash equivalents and current investments $ 50,307 $ ─ $ ─ $ 50,307 Other long term assets 2,782 ─ ─ 2,782 Forward contracts ─ 1,371 ─ 1,371 Life insurance contracts ─ ─ 32,286 32,286 Total $ 53,089 $ 1,371 $ 32,286 $ 86,746
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 2015 2016 Beginning balance at January 1 $ 26,280 $ 27,292 Actual return on plan assets: Relating to assets still held at the reporting date (1,597 ) 2,196 Purchases and issuances 3,025 3,051 Sales and settlements (416 ) (252 ) Transfers into Level 3 ─ ─ Ending balance at December 31 $ 27,292 $ 32,287

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Taxes [Abstract]
Consolidated Income Before Provision for Income Taxes	Consolidated income before provision for income taxes consists of the following for the years ended December 31, 2014, 2015 and 2016 (U.S. dollars in thousands): 2014 2015 2016 U.S. $ 184,476 $ 134,473 $ (19,119 ) Foreign 114,031 77,486 231,958 Total $ 298,507 $ 211,959 $ 212,839
Provision for Current and Deferred Income Taxes	The provision for current and deferred taxes for the years ended December 31, 2014, 2015 and 2016 consists of the following (U.S. dollars in thousands): 2014 2015 2016 Current Federal $ 37,402 $ 6,328 $ ─ State 2,095 1,483 (718 ) Foreign 48,904 50,403 70,652 88,401 58,214 69,934 Deferred Federal (380 ) 16,556 (27,171 ) State 444 (674 ) 1,104 Foreign 20,866 4,817 25,886 20,930 20,699 (181 ) Provision for income taxes $ 109,331 $ 78,913 $ 69,753
Deferred Tax Assets and Liabilities	The principal components of deferred taxes are as follows (U.S. dollars in thousands): Year Ended December 31, 2015 2016 Deferred tax assets: Inventory differences $ 5,222 $ 2,521 Foreign tax credit and other foreign benefits 86,729 145,169 Stock-based compensation 13,842 11,470 Accrued expenses not deductible until paid 46,597 32,796 Foreign currency exchange 8,976 4,826 Net operating losses 10,994 9,584 Capitalized research and development 1,632 358 Exchange gains and losses 55,643 ─ Other 964 1,063 Gross deferred tax assets 230,599 207,787 Deferred tax liabilities: Foreign currency exchange ─ 105 Intangibles step-up 13,607 12,107 Overhead allocation to inventory 5,101 4,820 Amortization of intangibles 18,733 19,091 Foreign outside basis in controlled foreign corporation 84,434 106,846 Other 35,257 20,572 Gross deferred tax liabilities 157,132 163,541 Valuation allowance (49,271 ) (9,137 ) Deferred taxes, net $ 24,196 $ 35,109
Deferred Tax Asset Valuation Adjustments	The deferred tax asset valuation adjustments for the years ended December 31, 2014, 2015 and 2016 are as follows (U.S. dollars in thousands): Year Ended December 31, 2014 2015 2016 Balance at the beginning of period $ 10,803 $ 35,999 $ 49,271 Additions charged to cost and expenses 28,687 12,948 692 Decreases (3,546 ) (1) (2,943 ) (1) (40,442 ) (4) Adjustments 55 (2) 3,267 (2) (384 ) (2) Balance at the end of the period $ 35,999 (3) $ 49,271 (3) $ 9,137 (1) Decreases in valuation allowance due to lapse in statute of limitation of the net operating losses carryforward which had no impact to the income statement. (2) Represents the net currency effects of translating valuation allowances at current rates of exchange. (3) The increase was due primarily to the deferred tax assets created by the unrealized loss in Venezuela for which the Company set up a full valuation allowance. (4) Decrease in valuation allowance due to lapse in statute of limitation of the net operating losses carryforward and due to the write off of Venezuelan deferred tax assets, which had no impact to the income statement.
Components of Deferred Taxes, Net	The components of deferred taxes, net on a jurisdiction basis are as follows (U.S. dollars in thousands): Year Ended December 31, 2015 2016 Net current deferred tax assets $ ─ $ ─ Net noncurrent deferred tax assets 40,373 35,752 Total net deferred tax assets 40,373 35,752 Net current deferred tax liabilities ─ ─ Net noncurrent deferred tax liabilities 16,177 643 Total net deferred tax liabilities 16,177 643 Deferred taxes, net $ 24,196 $ 35,109
Reconciliation of Statutory to Effective Tax Rate	The actual tax rate for the years ended December 31, 2014, 2015 and 2016 compared to the statutory U.S. Federal tax rate is as follows: Year Ended December 31, 2014 2015 2016 Income taxes at statutory rate 35.00 % 35.00 % 35.00 % Foreign tax rate differential ─ .92 (1.98 ) Non-deductible expenses 0.12 0.09 0.11 Controlled foreign corporation losses 1.48 1.09 (2.63 ) Section 987 implementation ─ ─ 2.69 Other 0.03 0.13 (0.42 ) 36.63 % 37.23 % 32.77 %

Derivative Financial Instrume48

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2016
Derivative Financial Instruments [Abstract]
Gains (Losses) Related to Derivative Instruments Not Designated as Hedging Instruments	The following table summarizes gains (losses) related to derivative instruments not designated as hedging instruments during the years ended December 31, 2015 and 2016 (U.S. dollars in thousands): Amount of Gain (Loss) Recognized in Income Year Ended December 31, Derivatives not designated as hedging instruments: Location of Gain (Loss) Recognized in Income 2014 2015 2016 Foreign currency contracts Other income (expense) $ — $ 38 $ 39
Gains (Losses) Related to Derivative Instruments Designated as Cash Flow Hedges	The following table summarizes gains (losses) related to derivative instruments recorded in other comprehensive income (loss) during the years ended December 31, 2015 and 2016 (U.S. dollars in thousands): Amount of Gain (Loss) Recognized in Other Comprehensive Loss Year Ended December 31, Derivatives designated as hedging instruments: 2014 2015 2016 Foreign currency forward contracts related to intercompany $ 1,578 $ 590 $ (1,423 ) The following table summarizes gains (losses) relating to derivative instruments reclassified from accumulated other comprehensive loss into income during the years ended December 31, 2015 and 2016 (U.S. dollars in thousands): Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income Year Ended December 31, Derivatives designated as hedging instruments: Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income 2014 2015 2016 Foreign currency forward contracts related to intercompany license fees and product sales hedges Revenue $ 2,725 $ 1,731 $ (1,088 ) Foreign currency forward contracts related to intercompany selling expense hedges Selling expenses $ — $ 397 $ (1,544 )

