WW International (WW) 10-Q 8 Aug 17 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares shares in Thousands	6 Months Ended
	Jul. 01, 2017	Jul. 26, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 1, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Trading Symbol	WTW
Entity Registrant Name	WEIGHT WATCHERS INTERNATIONAL INC
Entity Central Index Key	105,319
Current Fiscal Year End Date	--12-30
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		64,391,084

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jul. 01, 2017	Dec. 31, 2016
CURRENT ASSETS
Cash and cash equivalents	$ 104,485	$ 108,656
Receivables (net of allowances: July 1, 2017 - $2,029 and December 31, 2016 - $2,973)	25,221	27,518
Inventories	22,948	32,629
Prepaid income taxes	38,706	35,528
Prepaid expenses and other current assets	23,497	30,880
TOTAL CURRENT ASSETS	214,857	235,211
Property and equipment, net	47,832	49,574
Franchise rights acquired	752,169	748,619
Goodwill	167,912	166,138
Trademarks and other intangible assets, net	51,899	58,612
Other noncurrent assets	12,651	12,822
TOTAL ASSETS	1,247,320	1,270,976
CURRENT LIABILITIES
Portion of long-term debt due within one year	20,213	21,000
Accounts payable	20,190	40,639
Salaries and wages payable	47,792	49,638
Accrued marketing and advertising	7,321	18,067
Accrued interest	15,618	16,939
Other accrued liabilities	49,389	51,251
Derivative payable	25,702	31,974
Deferred revenue	86,597	62,880
TOTAL CURRENT LIABILITIES	272,822	292,388
Long-term debt	1,899,699	1,981,299
Deferred income taxes	188,638	175,115
Other	24,818	25,048
TOTAL LIABILITIES	2,385,977	2,473,850
Redeemable noncontrolling interest	4,575	4,699
TOTAL DEFICIT
Common stock, $0 par value; 1,000,000 shares authorized; 118,947 shares issued at July 1, 2017 and at December 31, 2016	0	0
Treasury stock, at cost, 54,568 shares at July 1, 2017 and 55,021 shares at December 31, 2016	(3,220,433)	(3,237,346)
Retained earnings	2,097,931	2,056,893
Accumulated other comprehensive loss	(20,730)	(27,120)
TOTAL DEFICIT	(1,143,232)	(1,207,573)
TOTAL LIABILITIES AND TOTAL DEFICIT	$ 1,247,320	$ 1,270,976

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jul. 01, 2017	Dec. 31, 2016
Statement Of Financial Position [Abstract]
Receivables, allowances	$ 2,029	$ 2,973
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	118,947,000	118,947,000
Treasury stock, shares	54,568,000	55,021,000

CONSOLIDATED STATEMENTS OF NET

CONSOLIDATED STATEMENTS OF NET INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Income Statement [Abstract]
Service revenues, net	$ 283,001	$ 251,550	$ 544,477	$ 495,318
Product sales and other, net	58,672	58,211	126,259	121,353
Revenues, net	341,673	309,761	670,736	616,671
Cost of services	120,325	119,758	245,210	244,430
Cost of product sales and other	32,335	28,955	72,416	61,520
Cost of revenues	152,660	148,713	317,626	305,950
Gross profit	189,013	161,048	353,110	310,721
Marketing expenses	41,968	41,199	128,397	127,714
Selling, general and administrative expenses	50,839	46,118	98,273	95,720
Operating income	96,206	73,731	126,440	87,287
Interest expense	27,092	28,609	55,234	58,634
Other (income) expense, net	(488)	607	154	542
Gain on early extinguishment of debt	(1,554)	0	(1,554)	0
Income before income taxes	71,156	44,515	72,606	28,111
Provision for income taxes	25,992	14,034	16,864	8,431
Net income	45,164	30,481	55,742	19,680
Net loss attributable to the noncontrolling interest	9	13	83	61
Net income attributable to Weight Watchers International, Inc.	$ 45,173	$ 30,494	$ 55,825	$ 19,741
Earnings Per Share attributable to Weight Watchers International, Inc.
Basic	$ 0.70	$ 0.48	$ 0.87	$ 0.31
Diluted	$ 0.67	$ 0.46	$ 0.83	$ 0.30
Weighted average common shares outstanding
Basic	64,269	63,740	64,124	63,644
Diluted	67,737	65,934	67,304	65,890

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017		Jul. 02, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 45,164	$ 30,481	$ 55,742		$ 19,680
Other comprehensive gain (loss):
Foreign currency translation gain	2,630	1,742	6,031		11,661
Income tax expense on foreign currency translation gain	(1,026)	(680)	(2,352)		(4,518)
Foreign currency translation gain, net of taxes	1,604	1,062	3,679		7,143
(Loss) gain on derivatives	(1,136)	(3,849)	4,377		(18,117)
Income tax benefit (expense) on (loss) gain on derivatives	443	1,501	(1,707)		7,036
(Loss) gain on derivatives, net of taxes	(693)	(2,348)	2,670		(11,081)
Total other comprehensive gain (loss)	911	(1,286)	6,349	[1]	(3,938)	[1]
Comprehensive income	46,075	29,195	62,091		15,742
Less: Net loss attributable to the noncontrolling interest	9	13	83		61
Less: Foreign currency translation loss (gain), net of taxes attributable to the noncontrolling interest	146	(228)	41		(470)
Comprehensive loss (income) attributable to the noncontrolling interest	155	(215)	124		(409)
Comprehensive income attributable to Weight Watchers International, Inc.	$ 46,230	$ 28,980	$ 62,215		$ 15,333
[1]	Amounts in parentheses indicate debits

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
Operating activities:
Net income	$ 55,742	$ 19,680
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	25,554	25,777
Amortization of deferred financing costs	2,861	3,146
Impairment of intangible and long-lived assets	60	93
Write-off of net assets due to cessation of Spain operations	70	0
Share-based compensation expense	4,817	4,947
Deferred tax provision	10,331	784
Allowance for doubtful accounts	(857)	(471)
Reserve for inventory obsolescence	4,962	2,496
Foreign currency exchange rate loss	150	445
Gain on early extinguishment of debt	(1,802)	0
Changes in cash due to:
Receivables	3,490	(155)
Inventories	5,887	(3,296)
Prepaid expenses	4,338	8,919
Accounts payable	(19,727)	(7,080)
Accrued liabilities	(28,575)	(22,747)
Deferred revenue	21,847	12,921
Other long term assets and liabilities, net	144	(498)
Income taxes	8,823	1,405
Cash provided by operating activities	98,115	46,366
Investing activities:
Capital expenditures	(5,614)	(1,693)
Capitalized software expenditures	(13,419)	(15,185)
Cash paid for acquisitions	0	(2,898)
Other items, net	(86)	(88)
Cash used for investing activities	(19,119)	(19,864)
Financing activities:
Payments on long-term debt	(83,334)	(154,823)
Taxes paid related to net share settlement of equity awards	(3,648)	0
Excess tax benefit of share-based compensation	0	945
Proceeds from stock options exercised	1,258	10
Payment of dividends	0	(10)
Cash used for financing activities	(85,724)	(153,878)
Effect of exchange rate changes on cash and cash equivalents	2,557	348
Net decrease in cash and cash equivalents	(4,171)	(127,028)
Cash and cash equivalents, beginning of period	108,656	241,526
Cash and cash equivalents, end of period	$ 104,485	$ 114,498

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jul. 01, 2017
Accounting Policies [Abstract]
Basis of Presentation	1. The accompanying consolidated financial statements include the accounts of Weight Watchers International, Inc. and all of its subsidiaries. The terms “Company” and “WWI” as used throughout these notes is used to indicate Weight Watchers International, Inc. and all of its operations consolidated for purposes of its financial statements. The Company’s “meetings” business refers to providing access to meetings to the Company’s monthly commitment plan subscribers, “pay-as-you-go” members, Total Access subscribers and other meetings members. “Online” refers to Weight Watchers Online, Weight Watchers Online Plus The consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and include amounts that are based on management’s best estimates and judgments. While all available information has been considered, actual amounts could differ from those estimates. The consolidated financial statements include all of the Company’s majority-owned subsidiaries. All entities acquired, and any entity of which a majority interest was acquired, are included in the consolidated financial statements from the date of acquisition. All intercompany accounts and transactions have been eliminated in consolidation. The Company’s operating results for any interim period are not necessarily indicative of future or annual results. The consolidated financial statements are unaudited and, accordingly, they do not include all of the information necessary for a comprehensive presentation of results of operations, financial position and cash flow activity required by GAAP for complete financial statements but, in the opinion of management, reflect all adjustments including those of a normal recurring nature necessary for a fair statement of the interim results presented. These statements should be read in conjunction with the Company’s Annual Report on Form 10-K for fiscal 2016 filed on March 1, 2017, which includes additional information about the Company, its results of operations, its financial position and its cash flows.

Recently Issued Accounting Stan

Recently Issued Accounting Standards	6 Months Ended
	Jul. 01, 2017
Accounting Changes And Error Corrections [Abstract]
Recently Issued Accounting Standards	2. In February 2016, the Financial Accounting Standards Board (the “FASB”) issued updated guidance regarding leases, requiring lessees to recognize a right-of-use asset and a lease liability on the balance sheet for all leases with the exception of short-term leases. For lessees, leases will continue to be classified as either operating or finance leases in the income statement. Lessor accounting is similar to the current model but will be updated to align with certain changes to the lessee model. Lessors will continue to classify leases as operating, direct financing or sales-type leases. The effective date of the new guidance for public companies is for fiscal years beginning after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted. The new guidance must be adopted using a modified retrospective transition and requires application of the new guidance at the beginning of the earliest comparative period presented. The updated guidance is effective for the Company beginning in the first quarter of fiscal 2019. The Company is currently evaluating the impact that the adoption of this guidance will have on the consolidated financial statements and related disclosures of the Company. In March 2016, the FASB issued updated guidance on revenue from contracts with customers, which is intended to clarify the implementation guidance on principal versus agent considerations. The amendments in this update do not change the core principle of the guidance, but are intended to improve the operability and understandability of the implementation guidance on principal versus agent considerations by including indicators to assist an entity in determining whether it controls a specified good or service before it is transferred to the customer. In April 2016, the FASB issued updated guidance on revenue from contracts with customers, which is intended to clarify guidance related to identifying performance obligations and licensing implementation guidance contained in the new revenue recognition standard. In May 2016, the FASB issued updated guidance on revenue from contracts with customers, which is intended to provide narrow scope guidance and practical expedients contained in the new revenue standard. In December 2016, the FASB issued updated guidance on revenue from contracts with customers for technical corrections and improvements on narrow aspects within the original and amended guidance. The amendments in these updates are effective for annual periods beginning after December 15, 2017 and interim periods within those fiscal years, with early adoption permitted. The Company is in the process of evaluating the effect of adoption on the consolidated financial statements. The Company has developed an inventory of all revenue streams and has begun to assess the implications of adopting the new five step revenue model and reviewing key contracts. In January 2017, the FASB issued amended guidance to simplify the accounting for goodwill impairment. This guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. Under the amended guidance, a goodwill impairment charge will now be recognized for the amount by which the carrying value of a reporting unit exceeds its fair value, not to exceed the carrying amount of goodwill. This guidance is effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted for any impairment tests performed after January 1, 2017. The Company is currently evaluating the impact that the adoption of this guidance will have on the consolidated financial statements and related disclosures of the Company. For a discussion of the Company’s other significant accounting policies, see “Summary of Significant Accounting Policies” in the Notes to Consolidated Financial Statements of the Company’s Annual Report on Form 10-K for fiscal 2016. For a discussion of accounting standards adopted in the current year, see Note 3.