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2016
Segment Information [Abstract]
Revenue by Region	Revenue generated in each of these regions is set forth below (U.S. dollars in thousands): Year Ended December 31, 2014 2015 2016 Greater China $ 948,523 $ 771,667 $ 794,393 North Asia 782,985 686,555 692,738 South Asia/Pacific 328,388 321,971 296,758 Americas 329,027 329,668 276,590 EMEA 180,572 137,186 147,318 Total $ 2,569,495 $ 2,247,047 $ 2,207,797
Revenue by Product Line	Revenue generated by each of the Company's product lines is set forth below (U.S. dollars in thousands): Year Ended December 31, 2014 2015 2016 Nu Skin $ 1,562,595 $ 1,363,539 $ 1,308,135 Pharmanex 1,000,279 877,924 892,738 Other 6,621 5,584 6,924 Total $ 2,569,495 $ 2,247,047 $ 2,207,797
Significant Geographical Areas and Long-Lived Assets	Additional information as to the Company's operations in the most significant geographical areas is set forth below (U.S. dollars in thousands): Year Ended December 31, Revenue: 2014 2015 2016 Mainland China $ 675,082 $ 565,527 $ 610,414 South Korea 467,720 422,341 413,696 Japan 315,265 264,214 279,042 United States 230,767 243,748 201,239 December 31, Long-lived assets: 2015 2016 Mainland China $ 110,839 $ 97,867 South Korea 48,702 41,545 Japan 13,587 11,517 United States 271,057 283,868

The Company (Details)

The Company (Details)	12 Months Ended
	Dec. 31, 2016Region
The Company [Abstract]
Number of geographic regions	5

Summary of Significant Accoun51

Summary of Significant Accounting Policies, Inventories (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Inventories [Abstract]
Write-down of estimated surplus inventory	$ 37,900
Raw materials		$ 108,276	$ 114,193
Finished goods		141,660	151,063
Inventories		249,936	265,256
Inventory Valuation Reserve [Member]
Valuation Allowance [Roll Forward]
Beginning balance, adjustments to inventory carrying value		20,744	56,034	$ 5,934
Additions		24,906	38,605	77,379
Write-offs		(37,655)	(73,895)	(27,279)
Ending balance, adjustments to inventory carrying value		$ 7,995	$ 20,744	$ 56,034

Summary of Significant Accoun52

Summary of Significant Accounting Policies, Property and Equipment (Details)	12 Months Ended
	Dec. 31, 2016
Building [Member]
Property and Equipment [Abstract]
Useful life	39 years
Furniture and Fixtures [Member] | Minimum [Member]
Property and Equipment [Abstract]
Useful life	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property and Equipment [Abstract]
Useful life	7 years
Computers and Equipment [Member] | Minimum [Member]
Property and Equipment [Abstract]
Useful life	3 years
Computers and Equipment [Member] | Maximum [Member]
Property and Equipment [Abstract]
Useful life	5 years
Leasehold Improvements [Member]
Property and Equipment [Abstract]
Estimated useful life description	Shorter of estimated useful life or lease term
Scanners [Member]
Property and Equipment [Abstract]
Useful life	3 years
Vehicles [Member] | Minimum [Member]
Property and Equipment [Abstract]
Useful life	3 years
Vehicles [Member] | Maximum [Member]
Property and Equipment [Abstract]
Useful life	5 years

Summary of Significant Accoun53

Summary of Significant Accounting Policies, Revenue Recognition (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue Recognition [Abstract]
Sales returns	$ 61.2	$ 65.6	$ 83.6
Allowance for Product Returns [Member]
Revenue Recognition [Abstract]
Accrued reserve	$ 6.1	$ 7.8

Summary of Significant Accoun54

Summary of Significant Accounting Policies, Advertising Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Advertising Expense [Abstract]
Advertising costs incurred	$ 15.9	$ 11	$ 19.6

Summary of Significant Accoun55

Summary of Significant Accounting Policies, Research and Development (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Research and Development [Abstract]
Research and development expense	$ 24.3	$ 20.1	$ 18.9

Summary of Significant Accoun56

Summary of Significant Accounting Policies, Uncertain Tax Positions (Details) - Multiple Foreign and Domestic Authorities [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Gross balance at beginning of year	$ 7,772	$ 5,987	$ 7,484
Increases related to prior year tax positions	185	1,677	0
Increases related to current year tax positions	918	1,119	2,700
Settlements	(3,369)	0	0
Decreases due to lapse of statutes of limitations	(252)	(667)	(4,106)
Currency adjustments		(344)	(91)
Currency adjustments	36
Gross balance at end of year	5,290	7,772	5,987
Unrecognized tax benefits that would impact effective tax rate	1,000	900
Uncertain Tax Positions [Abstract]
Interest and penalties expenses/(benefits)	(800)	400	400
Accrued interest and penalties	$ 900	$ 1,700	$ 1,300

Summary of Significant Accoun57

Summary of Significant Accounting Policies, Foreign Currency Translation (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Foreign Currency Translation [Abstract]
Cumulative translation adjustment related to foreign currency adjustment	$ (84.7)	$ (71.6)	$ (52.6)
Cumulative translation adjustment related to foreign currency adjustment, tax	$ 13.4	$ 10.9	$ 10.8

Summary of Significant Accoun58

Summary of Significant Accounting Policies, Classification of Venezuela as a Highly Inflationary Economy and Devaluation of Its Currency (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Jun. 30, 2014USD ($)VEB / $	Mar. 31, 2014USD ($)VEB / $Mechanism	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Mar. 31, 2015VEB / $	Dec. 31, 2013USD ($)
Operations in Venezuela [Abstract]
Total assets			$ 1,474,045	$ 1,505,843
Monetary assets			357,246	289,354	$ 288,415		$ 525,153
Operations in Venezuela [Abstract]
Foreign currency transaction losses on net monetary assets denominated in bolivar				10,200	$ 46,300
Other Income (Expense), Net [Member]
Operations in Venezuela [Abstract]
Foreign currency transaction losses on net monetary assets denominated in bolivar	$ 25,300	$ 14,700		10,200
Venezuela [Member]
Operations in Venezuela [Abstract]
Total assets			0	7,900
Monetary assets			0	4,300
Operations in Venezuela [Abstract]
Number of foreign exchange mechanisms | Mechanism		2
SICAD I [Member] | Venezuela [Member]
Operations in Venezuela [Abstract]
Foreign currency exchange rate for SIMADI | VEB / $		10.7
SICAD II [Member] | Venezuela [Member]
Operations in Venezuela [Abstract]
Foreign currency exchange rate for SIMADI | VEB / $	50
SIMADI [Member] | Venezuela [Member]
Operations in Venezuela [Abstract]
Foreign currency exchange rate for SIMADI | VEB / $						193
Correct Certain Accounting Errors for Hyper-Inflationary Adjustments with Respect to Operations in Venezuela [Member]
Operations in Venezuela [Abstract]
Out-of-period adjustment to income statement			6,300
Subsidiary [Member] | Venezuela [Member]
Operations in Venezuela [Abstract]
Payable to parent company			$ 0	$ 33,700
Sales Revenue [Member] | Geographic Concentration Risk [Member]
Operations in Venezuela [Abstract]
Concentration risk percentage			0.10%	0.20%	1.00%

Summary of Significant Accoun59

Summary of Significant Accounting Policies, Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Fair Value of Financial Instruments [Abstract]
Long-term debt fair value	$ 497.4	$ 252.4

Summary of Significant Accoun60

Summary of Significant Accounting Policies, Stock-Based Compensation (Details) - General and Administrative Expense [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock-Based Compensation [Abstract]
Compensation expense related to equity compensation plans	$ 8.9	$ 7.4	$ 17.5
Reversal of compensation expense for certain performance based awards no longer expected to vest	$ 9.6	$ 7.6	$ 4.7

Summary of Significant Accoun61

Summary of Significant Accounting Policies, Accounting for Derivative Instruments and Hedging Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounting for Derivative Instruments and Hedging Activities [Abstract]
Pretax net gains related to foreign currency translation adjustments	$ 0	$ 0	$ 1.4

Prepaid Expenses and Other (Det

Prepaid Expenses and Other (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Prepaid Expenses and Other [Abstract]
Deferred charges	$ 9,319	$ 14,940
Prepaid income taxes	6,799	40,407
Prepaid inventory and import costs	10,857	10,573
Prepaid rent, insurance and other occupancy costs	13,398	11,590
Prepaid promotion and event cost	4,126	4,486
Prepaid other taxes	4,778	4,146
Forward contracts	1,371	485
Deposits	1,079	1,513
Other	13,349	13,807
Total prepaid expenses and other	$ 65,076	$ 101,947

Property and Equipment (Details

Property and Equipment (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property and Equipment [Abstract]
Property and equipment		$ 678,457	$ 666,130
Less: accumulated depreciation		(233,725)	(211,593)
Property and equipment, net		444,732	454,537
Depreciation expense		60,800	61,600	$ 46,500
Land [Member]
Property and Equipment [Abstract]
Property and equipment		33,158	33,610
Buildings [Member]
Property and Equipment [Abstract]
Property and equipment		266,436	272,208
Construction in Progress [Member]
Property and Equipment [Abstract]
Property and equipment	[1]	31,124	7,827
Furniture and Fixtures [Member]
Property and Equipment [Abstract]
Property and equipment		82,194	81,274
Computers and Equipment [Member]
Property and Equipment [Abstract]
Property and equipment		143,014	141,079
Leasehold Improvements [Member]
Property and Equipment [Abstract]
Property and equipment		109,863	116,120
Scanners [Member]
Property and Equipment [Abstract]
Property and equipment		10,578	11,805
Vehicles [Member]
Property and Equipment [Abstract]
Property and equipment		2,090	2,207
Internal-Use Software Development Costs [Member]
Property and Equipment [Abstract]
Property and equipment		$ 25,800	$ 700
[1]	Construction in progress includes $0.7 million and $25.8 million as of December 31, 2015 and 2016, respectively, of eligible capitalized internal-use software development costs which will be reclassified to computers and equipment when placed into service.

Goodwill and Other Intangible64

Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill and Indefinite Life Intangible Assets [Abstract]
Goodwill	$ 114,954	$ 112,446
Trademarks and trade names	24,599	24,599
Other indefinite lived intangibles	3,763	0
Total goodwill and indefinite lived intangibles	143,316	137,045
Finite Life Intangible Assets [Abstract]
Gross carrying amount	129,391	128,304
Accumulated amortization	$ 94,200	85,894
Weighted average amortization period	15 years
Amortization expense	$ 8,400	8,600	$ 8,400
Writeoff of fully amortized intangible assets		12,000
Annual Estimated Future Amortization Expense [Abstract]
2,017	8,460
2,018	7,650
2,019	7,480
2,020	4,160
2,021	2,730
Impairment Charges [Abstract]
Goodwill impairment charge	0	0	0
Indefinite life intangible assets impairment charge	0	0	$ 0
Scanner Technology [Member]
Finite Life Intangible Assets [Abstract]
Gross carrying amount	46,482	46,482
Accumulated amortization	$ 36,624	33,590
Weighted average amortization period	18 years
Developed Technology [Member]
Finite Life Intangible Assets [Abstract]
Gross carrying amount	$ 22,500	22,500
Accumulated amortization	$ 18,383	17,558
Weighted average amortization period	20 years
Distribution Network [Member]
Finite Life Intangible Assets [Abstract]
Gross carrying amount	$ 11,598	11,598
Accumulated amortization	$ 11,598	11,096
Weighted average amortization period	15 years
Trademarks [Member]
Finite Life Intangible Assets [Abstract]
Gross carrying amount	$ 2,592	2,409
Accumulated amortization	$ 1,011	879
Weighted average amortization period	15 years
Other [Member]
Finite Life Intangible Assets [Abstract]
Gross carrying amount	$ 46,219	45,315
Accumulated amortization	$ 26,584	$ 22,771
Weighted average amortization period	8 years

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Assets [Abstract]
Deferred taxes	$ 35,752	$ 40,373
Deposits for noncancelable operating leases	38,858	39,016
Deposit for customs assessment	0	35,424
Cash surrender value for life insurance policies	32,286	27,292
Other	29,573	23,354
Total other assets	$ 136,469	$ 165,459

Accrued Expenses (Details)

Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued Expenses [Abstract]
Accrued sales force commissions and other payments	$ 126,153	$ 166,273
Accrued other taxes	31,748	35,922
Accrued payroll and other employee expenses	25,412	24,390
Accrued payable to vendors	28,456	40,914
Accrued royalties	4,767	9,701
Sales return reserve	6,125	7,752
Deferred revenue	13,494	6,644
Other	38,868	19,320
Total accrued expenses	$ 275,023	$ 310,916

Other Liabilities (Details)

Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Liabilities [Abstract]
Deferred tax liabilities	$ 643	$ 16,177
Reserve for other tax liabilities	6,264	9,463
Reserve for customs assessment	0	3,600
Liability for deferred compensation plan	36,730	33,456
Pension plan benefits reserve	5,631	4,859
Build to suit - financing obligation	9,543	10,238
Deferred rent and deferred tenant incentives	5,952	6,336
Asset retirement obligation	5,682	4,682
Other	6,354	2,069
Total other liabilities	$ 76,799	$ 90,880

Long-Term Debt, Credit Agreemen

Long-Term Debt, Credit Agreement (Details) $ in Thousands, ¥ in Billions		12 Months Ended
		Dec. 31, 2016USD ($)		Dec. 31, 2016JPY (¥)		Dec. 31, 2015USD ($)	Dec. 31, 2015JPY (¥)	Oct. 09, 2014USD ($)	Oct. 09, 2014JPY (¥)
Long-term Debt [Abstract]
Outstanding balance	[1]	$ 435,178
Credit Agreement [Member] | Maximum [Member]
Long-term Debt [Abstract]
Consolidated leverage ratio		2.25
Credit Agreement [Member] | Minimum [Member]
Long-term Debt [Abstract]
Consolidated interest coverage ratio		3
Term Loan Facility [Member]
Long-term Debt [Abstract]
Original principal amount		$ 127,500						$ 127,500
Term of loan		5 years
Outstanding balance		$ 108,400	[2],[3]			$ 118,700
Japanese Yen Term Loan Facility [Member]
Long-term Debt [Abstract]
Original principal amount | ¥				¥ 6.6					¥ 6.6
Term of loan		5 years
Outstanding balance		$ 47,900	[2],[3]	¥ 5.6	[2],[3]	51,100	¥ 6.1
Revolving Credit Facility [Member]
Long-term Debt [Abstract]
Borrowing capacity								$ 187,500
Term of loan		5 years
Outstanding balance		$ 47,500	[2],[3]			$ 47,500
[1]	The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $18.3 million, which is not reflected in this table.
[2]	As of December 31, 2016, the current portion of the Company's debt (i.e. becoming due in the next 12 months) included $13.5 million of the balance of its U.S. dollar denominated debt under the Credit Agreement facility, $6.0 million of the balance of its Japanese yen-denominated debt under the Credit Agreement facility, $10.0 million of the Korea subsidiary loan and $5.7 million of the Japan subsidiary loan. The Company has classified the $47.5 million borrowed under the revolving line of credit and the $10.0 million of the Korea subsidiary loan 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 as well as pay off the Korea subsidiary loan in 2017.
[3]	The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $12.8 million and debt issuance costs of $5.5 million (consisting of $15.1 million related to the Convertible Note and $3.2 million related to the credit agreement), which is not reflected in this table.