Accounting Standards Adopted in

Accounting Standards Adopted in Current Year	6 Months Ended
	Jul. 01, 2017
Accounting Changes And Error Corrections [Abstract]
Accounting Standards Adopted in Current Year	3. In March 2016, the FASB issued updated guidance on stock compensation which is intended to simplify several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification of applicable income tax consequences on the statement of cash flows. This guidance requires recognition of excess tax benefits and shortfalls (resulting from an increase or decrease in the fair value of an award from grant date to the vesting date) in the provision for income taxes as a discrete item in the quarterly period in which they occur. In addition, these amounts will be classified as an operating activity in the consolidated statement of cash flows instead of as a financing activity. The amendments requiring recognition of excess tax benefits and tax shortfalls in the income statement must be applied prospectively (See Note 10), and entities may elect to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using either a prospective or retrospective transition method. In May 2017, the FASB issued updated guidance on stock compensation which is intended to clarify when changes to the terms and conditions to a share-based payment transaction requires modification accounting. The company adopted this guidance during the first quarter of fiscal 2017. As required by the standard, the Company recognized prospectively any excess tax benefits in the consolidated statements of net income for the three and six months ended July 1, 2017 and applied the amendments relating to the presentation of excess tax benefits on the statement of cash flows using the prospective method. For the first six months ended July 2, 2016, the Company recorded $649 of excess tax benefits in equity. For the first six months ended July 2, 2016, the Company paid taxes of $1,875 related to net share settlement of equity awards. As permitted under the guidance, the Company will continue to account for forfeitures in compensation cost by estimating the number of awards that are expected to vest. In August 2016, the FASB issued updated guidance on the statement of cash flows presentation of certain transactions where diversity in practice exists. The Company adopted this guidance during the first quarter of 2017, which had no impact on the consolidated statement of cash flows. In January 2017, the FASB issued updated guidance to assist Companies with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The Company early adopted this guidance during the first quarter of 2017. The adoption of this guidance had no impact on the consolidated financial statements.

Winfrey Transaction

Winfrey Transaction	6 Months Ended
	Jul. 01, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Winfrey Transaction	4. On October 18, 2015 (the “Agreement Date”), the Company entered into the following agreements with Oprah Winfrey: the Strategic Collaboration Agreement, the Winfrey Purchase Agreement (defined below), and the Winfrey Option Agreement (defined below). The transactions contemplated by these agreements are collectively referred to herein as the “Winfrey Transaction”. Details of the Strategic Collaboration Agreement, Winfrey Purchase Agreement and Winfrey Option Agreement are below. See Note 16 for related party transactions with Ms. Winfrey. Strategic Collaboration Agreement The Company and Ms. Winfrey granted each other certain intellectual property rights under the Strategic Collaboration Agreement. The agreement has an initial term of five years, with additional successive one-year renewal terms. During the term of this agreement, Ms. Winfrey will consult with the Company and participate in developing, planning, executing and enhancing the Weight Watchers program and related initiatives, and provide it with services in her discretion to promote the Company and its programs, products and services. Winfrey Purchase Agreement On October 19, 2015, pursuant to the Share Purchase Agreement between the Company and Ms. Winfrey (the “Winfrey Purchase Agreement”), the Company issued and sold to Ms. Winfrey an aggregate of 6,362 shares of the Company’s common stock (the “Purchased Shares”) at a price per share of $6.79 for an aggregate cash purchase price of $43,199. The Company recorded fees related to the issuance of the Purchased Shares totaling $2,315, of which $1,700 was recorded as a reduction of equity in the fourth quarter of fiscal 2015. The Purchased Shares are subject to certain demand registration rights and piggyback rights held by Ms. Winfrey under the Winfrey Purchase Agreement. The Purchased Shares may not be transferred by Ms. Winfrey within the first two years of the Agreement Date, subject to certain limited exceptions. Thereafter, Ms. Winfrey may generally transfer up to 15% of the Purchased Shares prior to the third anniversary of the Agreement Date, up to 30% prior to the fourth anniversary of the Agreement Date and up to 60% prior to the fifth anniversary of the Agreement Date. On or after the fifth anniversary of the Agreement Date, Ms. Winfrey will be permitted to transfer all of the Purchased Shares. In the event that Ms. Winfrey proposes to transfer any Purchased Shares or Winfrey Option Shares (defined below), the Company will have (a) a right of first offer with respect to such shares if such transfer is (i) for 1% or more of the Company’s issued and outstanding common stock and is proposed to be made pursuant to Rule 144 under the Securities Act of 1933, as amended or (ii) proposed to be sold under a resale shelf registration statement or (b) a right of first refusal with respect to such shares if such transfer is (i) for 1% or more of the Company’s issued and outstanding common stock and is proposed to be made to a competitor of the Company or (ii) for 5% or more of the Company’s issued and outstanding common stock. Such transfer restrictions, right of first offer and right of first refusal terminate if Ms. Winfrey then has the right to be nominated as a director and has met certain eligibility requirements under the Winfrey Purchase Agreement, but is not elected as a director of the Company. If Ms. Winfrey is elected as a director of the Company, she shall receive compensation for her services as a director consistent with that of other non-executive directors of the Company. Such transfer restrictions also terminate if there is a change of control, including if another person (or group), other than Artal Luxembourg S.A. and Ms. Winfrey and their respective affiliates, acquires more than 50% of the total voting power of the Company. Winfrey Option Agreement In consideration of Ms. Winfrey entering into the Strategic Collaboration Agreement and the performance of her obligations thereunder, on the Agreement Date, the Company granted Ms. Winfrey a fully vested option (the “Winfrey Option”) to purchase 3,513 shares of common stock at an exercise price of $6.97 per share, which remains outstanding in full. The term sheet, and related terms and conditions, for the Winfrey Option are referred to herein as the “Winfrey Option Agreement”. Based on the Black Scholes option pricing method, the Company recorded $12,759 of compensation expense in the fourth quarter of fiscal 2015 for the Winfrey Option. At the date of the grant, the Company used a dividend yield of 0.0%, 63.88% volatility and a risk-free interest rate of 1.36%. Compensation expense is included as a component of selling, general and administrative expenses. Subject to certain limited exceptions, shares of common stock issuable upon exercise of the Winfrey Option (the “Winfrey Option Shares”) generally could not be transferred by Ms. Winfrey within the first year of the Agreement Date. Ms. Winfrey generally may transfer up to 20% of the Winfrey Option Shares prior to the second anniversary of the Agreement Date, up to 40% prior to the third anniversary of the Agreement Date, up to 60% prior to the fourth anniversary of the Agreement Date and up to 80% prior to the fifth anniversary of the Agreement Date. On or after the fifth anniversary of the Agreement Date, Ms. Winfrey will be permitted to transfer all of the Winfrey Option Shares. Pursuant to the Winfrey Purchase Agreement, in the event that Ms. Winfrey proposes to transfer any Winfrey Option Shares, the Company will have a right of first offer or a right of first refusal with respect to such shares as described above. Such transfer restrictions terminate under the same director service and change of control circumstances that would result in the termination of the transfer restrictions relating to the Purchased Shares as described above.

Acquisition of Franchisee

Acquisition of Franchisee	6 Months Ended
	Jul. 01, 2017
Business Combinations [Abstract]
Acquisition of Franchisee	5. On June 27, 2016, the Company acquired substantially all of the assets of its franchisee for certain territories in South Florida, Weight Watchers of Greater Miami, Inc., for a purchase price of $3,250 (the “Miami Acquisition”). Payment was in the form of cash ($2,898) plus cash in reserves ($300) and assumed net liabilities of ($52). The total purchase price has been allocated to franchise rights acquired ($114), goodwill ($2,945) and customer relationship value ($191). The acquisition of the franchisee has been accounted for under the purchase method of accounting and, accordingly, earnings of the acquired franchisee have been included in the consolidated operating results of the Company since the date of acquisition. The goodwill will be deductible for tax purposes.