Long-Term Debt, Convertible Not

Long-Term Debt, Convertible Note (Details)		Jun. 16, 2016USD ($)	Dec. 31, 2016USD ($)d$ / sharesshares	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Convertible Debt [Abstract]
Equity component of convertible notes allocated to additional paid-in capital			$ 6,825,000
Net Carrying Amount of Liability Component [Abstract]
Principal	[1]		435,178,000
Unamortized debt discount (conversion option)			(12,800,000)
Unamortized debt discount (issuance costs)			(5,500,000)
Debt issuance costs			6,596,000	$ 0	$ 5,739,000
Interest expense			15,600,000	7,900,000	$ 5,700,000
Convertible Note [Member]
Convertible Debt [Abstract]
Original principal amount		$ 210,000,000	$ 210,000,000
Interest rate			4.75%
Maturity date			Jun. 15, 2020
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			30 days
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
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%
Net Carrying Amount of Liability Component [Abstract]
Principal			$ 210,000,000	$ 0
Unamortized debt discount (conversion option)			(9,622,000)
Total long-term debt, net			200,378,000
Unamortized debt discount (issuance costs)			(5,506,000)
Net carrying amount			194,872,000
Debt issuance costs			6,596,000
Additions to deferred financing cost			6,300,000
Adjustments to additional paid-in capital for debt issuance costs			300,000
Interest expense			7,500,000
Contractual interest			5,400,000
Amortization of debt issuance costs and debt discount			$ 2,100,000
[1]	The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $18.3 million, which is not reflected in this table.

Long-Term Debt, Debt Facilities

Long-Term Debt, Debt Facilities (Details) $ in Thousands, ¥ in Billions		12 Months Ended
		Dec. 31, 2016USD ($)		Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2016JPY (¥)		Jun. 16, 2016USD ($)	Dec. 31, 2015JPY (¥)	Oct. 09, 2014USD ($)	Oct. 09, 2014JPY (¥)
Long-term Debt [Abstract]
Balance	[1]	$ 435,178
Current portion of long-term debt		82,727		$ 67,849
Unamortized debt discount		12,800
Unamortized debt issuance costs		5,500
Unamortized debt discount and debt issuance costs		18,300
Interest expense		15,600		7,900	$ 5,700
Credit Agreement [Member]
Long-term Debt [Abstract]
Unamortized debt discount and debt issuance costs		3,200
Term Loan Facility [Member]
Long-term Debt [Abstract]
Original principal amount		127,500								$ 127,500
Balance		$ 108,400	[2],[3]	118,700
Interest rate		Variable 30 day: 3.52%
Interest rate		3.52%				3.52%
Term of variable rate		30 days
Repayment terms		One half of the principal amount payable in increasing quarterly installments over a five-year period beginning on December 31, 2014, with the remainder payable at the end of the five-year term.
Percentage of principal payable in installments		50.00%
Frequency of payment		Quarterly
Term of loan		5 years
Current portion of long-term debt		$ 13,500
Japanese Yen Term Loan Facility [Member]
Long-term Debt [Abstract]
Original principal amount | ¥						¥ 6.6					¥ 6.6
Balance		$ 47,900	[2],[3]	51,100		¥ 5.6	[2],[3]		¥ 6.1
Interest rate		Variable 30 day: 2.75%
Interest rate		2.75%				2.75%
Term of variable rate		30 days
Repayment terms		One half of the principal amount payable in increasing quarterly installments over a five-year period beginning on December 31, 2014, with the remainder payable at the end of the five-year term.
Percentage of principal payable in installments		50.00%
Frequency of payment		Quarterly
Term of loan		5 years
Current portion of long-term debt		$ 6,000
Revolving Credit Facility [Member]
Long-term Debt [Abstract]
Balance		$ 47,500	[2],[3]	47,500
Interest rate		Variable 30 day: 3.52%
Interest rate		3.52%				3.52%
Term of variable rate		30 days
Repayment terms		Revolving line of credit expires October 2019.
Term of loan		5 years
Korean Subsidiary Loan [Member]
Long-term Debt [Abstract]
Original principal amount		$ 20,000
Balance		$ 10,000	[2]	20,000
Interest rate		1.12%				1.12%
Repayment terms		Remaining balance payable on March 16, 2018.
Current portion of long-term debt		$ 10,000
Japan Subsidiary Loan [Member]
Long-term Debt [Abstract]
Original principal amount | ¥						¥ 2
Balance		$ 11,400	[2]	16,600		¥ 1.3	[2]		¥ 2
Interest rate		0.66%				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 long-term debt		$ 5,700
Convertible Note [Member]
Long-term Debt [Abstract]
Original principal amount		210,000						$ 210,000
Balance		$ 210,000		$ 0
Interest rate		7.10%				7.10%
Interest rate		4.75%				4.75%
Repayment terms		Principal amount payable on June 15, 2020.
Unamortized debt discount		$ 9,622
Unamortized debt issuance costs		5,506
Unamortized debt discount and debt issuance costs		15,100
Interest expense		$ 7,500
[1]	The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $18.3 million, which is not reflected in this table.
[2]	As of December 31, 2016, the current portion of the Company's debt (i.e. becoming due in the next 12 months) included $13.5 million of the balance of its U.S. dollar denominated debt under the Credit Agreement facility, $6.0 million of the balance of its Japanese yen-denominated debt under the Credit Agreement facility, $10.0 million of the Korea subsidiary loan and $5.7 million of the Japan subsidiary loan. The Company has classified the $47.5 million borrowed under the revolving line of credit and the $10.0 million of the Korea subsidiary loan 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 as well as pay off the Korea subsidiary loan in 2017.
[3]	The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $12.8 million and debt issuance costs of $5.5 million (consisting of $15.1 million related to the Convertible Note and $3.2 million related to the credit agreement), which is not reflected in this table.

Long-Term Debt, Maturities of L

Long-Term Debt, Maturities of Long-Term Debt (Details) $ in Thousands	Dec. 31, 2016USD ($)
Maturities of Long-term Debt [Abstract]
2,017	$ 82,727
2,018	29,840
2,019	112,611
2,020	210,000
2,021	0
Thereafter	0
Total	435,178	[1]
Unamortized debt discount and debt issuance costs	$ 18,300
[1]	The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $18.3 million, which is not reflected in this table.

Lease and Financing Obligatio72

Lease and Financing Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
New Building [Abstract]
Value of New Building	$ 678,457	$ 666,130
Accumulated depreciation	233,725	211,593
Deposit paid to landlord	38,858	39,016
Operating Leases, Minimum Future Obligations [Abstract]
2,017	36,180
2,018	30,001
2,019	21,310
2,020	11,602
2,021	5,997
Thereafter	15,127
Total	120,217
Financing Obligations, Minimum Future Obligations [Abstract]
2,017	631
2,018	650
2,019	670
2,020	690
2,021	698
Thereafter	2,502
Total minimum lease payments	5,841
Rent expense for operating leases	48,200	52,400	$ 52,300
Interest expense associated with financing obligation	$ 200	100	$ 0
New Regional Headquarters Building [Member]
New Building [Abstract]
Extension period for lease	10 years
Initial term of lease	10 years
Value of New Building	$ 18,900	19,900
Accumulated depreciation	800	300
Financing obligation	10,000	10,600
Deposit paid to landlord	9,100	9,300
Tenant incentive asset	4,900	5,600
Deferred tenant incentive liability	$ 4,500	$ 5,100
Office Space and Computer Hardware [Member]
New Building [Abstract]
Extension period for lease	3 years

Capital Stock (Details)

Capital Stock (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)Vote$ / sharesshares	Dec. 31, 2015USD ($)$ / sharesshares	Dec. 31, 2014USD ($)shares	Oct. 31, 2015USD ($)	Aug. 31, 2013USD ($)	Dec. 31, 1998USD ($)
Capital Stock [Abstract]
Preferred stock, authorized (in shares)	25,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.001
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.001	$ 0.001
Preferred stock, shares outstanding (in shares)	0	0
Weighted Average Shares Outstanding [Abstract]
Basic weighted-average common shares outstanding (in shares)	55,412,000	57,997,000	59,073,000
Effect of Dilutive Securities [Abstract]
Stock awards and options (in shares)	683,000	1,060,000	1,814,000
Convertible note (in shares)	2,000	0	0
Diluted weighted-average common shares outstanding (in shares)	56,097,000	59,057,000	60,887,000
Repurchases of Common Stock [Abstract]
Common stock repurchased | $	$ 247,208	$ 164,094	$ 45,724
Amount available for repurchases | $	$ 199,700
Stock Options [Member]
Effect of Dilutive Securities [Abstract]
Anti-dilutive shares excluded from calculation of diluted earnings per share (in shares)	2,000,000	1,800,000	2,700,000
Common Class A [Member]
Capital Stock [Abstract]
Common stock, shares authorized (in shares)	500,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.001
Number of votes per share | Vote	1
Number of shares of class A common stock issued after conversion of Class B common stock (in shares)	1
Repurchases of Common Stock [Abstract]
Shares repurchased (in shares)	4,500,000	3,800,000	800,000
Common stock repurchased | $	$ 247,208	$ 164,094	$ 45,724
Authorized amount | $				$ 500,000		$ 10,000
Increase in authorized amount | $					$ 400,000
Common Class B [Member]
Capital Stock [Abstract]
Common stock, shares authorized (in shares)	100,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.001
Common stock, shares outstanding (in shares)	0	0
Number of votes per share | Vote	10

Stock-Based Compensation, Equit

Stock-Based Compensation, Equity Incentive Plans (Details) $ in Thousands, shares in Millions	May 24, 2016shares	Jun. 03, 2013shares	Dec. 31, 2016USD ($)InstallmentLevel	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Apr. 30, 2010shares
Stock-Based Compensation [Abstract]
Stock-based compensation expense (income) | $			$ 8,890	$ 7,400	$ 17,504
Performance-Based Options [Member]
Stock-Based Compensation [Abstract]
Stock-based compensation expense (income) | $			$ (7,500)	$ (6,400)	$ 5,200
2010 Omnibus Incentive Plan [Member]
Stock-Based Compensation [Abstract]
Number of shares authorized for issuance (in shares)						7
2010 Omnibus Incentive Plan [Member] | Stock Options [Member] | Minimum [Member]
Stock-Based Compensation [Abstract]
Contractual term of stock options granted			7 years
2010 Omnibus Incentive Plan [Member] | Stock Options [Member] | Maximum [Member]
Stock-Based Compensation [Abstract]
Contractual term of stock options granted			10 years
Amended and Restated 2010 Omnibus Incentive Plan [Member]
Stock-Based Compensation [Abstract]
Number of additional shares authorized for issuance (in shares)		3.2
Amended and Restated 2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member]
Stock-Based Compensation [Abstract]
Number of installments for vesting | Installment			4
Number of established performance levels for vesting | Level			4
Amended and Restated 2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | First Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			25.00%
Amended and Restated 2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | Second Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			25.00%
Amended and Restated 2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | Third Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			25.00%
Amended and Restated 2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | Fourth Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			25.00%
Second Amended and Restated 2010 Omnibus Incentive Plan [Member]
Stock-Based Compensation [Abstract]
Number of additional shares authorized for issuance (in shares)	3.8

Stock-Based Compensation, Stock

Stock-Based Compensation, Stock Option Valuation Assumptions (Details) - Stock Options [Member] - $ / shares		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value Assumptions [Abstract]
Weighted average grant date fair value of grants (in dollars per share)		$ 12.59	$ 16.26	$ 23.01
Risk-free interest rate	[1]	1.40%	1.70%	1.70%
Dividend yield	[2]	2.30%	2.10%	1.90%
Expected volatility	[3]	47.90%	46.80%	45.40%
Expected life in months	[4]	68 months	65 months	62 months
[1]	The risk-free interest rate is based upon the rate on a zero coupon U.S. Treasury bill, for periods within the contractual life of the option, in effect at the time of the grant.
[2]	The dividend yield is based on the average of historical stock prices and actual dividends paid.
[3]	Expected volatility is based on the historical volatility of the Company's stock price, over a period similar to the expected life of the option.
[4]	The expected term of the option is based on the historical employee exercise behavior, the vesting terms of the respective option, and a contractual life of either seven or ten years.