Franchise Rights Acquired, Good

Franchise Rights Acquired, Goodwill and Other Intangible Assets	6 Months Ended
	Jul. 01, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Franchise Rights Acquired, Goodwill and Other Intangible Assets	6. Franchise rights acquired are due to acquisitions of the Company’s franchised territories as well as the acquisition of franchise promotion agreements and other factors associated with the acquired franchise territories. For the six months ended July 1, 2017, the change in the carrying value of franchise rights acquired is due to the effect of exchange rate changes. Goodwill primarily relates to the acquisition of the Company by H.J. Heinz Company in 1978, the acquisition of WeightWatchers.com, Inc. in 2005, the acquisitions of the Company’s franchised territories, the acquisitions of the majority interest in Vigilantes do Peso Marketing Ltda. (“VPM”) and of Knowplicity, Inc., d/b/a Wello, in fiscal 2014 and the acquisition of Weilos, Inc. in fiscal 2015. See Note 5 for additional information about acquisitions by the Company. For the six months ended July 1, 2017, the change in the carrying amount of goodwill is due to the effect of exchange rate changes as follows: North United Continental America Kingdom Europe Other Total Balance as of December 31, 2016 $ 137,543 $ 1,145 $ 6,884 $ 20,566 $ 166,138 Effect of exchange rate changes 1,554 63 573 (416 ) 1,774 Balance as of July 1, 2017 $ 139,097 $ 1,208 $ 7,457 $ 20,150 $ 167,912 The Company reviews goodwill and other indefinite-lived intangible assets, including franchise rights acquired with indefinite lives, for potential impairment on at least an annual basis or more often if events so require. The Company performed fair value impairment testing as of May 7, 2017 and May 8, 2016, each the first day of fiscal May, on its goodwill and other indefinite-lived intangible assets. In performing its annual impairment analysis as of May 7, 2017, the Company determined that the carrying amounts of its goodwill reporting units and franchise rights acquired with indefinite lives units of account did not exceed their respective fair values and therefore, no impairment existed. For all reporting units, except for Brazil, there was significant headroom in the impairment analysis. Based on the results of this test for Brazil, the fair value of this reporting unit exceeded its carrying value by approximately 10%, and accordingly a relatively small change in the underlying assumptions would likely cause a change in the results of the impairment assessment and, as such, could result in an impairment of the goodwill related to Brazil, for which the carrying amount is $19,295. When determining fair value, the Company utilizes various assumptions, including projections of future cash flows, growth rates and discount rates. A change in these underlying assumptions would cause a change in the results of the tests and, as such, could cause fair value to be less than the carrying amounts and result in an impairment of those assets. In the event such a result occurred, the Company would be required to record a corresponding charge, which would impact earnings. The Company would also be required to reduce the carrying amounts of the related assets on its balance sheet. The Company continues to evaluate these assumptions and believes that these assumptions are appropriate. The following is a discussion of the goodwill and franchise rights acquired impairment analysis. Goodwill In performing the impairment analysis for goodwill, the fair value for the Company’s reporting units is estimated using a discounted cash flow approach. This approach involves projecting future cash flows attributable to the reporting unit and discounting those estimated cash flows using an appropriate discount rate. The estimated fair value is then compared to the carrying value of the reporting units. The Company has determined the appropriate reporting unit for purposes of assessing annual impairment to be the country for all reporting units. For all of the Company’s reporting units except for Brazil (see below), the Company estimated future cash flows by utilizing the historical debt-free cash flows (cash flows provided by operating activities less capital expenditures) attributable to that country and then applied expected future operating income growth rates for such country. The Company utilized operating income as the basis for measuring its potential growth because it believes it is the best indicator of the performance of its business. The Company then discounted the estimated future cash flows utilizing a discount rate which was calculated using the average cost of capital, which included the cost of equity and the cost of debt. The cost of equity was determined by combining a risk-free rate of return and a market risk premium for the Company’s peer group. The risk-free rate of return was determined based on the average rate of long-term U.S. Treasury securities. The market risk premium was determined by reviewing external market data. The cost of debt was determined by estimating the Company’s current borrowing rate. As it relates to the impairment analysis for Brazil, the Company estimated future debt free cash flows in contemplation of its growth strategies for that market. In developing these projections, the Company considered the historical impact of similar growth strategies in other markets as well as the current market conditions in Brazil. The Company then discounted the estimated future cash flows utilizing a discount rate which was calculated using the average cost of capital, which included the cost of equity and the cost of debt. The cost of equity was determined by combining a risk-free rate of return and a market risk premium for the Company’s peer group. The risk-free rate of return was determined based on the average rate of long-term U.S. Treasury securities. The market risk premium was determined by reviewing external market data including the current economic conditions in Brazil and the country specific risk thereon. A further risk premium was included to reflect the risk associated with the rate of growth projected in the analysis. The cost of debt was determined by estimating the Company’s current borrowing rate. Franchise Rights Acquired Finite-lived franchise rights acquired are amortized over the remaining contractual period, which is generally less than one year. In performing the impairment analysis for indefinite-lived franchise rights acquired, the fair value for franchise rights acquired is estimated using a discounted cash flow approach referred to as the hypothetical start-up approach for franchise rights related to the Company’s meetings business and a relief from royalty methodology for franchise rights related to the Company’s Online business. The aggregate estimated fair value for these rights is then compared to the carrying value of the unit of account for those franchise rights. The Company has determined the appropriate unit of account for purposes of assessing impairment to be the combination of the rights in the meetings and Online businesses in the country in which the acquisitions have occurred. In its hypothetical start-up approach analysis for fiscal 2017, the Company assumed that the year of maturity was reached after 7 years. Subsequent to the year of maturity, the Company estimated future cash flows for the meetings business in each country based on assumptions regarding revenue growth and operating income margins. The cash flows associated with the Online business were based on the expected Online revenue for such country and the application of a market-based royalty rate. The cash flows for the meetings and Online businesses were discounted utilizing rates consistent with those utilized in the goodwill impairment analysis. The carrying values of finite-lived intangible assets as of July 1, 2017 and December 31, 2016 were as follows: July 1, 2017 December 31, 2016 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization Capitalized software costs $ 130,789 $ 110,338 $ 126,737 $ 101,316 Website development costs 128,808 98,145 119,971 87,736 Trademarks 11,145 10,745 11,092 10,647 Other 8,030 7,645 7,945 7,434 Trademarks and other intangible assets $ 278,772 $ 226,873 $ 265,745 $ 207,133 Franchise rights acquired 4,528 4,528 4,551 4,551 Total finite-lived intangible assets $ 283,300 $ 231,401 $ 270,296 $ 211,684 Aggregate amortization expense for finite-lived intangible assets was recorded in the amounts of $9,015 and $18,190 for the three and six months ended July 1, 2017, respectively. Aggregate amortization expense for finite-lived intangible assets was recorded in the amounts of $8,603 and $17,023 for the three and six months ended July 2, 2016, respectively. The franchise rights acquired related to the VPM acquisition were amortized ratably over a 2 year period. The franchise rights acquired related to the Miami Acquisition were amortized ratably over a 3 month period. Estimated amortization expense of existing finite-lived intangible assets for the next five fiscal years and thereafter is as follows: Remainder of fiscal 2017 $ 17,528 Fiscal 2018 $ 21,364 Fiscal 2019 $ 10,195 Fiscal 2020 $ 2,420 Fiscal 2021 and thereafter $ 392

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jul. 01, 2017
Debt Disclosure [Abstract]
Long-Term Debt	7. The components of the Company’s long-term debt were as follows: July 1, 2017 December 31, 2016 Principal Balance Effective Rate (1) Principal Balance Effective Rate (1) Revolving Facility due April 2, 2018 $ 0 0.00 % $ 0 3.35 % Tranche B-1 Term Facility due April 2, 2016 0 0.00 % 0 3.96 % Tranche B-2 Term Facility due April 2, 2020 1,935,440 4.64 % 2,021,250 4.41 % Total 1,935,440 4.64 % 2,021,250 4.38 % Less: Current Portion 20,213 21,000 Unamortized Deferred Financing Costs 15,528 18,951 Total Long-Term Debt $ 1,899,699 $ 1,981,299 (1) Includes amortization of deferred financing costs. For fiscal 2016, the effective interest rate for the Revolving Facility and Tranche B-1 Term Facility was computed based on interest expense incurred over the period for which borrowings were outstanding. The Company’s credit facilities at the end of the first quarter of fiscal 2013 consisted of the following term loan facilities and revolving credit facilities: a tranche B loan (“Term B Loan”), a tranche C loan (“Term C Loan”), a tranche D loan (“Term D Loan”), a tranche E loan (“Term E Loan”), a tranche F loan (“Term F Loan”), revolving credit facility A-1 (“Revolver A-1” ) and revolving credit facility A-2 (“Revolver A-2”). On April 2, 2013, the Company refinanced its credit facilities pursuant to a new Credit Agreement (as amended, supplemented or otherwise modified, the “Credit Agreement”) among the Company, the lenders party thereto, JPMorgan Chase Bank, N.A., as administrative agent and an issuing bank, The Bank of Nova Scotia, as revolving agent, swingline lender and an issuing bank, and the other parties thereto. The Credit Agreement provides for (a) a revolving credit facility (including swing line loans and letters of credit) in an initial aggregate principal amount of $250,000 that will mature on April 2, 2018 (the “Revolving Facility”), (b) an initial term B-1 loan credit facility in an aggregate principal amount of $300,000 that matured on April 2, 2016 (the “Tranche B-1 Term Facility”) and (c) an initial term B-2 loan credit facility in an aggregate principal amount of $2,100,000 that will mature on April 2, 2020 (the “Tranche B-2 Term Facility”, and together with the Tranche B-1 Term Facility, the “Term Facilities”; the Term Facilities and Revolving Facility collectively, the “WWI Credit Facility”). In connection with this refinancing, the Company used the proceeds from borrowings under the Term Facilities to pay off a total of $2,399,904 of outstanding loans, consisting of $128,759 of Term B Loans, $110,602 of Term C Loans, $117,612 of Term D Loans, $1,125,044 of Term E Loans, $817,887 of Term F Loans, $21,247 of loans under the Revolver A-1 and $78,753 of loans under the Revolver A-2. Following the refinancing of a total of $2,399,904 of loans, at April 2, 2013, the Company had $2,400,000 debt outstanding under the Term Facilities and $248,848 of availability under the Revolving Facility. The Company incurred fees of $44,817 during the second quarter of fiscal 2013 in connection with this refinancing. In the second quarter of fiscal 2013, the Company wrote-off fees associated with this refinancing which resulted in the Company recording a charge of $21,685 in early extinguishment of debt. On September 26, 2014, the Company and certain lenders entered into an agreement amending the Credit Agreement that, among other things, eliminated the Financial Covenant (as defined in the Credit Agreement) with respect to the Revolving Facility. In connection with this amendment, the Company wrote-off deferred financing fees of approximately $1,583 in the third quarter of fiscal 2014. Concurrently with and in order to effect this amendment, the Company reduced the amount of the Revolving Facility from $250,000 to $50,000. Under the terms of the Credit Agreement, depending on the Company’s Consolidated Leverage Ratio (as defined in the Credit Agreement), on an annual basis on or about the time the Company is required to deliver its financial statements for any fiscal year, the Company is obligated to offer to prepay a portion of the outstanding principal amount of the Term Facilities in an aggregate amount determined by a percentage of its annual excess cash flow (as defined in the Credit Agreement). On March 13, 2015, the Company commenced an offer to prepay at a discount to par up to $75,000 in aggregate principal amount of term loans outstanding under the Tranche B-1 Term Facility. On March 20, 2015, the Company accepted offers with a discount equal to or greater than 9.00% in respect of such term loans. On March 25, 2015, the Company paid an aggregate amount of cash proceeds totaling $57,389 plus an amount sufficient to pay accrued and unpaid interest on the amount prepaid to prepay $63,065 in aggregate principal amount of such term loans under the Tranche B-1 Term Facility. This expenditure reduced, on a dollar for dollar basis, the Company’s $59,728 obligation to make a mandatory excess cash flow prepayment offer to the term loan lenders under the terms of the Credit Agreement. In addition, the Company made a voluntary prepayment at par on March 25, 2015 of $2,500 in respect of such term loans under the Tranche B-1 Term Facility to reduce the remaining excess cash flow prepayment obligation for fiscal 2014. As a result of this prepayment, the Company wrote-off fees of $326, incurred fees of $601 and recorded a gain on early extinguishment of debt of $4,749, inclusive of these fees, in the first quarter of fiscal 2015. On June 17, 2015, the Company commenced another offer to prepay at a discount to par up to $229,000 in aggregate principal amount of term loans outstanding under the Tranche B-1 Term Facility. On June 22, 2015, the Company accepted offers with a discount equal to or greater than 9.00% in respect of such term loans. On June 26, 2015, the Company paid an aggregate amount of cash proceeds totaling $77,225 plus an amount sufficient to pay accrued and unpaid interest on the amount prepaid to prepay $84,862 in aggregate principal amount of such term loans under the Tranche B-1 Term Facility. As a result of this prepayment, the Company wrote-off fees of $321, incurred fees of $641 and recorded a gain on early extinguishment of debt of $6,677, inclusive of these fees, in the second quarter of fiscal 2015. On July 14, 2015, the Company drew down the $48,000 available on its Revolving Facility in order to enhance its cash position and to provide additional financial flexibility. As of January 2, 2016, the revolver borrowing was classified as a short-term liability in consideration of the fact that the terms of the Revolving Facility require an assessment as to whether there have been any material adverse changes with respect to the Company in connection with the Company’s monthly interest elections. Although the revolver borrowing was classified as a short-term liability as of January 2, 2016, absent any change in fact and circumstance, the Company had, and continues to have, the ability to extend and not repay the Revolving Facility until its due date of April 2, 2018. On April 1, 2016, the Company paid in full, with cash on hand, a principal amount of term loans equal to $144,323, which constituted the entire remaining principal amount of term loans outstanding under the Tranche B-1 Term Facility due April 2, 2016. On July 29, 2016, the Company paid down, with cash on hand, a principal amount of $25,000 of the $48,000 outstanding under its Revolving Facility. On September 16, 2016, the Company paid down, with cash on hand, the remaining outstanding principal amount of $23,000 on its Revolving Facility. On May 18, 2017, the Company commenced another offer to prepay at a discount to par up to $75,000 in aggregate principal amount of term loans outstanding under the Tranche B-2 Term Facility. On May 24, 2017, the Company accepted offers with a discount equal to or greater than 3.28% in respect of such term loans. On May 25, 2017, $73,030 plus an amount sufficient to pay accrued and unpaid interest on the amount prepaid to prepay $75,507 in aggregate principal amount of such term loans under the Tranche B-2 Term Facility At July 1, 2017 under the WWI Credit Facility, the Company had $1,935,440 outstanding consisting entirely of a term loan under the Tranche B-2 Term Facility. At July 1, 2017, the Revolving Facility had $0 outstanding, $1,819 in issued but undrawn letters of credit outstanding thereunder and $48,181 in available unused commitments thereunder. The proceeds from borrowings under the Revolving Facility (including swing line loans and letters of credit) are available to be used for working capital and general corporate purposes. Borrowings under the Credit Agreement bear interest at a rate equal to, at the Company’s option, LIBOR plus an applicable margin or a base rate plus an applicable margin. LIBOR under the Tranche B-2 Term Facility is subject to a minimum interest rate of 0.75% and the base rate under the Tranche B-2 Term Facility is subject to a minimum interest rate of 1.75%. Under the terms of the Credit Agreement, in the event the Company receives a corporate rating of BB- (or lower) from S&P and a corporate rating of Ba3 (or lower) from Moody’s, the applicable margin relating to the Term Facilities would increase by 25 basis points. On February 21, 2014, both S&P and Moody’s issued revised corporate ratings of the Company of B+ and B1, respectively. As a result, effective February 21, 2014, the applicable margin on borrowings under the Tranche B-1 Term Facility went from 2.75% to 3.00% and on borrowings under the Tranche B-2 Term Facility went from 3.00% to 3.25%. The applicable margin relating to the Revolving Facility will fluctuate depending upon the Company’s Consolidated Leverage Ratio. At April 1, 2016, the date of payment of the principal amount of loans outstanding under the Tranche B-1 Term Facility discussed above, borrowings under the Tranche B-1 Term Facility bore interest at LIBOR plus an applicable margin of 3.00%. At July 1, 2017, borrowings under the Tranche B-2 Term Facility bore interest at LIBOR plus an applicable margin of 3.25%. Based on the Company’s Consolidated Leverage Ratio as of July 1, 2017, had there been any borrowings under the Revolving Facility, it would have borne interest at LIBOR plus an applicable margin of 2.50%. On a quarterly basis, the Company will pay a commitment fee to the lenders under the Revolving Facility in respect of unutilized commitments thereunder, which commitment fee will fluctuate depending upon the Company’s Consolidated Leverage Ratio. Based on the Company’s Consolidated Leverage Ratio as of July 1, 2017 and December 31, 2016, the commitment fee was 0.50% per annum. For the six months ended July 1, 2017 and the fiscal year ended December 31, 2016, the Company paid $122 and $31, respectively, in commitment fees. The Company also will pay customary letter of credit fees and fronting fees under the Revolving Facility, which totaled $24 for the six months ended July 1, 2017 and $49 for the fiscal year ended December 31, 2016. The Credit Agreement contains customary covenants including covenants that, in certain circumstances, restrict the Company’s ability to incur additional indebtedness, pay dividends on and redeem capital stock, make other payments, including investments, sell its assets and enter into consolidations, mergers and transfers of all or substantially all of its assets. The WWI Credit Facility does not require the Company to meet any financial maintenance covenants and is guaranteed by certain of the Company’s existing and future subsidiaries. Substantially all of the Company’s assets secure the WWI Credit Facility. At July 1, 2017 and December 31, 2016, the Company’s debt consisted entirely of variable-rate instruments. An interest rate swap was entered into to hedge a portion of the cash flow exposure associated with the Company’s variable-rate borrowings. The weighted average interest rate (which includes amortization of deferred financing costs) on the Company’s outstanding debt, exclusive of the impact of the swap, was approximately 4.64% and 4.41% per annum based on interest rates at July 1, 2017 and December 31, 2016, respectively. The weighted average interest rate (which includes amortization of deferred financing costs) on the Company’s outstanding debt, including the impact of the swap, was approximately 5.27% and 5.32% per annum based on interest rates at July 1, 2017 and December 31, 2016, respectively.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jul. 01, 2017
Earnings Per Share [Abstract]
Earnings Per Share	8. Basic earnings per share (“EPS”) are calculated utilizing the weighted average number of common shares outstanding during the periods presented. Diluted EPS is calculated utilizing the weighted average number of common shares outstanding during the periods presented adjusted for the effect of dilutive common stock equivalents. The following table sets forth the computation of basic and diluted EPS: Three Months Ended Six Months Ended July 1, July 2, July 1, July 2, 2017 2016 2017 2016 Numerator: Net income attributable to Weight Watchers International, Inc. $ 45,173 $ 30,494 $ 55,825 $ 19,741 Denominator: Weighted average shares of common stock outstanding 64,269 63,740 64,124 63,644 Effect of dilutive common stock equivalents 3,468 2,194 3,180 2,246 Weighted average diluted common shares outstanding 67,737 65,934 67,304 65,890 Earnings per share attributable to Weight Watchers International, Inc. Basic $ 0.70 $ 0.48 $ 0.87 $ 0.31 Diluted $ 0.67 $ 0.46 $ 0.83 $ 0.30 The number of anti-dilutive common stock equivalents excluded from the calculation of the weighted average number of common shares for diluted EPS was 868 and 1,265 for the three months ended July 1, 2017 and July 2, 2016, respectively and 956 and 1,205 for the six months ended July 1, 2017 and July 2, 2016, respectively.

Stock Plans

Stock Plans	6 Months Ended
	Jul. 01, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock Plans	9. On May 6, 2008 and May 12, 2004, respectively, the Company’s shareholders approved the 2008 Stock Incentive Plan (the “2008 Plan”) and the 2004 Stock Incentive Plan (the “2004 Plan”). On May 6, 2014, the Company’s shareholders approved the 2014 Stock Incentive Plan (as amended and restated, the “2014 Plan”), which replaced the 2008 Plan and 2004 Plan for all equity-based awards granted on or after May 6, 2014. The 2014 Plan is designed to promote the long-term financial interests and growth of the Company by attracting, motivating and retaining employees with the ability to contribute to the success of the business and to align compensation for the Company’s employees over a multi-year period directly with the interests of the shareholders of the Company. The Company’s Board of Directors or a committee thereof administers the 2014 Plan. Pursuant to the restricted stock provisions of the 2014 Plan, in fiscal 2016 the Compensation and Benefits Committee of the Company’s Board of Directors (the “Compensation Committee”) determined to grant 289.9 performance-based stock unit (“PSU”) awards having both time- and performance-vesting criteria. The time-vesting criteria for these PSUs will be satisfied on the third anniversary of the grant date (i.e., May 16, 2019). The performance-vesting criteria for these PSUs will be satisfied if the Company has achieved a Debt Ratio (as defined in the applicable term sheet for these PSU awards and based on a Debt to EBITDAS ratio (each, as defined therein)) at levels at or above a “threshold” level performance of 4.5x over the performance period from December 31, 2017 to December 29, 2018. Pursuant to these awards, the number of PSUs that become vested, if any, upon the satisfaction of both vesting criteria, shall be equal to (x) the target number of PSUs granted multiplied by (y) the applicable Debt Ratio achievement percentage, rounded down to avoid the issuance of fractional shares. If all of these awards fully meet the time-vesting criteria and the minimum performance condition is attained, depending on the Company’s Debt Ratio achievement, the number of shares of the Company’s common stock issuable under these PSUs range from 62.5 to 312.5. The Company is currently accruing compensation expense to what it believes is the probable outcome upon vesting. Additionally, pursuant to the restricted stock provisions of the 2014 Plan, in fiscal 2017 the Compensation Committee determined to grant 98.5 PSU awards in May 2017 having both time- and performance-vesting criteria. The time-vesting criteria for these PSUs will be satisfied on the third anniversary of the grant date (i.e., May 15, 2020). The performance-vesting criteria for these PSUs will be satisfied if the Company has achieved certain annual operating income objectives in each fiscal year over a three-year period (i.e., fiscal 2017 through fiscal 2019) (each, a “2017 Award Performance Year”). When the performance measure has been met for a particular 2017 Award Performance Year, that portion of units is “banked” for potential issuance following the satisfaction of the three-year time-vesting criteria. Such portion of units to be “banked” shall be equal to (x) the target number of PSUs granted for the applicable 2017 Award Performance Year multiplied by (y) the applicable achievement percentage, rounded down to avoid the issuance of fractional shares. If all of these awards fully meet the time-vesting criteria and the minimum performance condition is attained in each 2017 Award Performance Year, depending on the Company’s performance achievement, the number of shares of the Company’s common stock issuable under these PSUs range from 32.8 to 164.2. The Company is currently accruing compensation expense to what it believes is the probable outcome upon vesting.