Stock-Based Compensation, Sto76

Stock-Based Compensation, Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock Options [Member]
Options [Roll Forward]
Outstanding at beginning of year (in shares)	5,068,400
Granted (in shares)	2,205,000
Exercised (in shares)	(1,045,900)
Forfeited/cancelled/expired (in shares)	(294,600)
Outstanding at end of year (in shares)	5,932,900	5,068,400
Exercisable at end of year (in shares)	1,550,600
Options, Weighted-Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)	$ 52.91
Granted (in dollars per share)	34.48
Exercised (in dollars per share)	18.54
Forfeited/cancelled/expired (in dollars per share)	66.82
Outstanding at end of year (in dollars per share)	51.42	$ 52.91
Exercisable at end of year (in dollars per share)	$ 38.91
Outstanding options, weighted-average remaining contractual term	4 years 18 days
Exercisable options, weighted-average remaining contractual term	1 year 7 months 2 days
Options, Additional Information [Abstract]
Aggregate intrinsic value	$ 51,991
Aggregate intrinsic value, exercisable	21,141
Fair value of options vested, net of tax			$ (4,200)
Fair value of options vested, net of tax	$ 1,000	$ 2,800
Service-Based Options [Member]
Options [Roll Forward]
Outstanding at beginning of year (in shares)	1,469,700
Granted (in shares)	1,465,900
Exercised (in shares)	(660,200)
Forfeited/cancelled/expired (in shares)	(68,400)
Outstanding at end of year (in shares)	2,207,000	1,469,700
Exercisable at end of year (in shares)	650,100
Options, Weighted-Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)	$ 32.85
Granted (in dollars per share)	34.59
Exercised (in dollars per share)	11.56
Forfeited/cancelled/expired (in dollars per share)	47.27
Outstanding at end of year (in dollars per share)	39.93	$ 32.85
Exercisable at end of year (in dollars per share)	$ 48.95
Outstanding options, weighted-average remaining contractual term	5 years 25 days
Exercisable options, weighted-average remaining contractual term	2 years 5 months 16 days
Options, Additional Information [Abstract]
Aggregate intrinsic value	$ 27,021
Aggregate intrinsic value, exercisable	$ 6,381
Performance-Based Options [Member]
Options [Roll Forward]
Outstanding at beginning of year (in shares)	3,598,700
Granted (in shares)	739,100
Exercised (in shares)	(385,700)
Forfeited/cancelled/expired (in shares)	(226,200)
Outstanding at end of year (in shares)	3,725,900	3,598,700
Exercisable at end of year (in shares)	900,500
Options, Weighted-Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)	$ 61.10
Granted (in dollars per share)	34.24
Exercised (in dollars per share)	30.47
Forfeited/cancelled/expired (in dollars per share)	72.74
Outstanding at end of year (in dollars per share)	58.23	$ 61.10
Exercisable at end of year (in dollars per share)	$ 31.67
Outstanding options, weighted-average remaining contractual term	3 years 5 months 12 days
Exercisable options, weighted-average remaining contractual term	11 months 16 days
Options, Additional Information [Abstract]
Aggregate intrinsic value	$ 24,970
Aggregate intrinsic value, exercisable	$ 14,760
Non-Vested Restricted Stock [Member]
Options, Weighted-Average Exercise Price [Roll Forward]
Granted (in dollars per share)	$ 39.62

Stock-Based Compensation, Sto77

Stock-Based Compensation, Stock Options Exercised (Details) - Stock Options [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Options, Additional Information [Abstract]
Cash proceeds from stock options exercised	$ 15,707	$ 13,041	$ 11,042
Tax benefit realized for stock options exercised	3,840	4,451	11,947
Intrinsic value of stock options exercised	$ 30,587	$ 12,085	$ 17,159

Stock-Based Compensation, Nonve

Stock-Based Compensation, Nonvested Restricted Stock Awards (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)$ / sharesshares
Stock Options [Member]
Nonvested Restricted Stock Awards, Weighted-Average Grant Date Fair Value [Abstract]
Granted (in dollars per share)	$ 34.48
Unrecognized Stock-Based Compensation Expense [Abstract]
Unrecognized stock-based compensation expense | $	$ 18.8
Unrecognized stock-based compensation expense, period for recognition	2 years 8 months 12 days
Service-Based Options [Member]
Nonvested Restricted Stock Awards, Weighted-Average Grant Date Fair Value [Abstract]
Granted (in dollars per share)	$ 34.59
Performance-Based Options [Member]
Nonvested Restricted Stock Awards, Weighted-Average Grant Date Fair Value [Abstract]
Granted (in dollars per share)	$ 34.24
Non-Vested Restricted Stock [Member]
Nonvested Restricted Stock Awards, Number of Shares [Roll Forward]
Nonvested at beginning of year (in shares) | shares	662,200
Granted (in shares) | shares	220,900
Vested (in shares) | shares	(210,300)
Forfeited (in shares) | shares	(76,400)
Nonvested at end of year (in shares) | shares	596,400
Nonvested Restricted Stock Awards, Weighted-Average Grant Date Fair Value [Abstract]
Nonvested, beginning balance (in dollars per share)	$ 60.87
Granted (in dollars per share)	39.62
Vested (in dollars per share)	58.20
Forfeited (in dollars per share)	63.34
Nonvested, Ending Balance (in dollars per share)	$ 53.62
Unrecognized Stock-Based Compensation Expense [Abstract]
Unrecognized stock-based compensation expense | $	$ 16.8
Unrecognized stock-based compensation expense, period for recognition	2 years 2 months 12 days

Fair Value (Details)

Fair Value (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair Value on a Recurring Basis [Member]
Financial Assets (Liabilities) [Abstract]
Cash equivalents and current investments	$ 50,307	$ 47,121
Other long term assets	2,782
Forward contracts	1,371	485
Life insurance contracts	32,286	27,292
Financial assets (liabilities), net	86,746	74,898
Restricted current investments	10,900	14,400
Fair Value on a Recurring Basis [Member] | Level 1 [Member]
Financial Assets (Liabilities) [Abstract]
Cash equivalents and current investments	50,307	47,121
Other long term assets	2,782
Forward contracts	0	0
Life insurance contracts	0	0
Financial assets (liabilities), net	53,089	47,121
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
Forward contracts	1,371	485
Life insurance contracts	0	0
Financial assets (liabilities), net	1,371	485
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
Forward contracts	0	0
Life insurance contracts	32,286	27,292
Financial assets (liabilities), net	32,286	27,292
Insurance Company Contracts [Member]
Changes in Fair Value of Level 3 Marketable Securities [Roll Forward]
Beginning balance	27,292	26,280
Actual Return on Plan Assets [Abstract]
Relating to assets still held at the reporting date	2,196	(1,597)
Purchases and issuances	3,051	3,025
Sales and settlements	(252)	(416)
Transfers into Level 3	0	0
Ending balance	$ 32,287	$ 27,292

Income Taxes, Consolidated Inco

Income Taxes, Consolidated Income Before Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Consolidated Income Before Provision for Income Taxes [Abstract]
U.S.	$ (19,119)	$ 134,473	$ 184,476
Foreign	231,958	77,486	114,031
Income before provision for income taxes	$ 212,839	$ 211,959	$ 298,507

Income Taxes, Current and Defer

Income Taxes, Current and Deferred Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current [Abstract]
Federal	$ 0	$ 6,328	$ 37,402
State	(718)	1,483	2,095
Foreign	70,652	50,403	48,904
Current income tax expense (benefit)	69,934	58,214	88,401
Deferred [Abstract]
Federal	(27,171)	16,556	(380)
State	1,104	(674)	444
Foreign	25,886	4,817	20,866
Deferred income tax expense (benefit)	(181)	20,699	20,930
Provision for income taxes	$ 69,753	$ 78,913	$ 109,331