Income Taxes

Income Taxes	6 Months Ended
	Jul. 01, 2017
Income Tax Disclosure [Abstract]
Income Taxes	10. The effective tax rates for the three and six months ended July 1, 2017 were 36.5% and 23.2%, respectively. The effective tax rates for the three and six months ended July 2, 2016 were 31.5% and 30.0%, respectively. For the six months ended July 1, 2017, the primary difference between the US federal statutory tax rate and the Company’s consolidated effective tax rate was due to the $11,633 tax benefit related to the cessation of operations of the Company’s Spanish subsidiary, partially offset by $604 of tax expense related to tax shortfalls in connection with the updated guidance on stock compensation in the first quarter of fiscal 2017, as described in Note 3. For the six months ended July 2, 2016, the primary difference between the US federal statutory tax rate and the Company’s consolidated effective tax rate was due to the reversal of a $2,500 valuation allowance related to tax benefits for foreign losses expected to be realized. The differences between the US federal statutory tax rate and the Company’s consolidated effective tax rate is as follows: Three Months Ended Six Months Ended July 1, July 2, July 1, July 2, 2017 2016 2017 2016 US federal statutory tax rate 35.0 % 35.0 % 35.0 % 35.0 % State income taxes (net of federal benefit) 1.8 % 0.8 % 2.4 % 0.1 % Cessation of Spanish operations 0.4 % 0.0 % (16.0 %) 0.0 % Research and development credit (1.1 %) 0.0 % (2.2 %) 0.0 % Tax shortfall on share-based awards (0.8 %) 0.0 % 0.8 % 0.0 % Reserves for uncertain tax positions 0.4 % 0.2 % 0.7 % 0.6 % Increase (decrease) in valuation allowance 0.1 % (1.2 %) 1.2 % (9.4 %) Other 0.7 % (3.3 %) 1.3 % 3.7 % Effective Tax Rate 36.5 % 31.5 % 23.2 % 30.0 %

Legal

Legal	6 Months Ended
	Jul. 01, 2017
Commitments And Contingencies Disclosure [Abstract]
Legal	11. Raymond Roberts v. Weight Watchers International, Inc. On January 7, 2016, an Online Plus Plus Other Litigation Matters Due to the nature of the Company’s activities, it is also, at times, subject to pending and threatened legal actions that arise out of the ordinary course of business. In the opinion of management, the disposition of any such matters is not expected, individually or in the aggregate, to have a material effect on the Company’s results of operations, financial condition or cash flows.

Derivative Instruments and Hedg

Derivative Instruments and Hedging	6 Months Ended
	Jul. 01, 2017
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging	12. As of July 1, 2017 and December 31, 2016, the Company had in effect an interest rate swap with a notional amount totaling $1,250,000 and $1,500,000, respectively. On July 26, 2013, in order to hedge a portion of its variable rate debt, the Company entered into a forward-starting interest rate swap with an effective date of March 31, 2014 and a termination date of April 2, 2020. The initial notional amount of this swap was $1,500,000. During the term of this swap, the notional amount decreased from $1,500,000 effective March 31, 2014 to $1,250,000 on April 3, 2017, and will decrease to $1,000,000 on April 1, 2019. This interest rate swap effectively fixes the variable interest rate on the notional amount of this swap at 2.38%. This swap qualifies for hedge accounting and, therefore, changes in the fair value of this swap have been recorded in accumulated other comprehensive loss. As of July 1, 2017 and December 31, 2016, cumulative unrealized losses for qualifying hedges were reported as a component of accumulated other comprehensive loss in the amounts of $13,332 ($21,856 before taxes) and $16,002 ($26,232 before taxes), respectively. The Company is hedging forecasted transactions for periods not exceeding the next three years. The Company expects approximately $5,765 ($9,451 before taxes) of derivative losses included in accumulated other comprehensive loss at July 1, 2017, based on current market rates, will be reclassified into earnings within the next 12 months.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jul. 01, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	13. Accounting guidance on fair value measurements for certain financial assets and liabilities requires that assets and liabilities carried at fair value be classified and disclosed in one of the following three categories: • Level 1 – Quoted prices in active markets for identical assets or liabilities. • Level 2 – Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. When measuring fair value, the Company is required to maximize the use of observable inputs and minimize the use of unobservable inputs. Fair Value of Financial Instruments The Company’s significant financial instruments include long-term debt and an interest rate swap agreement as of July 1, 2017 and December 31, 2016. The fair value of the Company’s Term Facilities is determined by utilizing average bid prices on or near the end of each fiscal quarter (Level 2 input). As of July 1, 2017 and December 31, 2016, the fair value of the Company’s long-term debt was approximately $1,853,925 and $1,671,920, respectively, as compared to the carrying value (net of deferring financing costs) of $1,919,912 and $2,002,299, respectively. Derivative Financial Instruments The fair values for the Company’s derivative financial instruments are determined using observable current market information such as the prevailing LIBOR interest rate and LIBOR yield curve rates and include consideration of counterparty credit risk. See Note 12 for disclosures related to derivative financial instruments. The following table presents the aggregate fair value of the Company’s derivative financial instruments: Fair Value Measurements Using: Total Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Interest rate swap liability at July 1, 2017 $ 25,702 $ 0 $ 25,702 $ 0 Interest rate swap liability at December 31, 2016 $ 31,974 $ 0 $ 31,974 $ 0 The Company did not have any transfers into or out of Levels 1 and 2, and did not maintain any assets or liabilities classified as Level 3, during the six months ended July 1, 2017 and the fiscal year ended December 31, 2016.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Jul. 01, 2017
Equity [Abstract]
Accumulated Other Comprehensive Loss	14. Amounts reclassified out of accumulated other comprehensive loss are as follows: Changes in Accumulated Other Comprehensive Loss by Component (a) Six Months Ended July 1, 2017 Loss on Qualifying Hedges Loss on Foreign Currency Translation Total Beginning Balance at December 31, 2016 $ (16,002 ) $ (11,118 ) $ (27,120 ) Other comprehensive (loss) income before reclassifications, net of tax (2,915 ) 2,892 (23 ) Amounts reclassified from accumulated other comprehensive loss, net of tax (b) 5,585 787 6,372 Net current period other comprehensive income including noncontrolling interest 2,670 3,679 6,349 Less: net current period other comprehensive income attributable to the noncontrolling interest 0 41 41 Ending Balance at July 1, 2017 $ (13,332 ) $ (7,398 ) (20,730 ) (a) Amounts in parentheses indicate debits (b) See separate table below for details about these reclassifications Six Months Ended July 2, 2016 Loss on Qualifying Hedges Loss on Foreign Currency Translation Total Beginning Balance at January 2, 2016 $ (23,135 ) $ (14,130 ) $ (37,265 ) Other comprehensive (loss) income before reclassifications, net of tax (18,627 ) 7,143 (11,484 ) Amounts reclassified from accumulated other comprehensive loss, net of tax (b) 7,546 0 7,546 Net current period other comprehensive (loss) income including noncontrolling interest (11,081 ) 7,143 (3,938 ) Less: net current period other comprehensive income attributable to the noncontrolling interest 0 (470 ) (470 ) Ending Balance at July 2, 2016 $ (34,216 ) $ (7,457 ) $ (41,673 ) (a) Amounts in parentheses indicate debits (b) See separate table below for details about these reclassifications Reclassifications out of Accumulated Other Comprehensive Loss (a) Three Months Ended Six Months Ended July 1, July 2, July 1, July 2, 2017 2016 2017 2016 Details about Other Comprehensive Loss Components Amounts Reclassified from Accumulated Other Comprehensive Loss Amounts Reclassified from Accumulated Other Comprehensive Loss Affected Line Item in the Statement Where Net Income is Presented Loss on Qualifying Hedges Interest rate contracts $ (3,905 ) $ (6,185 ) $ (9,155 ) $ (12,370 ) Interest expense (3,905 ) (6,185 ) (9,155 ) (12,370 ) Income before income taxes 1,523 2,412 3,570 4,824 Provision for income taxes $ (2,382 ) $ (3,773 ) $ (5,585 ) $ (7,546 ) Net income Loss on Foreign Currency Translation $ (80 ) $ 0 $ (787 ) $ 0 Other (income) expense, net (80 ) 0 (787 ) 0 Income before income taxes 0 0 0 0 Provision for income taxes $ (80 ) $ 0 $ (787 ) $ 0 Net income (a) Amounts in parentheses indicate debits to profit/loss

Segment Data

Segment Data	6 Months Ended
	Jul. 01, 2017
Segment Reporting [Abstract]
Segment Data	15. The Company has four reportable segments based on an integrated geographical structure as follows: North America, United Kingdom, Continental Europe (CE) and Other. Other consists of Asia Pacific and emerging markets operations and franchise revenues and related costs, all of which have been grouped together as if they were a single reportable segment because they do not meet any of the quantitative thresholds and are immaterial for separate disclosure. To be consistent with the information that is presented to the chief operating decision maker, the Company does not include intercompany activity in the segment results. Information about the Company’s reportable segments is as follows: Total Revenue Three Months Ended Six Months Ended July 1, 2017 July 2, 2016 July 1, 2017 July 2, 2016 North America $ 238,989 $ 211,545 $ 471,719 $ 420,388 United Kingdom 26,435 27,702 50,434 56,613 Continental Europe 61,496 57,048 118,914 112,754 Other 14,753 13,466 29,669 26,916 Total revenue $ 341,673 $ 309,761 $ 670,736 $ 616,671 Net Income Three Months Ended Six Months Ended July 1, 2017 July 2, 2016 July 1, 2017 July 2, 2016 Segment operating income: North America $ 79,073 $ 56,975 $ 113,189 $ 82,499 United Kingdom 6,672 5,506 9,245 5,915 Continental Europe 22,767 19,523 27,823 20,729 Other 3,263 2,355 4,941 3,114 Total segment operating income 111,775 84,359 155,198 112,257 General corporate expenses 15,569 10,628 28,758 24,970 Interest expense 27,092 28,609 55,234 58,634 Other (income) expense, net (488 ) 607 154 542 Gain on early extinguishment of debt (1,554 ) 0 (1,554 ) 0 Provision for income taxes 25,992 14,034 16,864 8,431 Net income 45,164 30,481 55,742 19,680 Net loss attributable to the noncontrolling interest 9 13 83 61 Net income attributable to Weight Watchers International, Inc. $ 45,173 $ 30,494 $ 55,825 $ 19,741 Depreciation and Amortization Three Months Ended Six Months Ended July 1, 2017 July 2, 2016 July 1, 2017 July 2, 2016 North America $ 9,738 $ 10,894 $ 19,868 $ 21,779 United Kingdom 346 299 628 517 Continental Europe 292 428 601 884 Other 136 170 275 469 Total segment depreciation and amortization 10,512 11,791 21,372 23,649 General corporate depreciation and amortization 3,556 2,601 7,043 5,274 Depreciation and amortization $ 14,068 $ 14,392 $ 28,415 $ 28,923

Related Party

Related Party	6 Months Ended
	Jul. 01, 2017
Related Party Transactions [Abstract]
Related Party	16. As more fully described in Note 4, on October 18, 2015, the Company entered into the Strategic Collaboration Agreement with Ms. Winfrey, under which she will consult with the Company and participate in developing, planning, executing and enhancing the Weight Watchers program and related initiatives, and provide it with services in her discretion to promote the Company and its programs, products and services. In addition to the Strategic Collaboration Agreement, Ms. Winfrey and her related entities provided services to the Company totaling $874 and $2,556 for the three and six months ended July 1, 2017, respectively and $542 and $1,685 for the three and six months ended July 2, 2016, respectively, which services included advertising, production and related fees. The Company’s accounts payable to parties related to Ms. Winfrey at July 1, 2017 and December 31, 2016 was $0 and $1,123, respectively.