Income Taxes, Deferred Tax Asse

Income Taxes, Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Deferred Tax Assets [Abstract]
Inventory differences	$ 2,521	$ 5,222
Foreign tax credit and other foreign benefits	145,169	86,729
Stock-based compensation	11,470	13,842
Accrued expenses not deductible until paid	32,796	46,597
Foreign currency exchange	4,826	8,976
Net operating losses	9,584	10,994
Capitalized research and development	358	1,632
Exchange gains and losses	0	55,643
Other	1,063	964
Gross deferred tax assets	207,787	230,599
Deferred Tax Liabilities [Abstract]
Foreign currency exchange	105	0
Intangibles step-up	12,107	13,607
Overhead allocation to inventory	4,820	5,101
Amortization of intangibles	19,091	18,733
Foreign outside basis in controlled foreign corporation	106,846	84,434
Other	20,572	35,257
Gross deferred tax liabilities	163,541	157,132
Valuation allowance	(9,137)	(49,271)
Deferred taxes, net	35,109	$ 24,196
Foreign [Member]
Operating Loss Carryforwards [Abstract]
Operating loss carryforwards	31,300
Operating loss carryforwards scheduled to expire	9,800
Operating loss carryforwards that will not expire	21,500
Valuation allowance on operating loss carryforwards	29,800
Tax Credit Carryforwards [Abstract]
Tax credit carryforward	$ 55,700
Foreign [Member] | Minimum [Member]
Operating Loss Carryforwards [Abstract]
Expiration date	Dec. 31, 2017
Tax Credit Carryforwards [Abstract]
Expiration date	Dec. 31, 2025
Foreign [Member] | Maximum [Member]
Operating Loss Carryforwards [Abstract]
Expiration date	Dec. 31, 2026
Tax Credit Carryforwards [Abstract]
Expiration date	Dec. 31, 2026

Income Taxes, Deferred Tax As83

Income Taxes, Deferred Tax Asset Valuation Adjustments (Details) - Deferred Tax Asset Valuation Allowance [Member] - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Valuation Allowance [Roll Forward]
Beginning balance, adjustments to inventory carrying value		$ 49,271	[1]	$ 35,999	[1]	$ 10,803
Additions charged to cost and expenses		692		12,948		28,687
Decreases		(40,442)	[2]	(2,943)	[3]	(3,546)	[3]
Adjustments	[4]	(384)		3,267		55
Ending balance, adjustments to inventory carrying value		$ 9,137		$ 49,271	[1]	$ 35,999	[1]
[1]	The increase was due primarily to the deferred tax assets created by the unrealized loss in Venezuela for which the Company set up a full valuation allowance.
[2]	Decrease in valuation allowance due to lapse in statute of limitation of the net operating losses carryforward and due to the write off of Venezuelan deferred tax assets, which had no impact to the income statement.
[3]	Decreases in valuation allowance due to lapse in statute of limitation of the net operating losses carryforward which had no impact to the income statement.
[4]	Represents the net currency effects of translating valuation allowances at current rates of exchange.

Income Taxes, Components of Def

Income Taxes, Components of Deferred Taxes, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Tax Assets, Net [Abstract]
Net current deferred tax assets	$ 0	$ 0
Net noncurrent deferred tax assets	35,752	40,373
Total net deferred tax assets	35,752	40,373
Deferred Tax Liabilities, Net [Abstract]
Net current deferred tax liabilities	0	0
Net noncurrent deferred tax liabilities	643	16,177
Total net deferred tax liabilities	643	16,177
Deferred taxes, net	$ 35,109	$ 24,196

Income Taxes, Reconciliation of

Income Taxes, Reconciliation of Statutory to Effective Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Effective income tax rate, continuing operations, tax rate reconciliation [Abstract]
Income taxes at statutory rate	35.00%	35.00%	35.00%
Foreign tax rate differential	(1.98%)	0.92%	0.00%
Non-deductible expenses	0.11%	0.09%	0.12%
Controlled foreign corporation losses	(2.63%)	1.09%	1.48%
Section 987 implementation	2.69%	0.00%	0.00%
Other	(0.42%)	0.13%	0.03%
Effective income tax rate, continuing operations	32.77%	37.23%	36.63%
Undistributed earnings of foreign subsidiaries	$ 70	$ 70	$ 50
Deferred tax liability on undistributed foreign earnings	$ 7.6

Employee Benefit Plan (Details)

Employee Benefit Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
401(k) Defined Contribution Plan [Member]
401(k) Defined Contribution Plan [Abstract]
Maximum percentage of compensation that can be deferred	100.00%
Minimum age to make contributions	18 years
Requisite service period	1 day
Percent of employees' base pay matched by employer	4.00%	4.00%	4.00%
Vesting period for Company's matching contributions	2 years
Compensation expense	$ 2.8	$ 2.8	$ 2.7
Additional discretionary contribution by employer, maximum percentage of employees' base pay	10.00%
Additional discretionary contribution by employer, annual vesting percentage	20.00%
Vesting period for Company's additional discretionary contributions	5 years
Defined Benefit Pension Plan [Member] | Japan [Member]
Defined Benefit Pension Plan [Abstract]
Accrued pension liability	$ 5.6	4.8	5.8
Pension expense	$ 0.9	$ 0.7	$ 0.9

Executive Deferred Compensati87

Executive Deferred Compensation Plan (Details) - Executive [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Executive Deferred Compensation Plan [Abstract]
Percentage of matching contribution maximum	10.00%
Percentage of compensation deferred, maximum	80.00%
Percentage of bonus deferred, maximum	100.00%
Percentage vested after ten years of service	50.00%
Number of years of service to attain fifty percent vesting	10 years
Percentage vested per year after ten years of service	5.00%
Minimum age for unvested company contributions to fully vest	60 years
Compensation expense	$ 1.5	$ 2.3	$ 0.3
Long-term deferred compensation liability	36.7	33.5
Investment in Rabbi Trust	$ 32.3	$ 27.3

Derivative Financial Instrume88

Derivative Financial Instruments (Details) $ in Thousands, € in Millions, ¥ in Millions, CAD in Millions, ₩ in Billions	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2016JPY (¥)	Dec. 31, 2016KRW (₩)	Dec. 31, 2015JPY (¥)	Dec. 31, 2015KRW (₩)	Dec. 31, 2015CAD	Dec. 31, 2015EUR (€)
Foreign Currency Derivatives [Abstract]
Unrealized gains/(losses) related to foreign currency cash flow hedges included in accumulated other comprehensive loss	$ 600	$ 300
Cumulative translation adjustments included in accumulated other comprehensive loss	(84,700)	(71,600)	$ (52,600)
Foreign Currency Forward Contracts [Member] | Not Designated as Hedging Instrument [Member]
Foreign Currency Derivatives [Abstract]
Fair value	500	9,000
Foreign Currency Forward Contracts [Member] | Not Designated as Hedging Instrument [Member] | Fair Value Hedges [Member]
Foreign Currency Derivatives [Abstract]
Fair value	$ 500	0
Term to recognize gains (losses) in current earnings	3 months
Foreign Currency Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedges [Member]
Foreign Currency Derivatives [Abstract]
Term to recognize gains (losses) in current earnings	6 months
Foreign Currency Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedges [Member] | Japanese Yen [Member]
Foreign Currency Derivatives [Abstract]
Notional amount	$ 12,000	15,800		¥ 1,400		¥ 1,900
Foreign Currency Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedges [Member] | Euros [Member]
Foreign Currency Derivatives [Abstract]
Notional amount		16,300							€ 15
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)	(1,423)	590	1,578
Foreign Currency Forward Contracts [Member] | Other Income (Expense) [Member] | Not Designated as Hedging Instrument [Member] | Japanese Yen [Member]
Foreign Currency Derivatives [Abstract]
Notional amount		4,200				¥ 500
Foreign Currency Forward Contracts [Member] | Other Income (Expense) [Member] | Not Designated as Hedging Instrument [Member] | Korean Won [Member]
Foreign Currency Derivatives [Abstract]
Notional amount	9,500	4,900			₩ 11.5		₩ 5.8
Foreign Currency Forward Contracts [Member] | Other Income (Expense) [Member] | Not Designated as Hedging Instrument [Member] | Canadian Dollars [Member]
Foreign Currency Derivatives [Abstract]
Notional amount		6,500						CAD 9
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	39	38	0
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	(1,088)	1,731	2,725
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	$ (1,544)	$ 397	$ 0

Supplemental Cash Flow Inform89

Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Supplemental Cash Flow Information [Abstract]
Cash paid for interest	$ 11.6	$ 7	$ 5.3
Cash paid for income taxes	$ 40.9	$ 49.8	171.4
Non-cash charges to fixed assets associated with Korea building lease			19.4
Non-cash increase in long-term liabilities			16.7
Non-cash decrease in long-term assets			$ (2.7)

Segment Information, Revenue by

Segment Information, Revenue by Region (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)Region	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Segment Information [Abstract]
Number of geographic regions | Region	5
Revenue by Region [Abstract]
Revenue	$ 2,207,797	$ 2,247,047	$ 2,569,495
Significant Geographic Area [Member]
Revenue by Region [Abstract]
Revenue	2,207,797	2,247,047	2,569,495
Significant Geographic Area [Member] | Greater China [Member]
Revenue by Region [Abstract]
Revenue	794,393	771,667	948,523
Significant Geographic Area [Member] | North Asia [Member]
Revenue by Region [Abstract]
Revenue	692,738	686,555	782,985
Significant Geographic Area [Member] | South Asia/Pacific [Member]
Revenue by Region [Abstract]
Revenue	296,758	321,971	328,388
Significant Geographic Area [Member] | Americas [Member]
Revenue by Region [Abstract]
Revenue	276,590	329,668	329,027
Significant Geographic Area [Member] | EMEA [Member]
Revenue by Region [Abstract]
Revenue	$ 147,318	$ 137,186	$ 180,572

Segment Information, Revenue 91

Segment Information, Revenue by Product Lines (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue by Product Line [Abstract]
Revenue	$ 2,207,797	$ 2,247,047	$ 2,569,495
Nu Skin [Member]
Revenue by Product Line [Abstract]
Revenue	1,308,135	1,363,539	1,562,595
Pharmanex [Member]
Revenue by Product Line [Abstract]
Revenue	892,738	877,924	1,000,279
Other [Member]
Revenue by Product Line [Abstract]
Revenue	$ 6,924	$ 5,584	$ 6,621

Segment Information, Significan

Segment Information, Significant Geographical Areas and Long Lived Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue by Geographical Area and Long-Lived Assets [Abstract]
Revenue	$ 2,207,797	$ 2,247,047	$ 2,569,495
Significant Geographic Area [Member]
Revenue by Geographical Area and Long-Lived Assets [Abstract]
Revenue	2,207,797	2,247,047	2,569,495
Significant Geographic Area [Member] | Mainland China [Member]
Revenue by Geographical Area and Long-Lived Assets [Abstract]
Revenue	610,414	565,527	675,082
Long-lived assets	97,867	110,839
Significant Geographic Area [Member] | South Korea [Member]
Revenue by Geographical Area and Long-Lived Assets [Abstract]
Revenue	413,696	422,341	467,720
Long-lived assets	41,545	48,702
Significant Geographic Area [Member] | Japan [Member]
Revenue by Geographical Area and Long-Lived Assets [Abstract]
Revenue	279,042	264,214	315,265
Long-lived assets	11,517	13,587
Significant Geographic Area [Member] | United States [Member]
Revenue by Geographical Area and Long-Lived Assets [Abstract]
Revenue	201,239	243,748	230,767
Long-lived assets	283,868	271,057
Significant Geographic Area [Member] | Europe [Member]
Revenue by Geographical Area and Long-Lived Assets [Abstract]
Revenue	$ 147,318	$ 137,186	$ 180,572

Dividends per Share (Details)

Dividends per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Dividends per Share [Abstract]
Payment of cash dividends									$ 78,438	$ 81,187	$ 81,371
Dividend Declared 2015-Q1 [Member]
Dividends per Share [Abstract]
Cash dividend paid (in dollars per share)								$ 0.35
Dividend Declared 2015-Q2 [Member]
Dividends per Share [Abstract]
Cash dividend paid (in dollars per share)							$ 0.35
Dividend Declared 2015-Q3 [Member]
Dividends per Share [Abstract]
Cash dividend paid (in dollars per share)						$ 0.35
Dividend Declared 2015-Q4 [Member]
Dividends per Share [Abstract]
Cash dividend paid (in dollars per share)					$ 0.35
Dividend Declared 2016-Q1 [Member]
Dividends per Share [Abstract]
Cash dividend paid (in dollars per share)				$ 0.355
Dividend Declared 2016-Q2 [Member]
Dividends per Share [Abstract]
Cash dividend paid (in dollars per share)			$ 0.355
Dividend Declared 2016-Q3 [Member]
Dividends per Share [Abstract]
Cash dividend paid (in dollars per share)		$ 0.355
Dividend Declared 2016-Q4 [Member]
Dividends per Share [Abstract]
Cash dividend paid (in dollars per share)	$ 0.355
Dividend Declared 2017-Q1 [Member]
Dividends per Share [Abstract]
Dividend payable per share (in dollars per share)	$ 0.36								$ 0.36
Dividend payable, date to be paid									Mar. 15, 2017
Dividend payable, date of record									Feb. 27, 2017

Other Income (Expense), Net (De

Other Income (Expense), Net (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Income (Expense), Net [Abstract]
Other income (expense), net		$ (18,265)	$ (32,743)	$ (53,681)
Foreign currency transaction losses on net monetary assets denominated in bolivar			10,200	46,300
Expense related to prepayment of debt	$ 7,400
Foreign currency translation expenses			17,000
Interest expense		$ 15,600	$ 7,900	$ 5,700

Cost of Sales (Details)

Cost of Sales (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cost of Sales [Abstract]
Customs expense	$ 31,400	$ 31,355	$ 0	$ 0

Acquisition (Details)

Acquisition (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Acquisition [Abstract]
Cash paid for acquisition		$ 8,692	$ 0	$ 0
Goodwill		$ 114,954	$ 112,446
Vertical Eden, LLC [Member]
Acquisition [Abstract]
Percentage of entity acquired	70.00%
Cash paid for acquisition	$ 3,300
Contingent consideration	1,500
Intangible assets	4,400
Goodwill	2,500
Non-controlling interest	$ 2,100
Vertical Eden, LLC [Member] | Minimum [Member]
Acquisition [Abstract]
Useful life		3 years
Vertical Eden, LLC [Member] | Maximum [Member]
Acquisition [Abstract]
Useful life		7 years