Franchise Rights Acquired, Go23

Franchise Rights Acquired, Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jul. 01, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Changes in Carrying Values of Goodwill	For the six months ended July 1, 2017, the change in the carrying amount of goodwill is due to the effect of exchange rate changes as follows: North United Continental America Kingdom Europe Other Total Balance as of December 31, 2016 $ 137,543 $ 1,145 $ 6,884 $ 20,566 $ 166,138 Effect of exchange rate changes 1,554 63 573 (416 ) 1,774 Balance as of July 1, 2017 $ 139,097 $ 1,208 $ 7,457 $ 20,150 $ 167,912
Schedule of Finite-Lived Intangible Assets by Major Class	The carrying values of finite-lived intangible assets as of July 1, 2017 and December 31, 2016 were as follows: July 1, 2017 December 31, 2016 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization Capitalized software costs $ 130,789 $ 110,338 $ 126,737 $ 101,316 Website development costs 128,808 98,145 119,971 87,736 Trademarks 11,145 10,745 11,092 10,647 Other 8,030 7,645 7,945 7,434 Trademarks and other intangible assets $ 278,772 $ 226,873 $ 265,745 $ 207,133 Franchise rights acquired 4,528 4,528 4,551 4,551 Total finite-lived intangible assets $ 283,300 $ 231,401 $ 270,296 $ 211,684
Schedule of Expected Amortization Expense	Estimated amortization expense of existing finite-lived intangible assets for the next five fiscal years and thereafter is as follows: Remainder of fiscal 2017 $ 17,528 Fiscal 2018 $ 21,364 Fiscal 2019 $ 10,195 Fiscal 2020 $ 2,420 Fiscal 2021 and thereafter $ 392

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jul. 01, 2017
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	The components of the Company’s long-term debt were as follows: July 1, 2017 December 31, 2016 Principal Balance Effective Rate (1) Principal Balance Effective Rate (1) Revolving Facility due April 2, 2018 $ 0 0.00 % $ 0 3.35 % Tranche B-1 Term Facility due April 2, 2016 0 0.00 % 0 3.96 % Tranche B-2 Term Facility due April 2, 2020 1,935,440 4.64 % 2,021,250 4.41 % Total 1,935,440 4.64 % 2,021,250 4.38 % Less: Current Portion 20,213 21,000 Unamortized Deferred Financing Costs 15,528 18,951 Total Long-Term Debt $ 1,899,699 $ 1,981,299 (1) Includes amortization of deferred financing costs. For fiscal 2016, the effective interest rate for the Revolving Facility and Tranche B-1 Term Facility was computed based on interest expense incurred over the period for which borrowings were outstanding.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jul. 01, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table sets forth the computation of basic and diluted EPS: Three Months Ended Six Months Ended July 1, July 2, July 1, July 2, 2017 2016 2017 2016 Numerator: Net income attributable to Weight Watchers International, Inc. $ 45,173 $ 30,494 $ 55,825 $ 19,741 Denominator: Weighted average shares of common stock outstanding 64,269 63,740 64,124 63,644 Effect of dilutive common stock equivalents 3,468 2,194 3,180 2,246 Weighted average diluted common shares outstanding 67,737 65,934 67,304 65,890 Earnings per share attributable to Weight Watchers International, Inc. Basic $ 0.70 $ 0.48 $ 0.87 $ 0.31 Diluted $ 0.67 $ 0.46 $ 0.83 $ 0.30

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jul. 01, 2017
Income Tax Disclosure [Abstract]
Summary of Differences Between US Federal Statutory Tax Rate and Company's Consolidated Effective Tax Rate	The differences between the US federal statutory tax rate and the Company’s consolidated effective tax rate is as follows: Three Months Ended Six Months Ended July 1, July 2, July 1, July 2, 2017 2016 2017 2016 US federal statutory tax rate 35.0 % 35.0 % 35.0 % 35.0 % State income taxes (net of federal benefit) 1.8 % 0.8 % 2.4 % 0.1 % Cessation of Spanish operations 0.4 % 0.0 % (16.0 %) 0.0 % Research and development credit (1.1 %) 0.0 % (2.2 %) 0.0 % Tax shortfall on share-based awards (0.8 %) 0.0 % 0.8 % 0.0 % Reserves for uncertain tax positions 0.4 % 0.2 % 0.7 % 0.6 % Increase (decrease) in valuation allowance 0.1 % (1.2 %) 1.2 % (9.4 %) Other 0.7 % (3.3 %) 1.3 % 3.7 % Effective Tax Rate 36.5 % 31.5 % 23.2 % 30.0 %

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jul. 01, 2017
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis	The following table presents the aggregate fair value of the Company’s derivative financial instruments: Fair Value Measurements Using: Total Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Interest rate swap liability at July 1, 2017 $ 25,702 $ 0 $ 25,702 $ 0 Interest rate swap liability at December 31, 2016 $ 31,974 $ 0 $ 31,974 $ 0

Accumulated Other Comprehensi28

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jul. 01, 2017
Equity [Abstract]
Changes in Accumulated Other Comprehensive Loss by Component	Amounts reclassified out of accumulated other comprehensive loss are as follows: Changes in Accumulated Other Comprehensive Loss by Component (a) Six Months Ended July 1, 2017 Loss on Qualifying Hedges Loss on Foreign Currency Translation Total Beginning Balance at December 31, 2016 $ (16,002 ) $ (11,118 ) $ (27,120 ) Other comprehensive (loss) income before reclassifications, net of tax (2,915 ) 2,892 (23 ) Amounts reclassified from accumulated other comprehensive loss, net of tax (b) 5,585 787 6,372 Net current period other comprehensive income including noncontrolling interest 2,670 3,679 6,349 Less: net current period other comprehensive income attributable to the noncontrolling interest 0 41 41 Ending Balance at July 1, 2017 $ (13,332 ) $ (7,398 ) (20,730 ) (a) Amounts in parentheses indicate debits (b) See separate table below for details about these reclassifications Six Months Ended July 2, 2016 Loss on Qualifying Hedges Loss on Foreign Currency Translation Total Beginning Balance at January 2, 2016 $ (23,135 ) $ (14,130 ) $ (37,265 ) Other comprehensive (loss) income before reclassifications, net of tax (18,627 ) 7,143 (11,484 ) Amounts reclassified from accumulated other comprehensive loss, net of tax (b) 7,546 0 7,546 Net current period other comprehensive (loss) income including noncontrolling interest (11,081 ) 7,143 (3,938 ) Less: net current period other comprehensive income attributable to the noncontrolling interest 0 (470 ) (470 ) Ending Balance at July 2, 2016 $ (34,216 ) $ (7,457 ) $ (41,673 ) (a) Amounts in parentheses indicate debits (b) See separate table below for details about these reclassifications
Reclassifications out of Accumulated Other Comprehensive Loss	Reclassifications out of Accumulated Other Comprehensive Loss (a) Three Months Ended Six Months Ended July 1, July 2, July 1, July 2, 2017 2016 2017 2016 Details about Other Comprehensive Loss Components Amounts Reclassified from Accumulated Other Comprehensive Loss Amounts Reclassified from Accumulated Other Comprehensive Loss Affected Line Item in the Statement Where Net Income is Presented Loss on Qualifying Hedges Interest rate contracts $ (3,905 ) $ (6,185 ) $ (9,155 ) $ (12,370 ) Interest expense (3,905 ) (6,185 ) (9,155 ) (12,370 ) Income before income taxes 1,523 2,412 3,570 4,824 Provision for income taxes $ (2,382 ) $ (3,773 ) $ (5,585 ) $ (7,546 ) Net income Loss on Foreign Currency Translation $ (80 ) $ 0 $ (787 ) $ 0 Other (income) expense, net (80 ) 0 (787 ) 0 Income before income taxes 0 0 0 0 Provision for income taxes $ (80 ) $ 0 $ (787 ) $ 0 Net income (a) Amounts in parentheses indicate debits to profit/loss

Segment Data (Tables)

Segment Data (Tables)	6 Months Ended
	Jul. 01, 2017
Segment Reporting [Abstract]
Information About Reportable Segments	Information about the Company’s reportable segments is as follows: Total Revenue Three Months Ended Six Months Ended July 1, 2017 July 2, 2016 July 1, 2017 July 2, 2016 North America $ 238,989 $ 211,545 $ 471,719 $ 420,388 United Kingdom 26,435 27,702 50,434 56,613 Continental Europe 61,496 57,048 118,914 112,754 Other 14,753 13,466 29,669 26,916 Total revenue $ 341,673 $ 309,761 $ 670,736 $ 616,671 Net Income Three Months Ended Six Months Ended July 1, 2017 July 2, 2016 July 1, 2017 July 2, 2016 Segment operating income: North America $ 79,073 $ 56,975 $ 113,189 $ 82,499 United Kingdom 6,672 5,506 9,245 5,915 Continental Europe 22,767 19,523 27,823 20,729 Other 3,263 2,355 4,941 3,114 Total segment operating income 111,775 84,359 155,198 112,257 General corporate expenses 15,569 10,628 28,758 24,970 Interest expense 27,092 28,609 55,234 58,634 Other (income) expense, net (488 ) 607 154 542 Gain on early extinguishment of debt (1,554 ) 0 (1,554 ) 0 Provision for income taxes 25,992 14,034 16,864 8,431 Net income 45,164 30,481 55,742 19,680 Net loss attributable to the noncontrolling interest 9 13 83 61 Net income attributable to Weight Watchers International, Inc. $ 45,173 $ 30,494 $ 55,825 $ 19,741 Depreciation and Amortization Three Months Ended Six Months Ended July 1, 2017 July 2, 2016 July 1, 2017 July 2, 2016 North America $ 9,738 $ 10,894 $ 19,868 $ 21,779 United Kingdom 346 299 628 517 Continental Europe 292 428 601 884 Other 136 170 275 469 Total segment depreciation and amortization 10,512 11,791 21,372 23,649 General corporate depreciation and amortization 3,556 2,601 7,043 5,274 Depreciation and amortization $ 14,068 $ 14,392 $ 28,415 $ 28,923

Accounting Standards Adopted 30

Accounting Standards Adopted in Current Year - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Taxes paid related to net share settlement of equity awards	$ 3,648	$ 0
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess tax benefits in equity		649
Taxes paid related to net share settlement of equity awards		$ 1,875

Winfrey Transaction - Additiona

Winfrey Transaction - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	Oct. 19, 2015	Oct. 18, 2015	Jan. 02, 2016
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Stock option expense			$ 12,759
Share based compensation ,dividend yield	0.00%
Share based compensation ,volatility	63.88%
Share based compensation ,risk free rate	1.36%
Option
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Common stocks to be purchased through options	3,513
Options exercisable price per share	$ 6.97
Prior To Fourth Anniversary
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of options shares to be transferred	60.00%
Prior To Fifth Anniversary
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of options shares to be transferred	80.00%
Prior To Second Anniversary
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of options shares to be transferred	20.00%
Prior To Third Anniversary
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of options shares to be transferred	40.00%
Strategic Collaboration Agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Initial term of agreement		5 years
Additional renewal terms		1 year
Share Purchase Agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Purchased shares	6,362
Purchased shares, price per share	$ 6.79
Aggregate purchase price	$ 43,199
Fees related to share issuance	2,315
Fees related to share issuance, reduction of equity	$ 1,700
Share transfer restriction period	2 years
Minimum percentage of voting power transfer for change of control	50.00%
Share Purchase Agreement | Prior To Third Anniversary | Maximum
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of shares transferable	15.00%
Share Purchase Agreement | Prior To Fourth Anniversary | Maximum
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of shares transferable	30.00%
Share Purchase Agreement | Prior To Fifth Anniversary | Maximum
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of shares transferable	60.00%
Share Purchase Agreement | Right of first offer, the "Securities Act" | Minimum
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of Company's issued and outstanding Common Stock proposed for transfer	1.00%
Share Purchase Agreement | Right of first refusal, Competitor of the Company | Minimum
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of Company's issued and outstanding Common Stock proposed for transfer	1.00%
Share Purchase Agreement | Right of first refusal | Minimum
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of Company's issued and outstanding Common Stock proposed for transfer	5.00%

Acquisition of Franchisee - Add

Acquisition of Franchisee - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 27, 2016	Jul. 01, 2017	Dec. 31, 2016
Business Acquisition
Business acquisition, purchase price allocation, goodwill		$ 167,912	$ 166,138
Weight Watchers of Greater Miami, Inc.
Business Acquisition
Business acquisition, purchase price allocation, net purchase price	$ 3,250
Business acquisition, net purchase price	2,898
Business acquisition, cash acquired	300
Business acquisition, assumed net liabilities	52
Business acquisition, purchase price allocation, goodwill	2,945
Customer Relationships | Weight Watchers of Greater Miami, Inc.
Business Acquisition
Business acquisition, purchase price allocation, finite lived intangible assets	191
Franchise Rights | Weight Watchers of Greater Miami, Inc.
Business Acquisition
Business acquisition, purchase price allocation, indefinite lived intangible assets	$ 114

Changes in Carrying Values of G

Changes in Carrying Values of Goodwill (Detail) $ in Thousands	6 Months Ended
	Jul. 01, 2017USD ($)
Goodwill [Line Items]
Beginning balance	$ 166,138
Effect of exchange rate changes	1,774
Ending balance	167,912
North America
Goodwill [Line Items]
Beginning balance	137,543
Effect of exchange rate changes	1,554
Ending balance	139,097
United Kingdom Segment
Goodwill [Line Items]
Beginning balance	1,145
Effect of exchange rate changes	63
Ending balance	1,208
Continental Europe
Goodwill [Line Items]
Beginning balance	6,884
Effect of exchange rate changes	573
Ending balance	7,457
Other
Goodwill [Line Items]
Beginning balance	20,566
Effect of exchange rate changes	(416)
Ending balance	$ 20,150

Franchise Rights Acquired, Go34

Franchise Rights Acquired, Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	May 07, 2017	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Dec. 31, 2016	Jun. 27, 2016
Goodwill and Intangible Assets Disclosure
Goodwill		$ 167,912		$ 167,912		$ 166,138
Franchise right maturity period				7 years
Finite-lived intangible assets, aggregate amortization expense		$ 9,015	$ 8,603	$ 18,190	$ 17,023
Weight Watchers of Greater Miami, Inc.
Goodwill and Intangible Assets Disclosure
Goodwill							$ 2,945
Franchise Rights | VPM
Goodwill and Intangible Assets Disclosure
Amortization period				2 years
Franchise Rights | Weight Watchers of Greater Miami, Inc.
Goodwill and Intangible Assets Disclosure
Amortization period				3 months
Maximum | Franchise Rights
Goodwill and Intangible Assets Disclosure
Finite-lived intangible assets, estimated useful life (in years)				1 year
BRAZIL
Goodwill and Intangible Assets Disclosure
Reporting unit, percentage of fair value in excess of carrying amount		10.00%		10.00%
Goodwill		$ 19,295		$ 19,295
Franchise Rights
Goodwill and Intangible Assets Disclosure
Indefinite-lived intangible assets, impairment charges	$ 0

Carrying Amount of Finite-Lived

Carrying Amount of Finite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands	Jul. 01, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets
Gross Carrying Amount	$ 283,300	$ 270,296
Accumulated Amortization	231,401	211,684
Capitalized software costs
Finite-Lived Intangible Assets
Gross Carrying Amount	130,789	126,737
Accumulated Amortization	110,338	101,316
Website development costs
Finite-Lived Intangible Assets
Gross Carrying Amount	128,808	119,971
Accumulated Amortization	98,145	87,736
Trademarks
Finite-Lived Intangible Assets
Gross Carrying Amount	11,145	11,092
Accumulated Amortization	10,745	10,647
Other
Finite-Lived Intangible Assets
Gross Carrying Amount	8,030	7,945
Accumulated Amortization	7,645	7,434
Trademarks and other intangible assets
Finite-Lived Intangible Assets
Gross Carrying Amount	278,772	265,745
Accumulated Amortization	226,873	207,133
Franchise Rights
Finite-Lived Intangible Assets
Gross Carrying Amount	4,528	4,551
Accumulated Amortization	$ 4,528	$ 4,551

Estimated Amortization Expense

Estimated Amortization Expense of Existing Finite-Lived Intangible Assets (Detail) $ in Thousands	Jul. 01, 2017USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Remainder of fiscal 2017	$ 17,528
Fiscal 2,018	21,364
Fiscal 2,019	10,195
Fiscal 2,020	2,420
Fiscal 2021 and thereafter	$ 392

Components of Current and Long-

Components of Current and Long-Term Debt (Detail) - USD ($) $ in Thousands		Jul. 01, 2017	Dec. 31, 2016
Debt Instrument
Total Debt		$ 1,935,440	$ 2,021,250
Less: Current Portion		20,213	21,000
Unamortized Deferred Financing Costs		15,528	18,951
Total Long-Term Debt		$ 1,899,699	$ 1,981,299
Effective Interest Rate	[1]	4.64%	4.38%
Tranche B-1 Term Facility due April 2, 2016
Debt Instrument
Total Debt		$ 0	$ 0
Effective Interest Rate	[1]	0.00%	3.96%
Tranche B-2 Term Facility due April 2, 2020
Debt Instrument
Total Debt		$ 1,935,440	$ 2,021,250
Effective Interest Rate	[1]	4.64%	4.41%
Revolving Facility due April 2, 2018
Debt Instrument
Total Debt		$ 0	$ 0
Effective Interest Rate	[1]	0.00%	3.35%
[1]	Includes amortization of deferred financing costs. For fiscal 2016, the effective interest rate for the Revolving Facility and Tranche B-1 Term Facility was computed based on interest expense incurred over the period for which borrowings were outstanding.

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail) - USD ($)	May 25, 2017	May 18, 2017	Sep. 16, 2016	Jul. 29, 2016	Apr. 01, 2016	Jul. 14, 2015	Jun. 26, 2015	Jun. 17, 2015	Mar. 25, 2015	Mar. 13, 2015	Feb. 21, 2014	Apr. 30, 2013	Jul. 01, 2017	Jul. 02, 2016	Sep. 27, 2014	Jun. 29, 2013	Jul. 01, 2017	Jul. 02, 2016	Dec. 31, 2016	May 24, 2017	Jun. 22, 2015	Mar. 20, 2015	Sep. 26, 2014	Apr. 02, 2013
Debt Instrument
Payments of term loan												$ 2,399,904,000					$ 83,334,000	$ 154,823,000
Fees incurred in connection with debt refinancing																$ 44,817,000
Gain on early extinguishment of debt													$ 1,554,000	$ 0		$ 21,685,000	1,554,000	$ 0
Credit facility drew down amount						$ 48,000,000
Credit Facility, aggregate principal amount outstanding													$ 1,935,440,000				$ 1,935,440,000		$ 2,021,250,000
Additional applicable margin in the event the Company receives a corporate rating of BB- from S&P (or lower) and a corporate rating of Ba3 from Moody's (or lower)													0.25%				0.25%
Average interest rate on outstanding debt, exclusive the impact of swap													4.64%				4.64%		4.41%
Average interest rate on outstanding debt, including the impact of swap																	5.27%		5.32%
Tranche B-1 Term Facility due April 2, 2016
Debt Instrument
WWI Credit Facility, maximum borrowing capacity																								$ 300,000,000
Fees incurred in connection with debt refinancing							$ 641,000		$ 601,000
Gain on early extinguishment of debt							6,677,000		4,749,000
Prepayment of accepted offers							77,225,000		57,389,000
Accrued and unpaid interest on the amount to be prepaid							84,862,000		63,065,000
Reduction in obligation									59,728,000
Debt instrument, voluntary prepayment									2,500,000
Write-off of deferred financing fees							$ 321,000		$ 326,000
Principal amount paid on term loan					$ 144,323,000
Credit Facility, aggregate principal amount outstanding													$ 0				$ 0		$ 0
Tranche B-1 Term Facility due April 2, 2016 | London Interbank Offered Rate (LIBOR)
Debt Instrument
WWI Credit Facility, additional interest rate											2.75%						3.00%
Tranche B-1 Term Facility due April 2, 2016 | Maximum
Debt Instrument
Aggregate principal amount, discount par value								$ 229,000,000		$ 75,000,000
Tranche B-1 Term Facility due April 2, 2016 | Minimum
Debt Instrument
Debt instrument, interest rate, effective percentage																					9.00%	9.00%
Tranche B-2 Term Facility due April 2, 2020
Debt Instrument
WWI Credit Facility, maximum borrowing capacity																								2,100,000,000
Fees incurred in connection with debt refinancing	$ 305,000
Gain on early extinguishment of debt	1,554,000
Prepayment of accepted offers	73,030,000
Accrued and unpaid interest on the amount to be prepaid	75,507,000
Write-off of deferred financing fees	$ 618,000
Credit Facility, aggregate principal amount outstanding													$ 1,935,440,000				$ 1,935,440,000		2,021,250,000
Tranche B-2 Term Facility due April 2, 2020 | London Interbank Offered Rate (LIBOR)
Debt Instrument
WWI Credit Facility, additional interest rate											3.00%						3.25%
Tranche B-2 Term Facility due April 2, 2020 | Maximum
Debt Instrument
Aggregate principal amount, discount par value		$ 75,000,000
Tranche B-2 Term Facility due April 2, 2020 | Minimum
Debt Instrument
Debt instrument, interest rate, effective percentage																				3.28%
Tranche B-2 Term Facility due April 2, 2020 | Minimum | London Interbank Offered Rate (LIBOR)
Debt Instrument
WWI Credit Facility, interest rate													0.75%				0.75%
Tranche B-2 Term Facility due April 2, 2020 | Minimum | Base Rate Plus
Debt Instrument
WWI Credit Facility, interest rate													1.75%				1.75%
Term B Loan due January 26, 2014
Debt Instrument
Payments of term loan												128,759,000
Term C Loan due June 30, 2015
Debt Instrument
Payments of term loan												110,602,000
Term D Loan due June 30, 2016
Debt Instrument
Payments of term loan												117,612,000
Term E Loan due March 15, 2017
Debt Instrument
Payments of term loan												1,125,044,000
Term F Loan due March 15, 2019
Debt Instrument
Payments of term loan												817,887,000
Revolver A-1 Loan due June 30, 2014
Debt Instrument
Payments of term loan												21,247,000
Revolver A-2 Loan due March 15, 2017
Debt Instrument
Payments of term loan												$ 78,753,000
Term Loan Facility
Debt Instrument
Debt outstanding amount													$ 1,919,912,000				$ 1,919,912,000		2,002,299,000					2,400,000,000
Revolving Facility due April 2, 2018
Debt Instrument
WWI Credit Facility, maximum borrowing capacity																							$ 50,000,000	250,000,000
Credit facility available amount													48,181,000				48,181,000							$ 248,848,000
Write-off of deferred financing fees related to amendment															$ 1,583,000
Principal amount paid on revolving facility			$ 23,000,000	$ 25,000,000
Loan outstanding under the revolving facility				$ 48,000,000									0				0
Line of credit facility, issued but undrawn letters of credit													1,819,000				1,819,000
Credit Facility, aggregate principal amount outstanding													$ 0				$ 0		$ 0
Revolving credit facility, commitment fee on unused commitments																	0.50%		0.50%
Customary letter of credit fees and fronting fees																	$ 122,000		$ 31,000
Revolving credit facility, commitment fee amount																	$ 24,000		$ 49,000
Revolving Facility due April 2, 2018 | London Interbank Offered Rate (LIBOR)
Debt Instrument
WWI Credit Facility, additional interest rate																	2.50%

Computation of Basic and Dilute

Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Numerator:
Net income attributable to Weight Watchers International, Inc.	$ 45,173	$ 30,494	$ 55,825	$ 19,741
Denominator:
Weighted average shares of common stock outstanding	64,269	63,740	64,124	63,644
Effect of dilutive common stock equivalents	3,468	2,194	3,180	2,246
Weighted average diluted common shares outstanding	67,737	65,934	67,304	65,890
Earnings Per Share attributable to Weight Watchers International, Inc.
Basic	$ 0.70	$ 0.48	$ 0.87	$ 0.31
Diluted	$ 0.67	$ 0.46	$ 0.83	$ 0.30

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Earnings Per Share [Abstract]
Anti-dilutive common stock equivalents excluded from the calculation of diluted earnings per share	868	1,265	956	1,205

Stock Plans - Additional Inform

Stock Plans - Additional Information (Detail) - Performance-based stock unit - shares	6 Months Ended	12 Months Ended
	Jul. 01, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, granted	98,500	289,900
Net debt to EBITDA ratio		450.00%
Performance period (years)	3 years
Vesting period	3 years
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, shares expected to vest		62,500
Common stock issuable	32,800
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, shares expected to vest		312,500
Common stock issuable	164,200

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jul. 01, 2017	Apr. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Income Tax Disclosure [Abstract]
Effective income tax rate	36.50%		31.50%	23.20%	30.00%
Loss on closure of Spain	$ (11,633)			$ (11,633)
Tax shortfall on share-based awards		$ 604
Reversal of valuation allowance related to tax benefits for foreign losses					$ 2,500

Summary of Differences Between

Summary of Differences Between US Federal Statutory Tax Rate and Company's Consolidated Effective Tax Rate (Detail)	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Income Tax Disclosure [Abstract]
US federal statutory tax rate	35.00%	35.00%	35.00%	35.00%
State income taxes (net of federal benefit)	1.80%	0.80%	2.40%	0.10%
Cessation of Spanish operations	0.40%	0.00%	(16.00%)	0.00%
Research and development credit	(1.10%)	(0.00%)	(2.20%)	(0.00%)
Tax shortfall on share-based awards	(0.80%)	0.00%	0.80%	0.00%
Reserves for uncertain tax positions	0.40%	0.20%	0.70%	0.60%
Increase (decrease) in valuation allowance	0.10%	(1.20%)	1.20%	(9.40%)
Other	0.70%	(3.30%)	1.30%	3.70%
Effective Tax Rate	36.50%	31.50%	23.20%	30.00%

Derivative Instruments and He44

Derivative Instruments and Hedging - Additional Information (Detail) - USD ($)	Jul. 26, 2013	Jul. 01, 2017	Dec. 31, 2016
Derivative
Maximum length of time hedging forecasted		3 years
Derivative losses included in accumulated other comprehensive income(loss) that are expected to be reclassified into earnings within the next 12 months, net of tax		$ 5,765,000
Derivative losses included in accumulated other comprehensive income(loss) that are expected to be reclassified into earnings within the next 12 months, before tax		$ 9,451,000
Interest Rate Swap
Derivative
Forward-starting interest rate swap, effective date	Mar. 31, 2014
Forward starting interest rate swap, termination date	Apr. 2, 2020
Derivative interest rate swap percentage		2.38%
Cumulative losses for qualifying hedges reported as a component of accumulated other comprehensive loss net of tax		$ (13,332,000)	$ (16,002,000)
Cumulative losses for qualifying hedges reported as a component of accumulated other comprehensive loss before tax		(21,856,000)	(26,232,000)
Interest Rate Swap | Cash Flow Hedging
Derivative
Notional amount	$ 1,500,000,000	1,250,000,000	$ 1,500,000,000
Interest Rate Swap | Cash Flow Hedging | March 31, 2014
Derivative
Notional amount		$ 1,500,000,000
Forward-starting interest rate swap, effective date		Mar. 31, 2014
Interest Rate Swap | Cash Flow Hedging | April 3, 2017
Derivative
Notional amount		$ 1,250,000,000
Forward-starting interest rate swap, effective date		Apr. 3, 2017
Interest Rate Swap | Cash Flow Hedging | April 1, 2019
Derivative
Notional amount		$ 1,000,000,000
Forward-starting interest rate swap, effective date		Apr. 1, 2019

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($)	Jul. 01, 2017	Dec. 31, 2016	Apr. 02, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value assets, transfer between level 1 to level 2	$ 0	$ 0
Fair value liabilities, transfer between level 1 to level 2	0	0
Fair value assets, transfer between level 2 to level 1	0	0
Fair value liabilities, transfer between level 2 to level 1	0	0
Term Loan Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt	1,853,925,000	1,671,920,000
Carrying value of long-term debt, net of deferring financing costs	$ 1,919,912,000	$ 2,002,299,000	$ 2,400,000,000

Aggregate Fair Value of Derivat

Aggregate Fair Value of Derivative Financial Instruments (Detail) - Fair Value, Measurements, Recurring - Interest Rate Swap - USD ($) $ in Thousands	Jul. 01, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Interest rate swap liability	$ 25,702	$ 31,974
Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Interest rate swap liability	0	0
Fair Value Measurements Using Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Interest rate swap liability	25,702	31,974
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Interest rate swap liability	$ 0	$ 0

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Loss by Component (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017		Jul. 02, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive (loss) income before reclassifications, net of tax	[1]			$ (23)		$ (11,484)
Amounts reclassified from accumulated other comprehensive loss, net of tax	[1],[2]			6,372		7,546
Total other comprehensive gain (loss)		$ 911	$ (1,286)	6,349	[1]	(3,938)	[1]
Less: net current period other comprehensive income attributable to the noncontrolling interest	[1]			41		(470)
Loss on Qualifying Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	[1]			(16,002)		(23,135)
Other comprehensive (loss) income before reclassifications, net of tax	[1]			(2,915)		(18,627)
Amounts reclassified from accumulated other comprehensive loss, net of tax	[1],[2]			5,585		7,546
Total other comprehensive gain (loss)	[1]			2,670		(11,081)
Less: net current period other comprehensive income attributable to the noncontrolling interest	[1]			0		0
Ending balance	[1]	(13,332)	(34,216)	(13,332)		(34,216)
Loss on Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	[1]			(11,118)		(14,130)
Other comprehensive (loss) income before reclassifications, net of tax	[1]			2,892		7,143
Amounts reclassified from accumulated other comprehensive loss, net of tax	[1],[2]			787		0
Total other comprehensive gain (loss)	[1]			3,679		7,143
Less: net current period other comprehensive income attributable to the noncontrolling interest	[1]			41		(470)
Ending balance	[1]	(7,398)	(7,457)	(7,398)		(7,457)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	[1]			(27,120)		(37,265)
Ending balance	[1]	$ (20,730)	$ (41,673)	$ (20,730)		$ (41,673)
[1]	Amounts in parentheses indicate debits
[2]	See separate table below for details about these reclassifications

Reclassifications out of Accumu

Reclassifications out of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense		$ (27,092)	$ (28,609)	$ (55,234)	$ (58,634)
Other (income) expense, net		(488)	607	154	542
Income before income taxes		(71,156)	(44,515)	(72,606)	(28,111)
Provision for income taxes		25,992	14,034	16,864	8,431
Net income		(45,164)	(30,481)	(55,742)	(19,680)
Loss on Qualifying Hedges | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	[1]	(3,905)	(6,185)	(9,155)	(12,370)
Provision for income taxes	[1]	1,523	2,412	3,570	4,824
Net income	[1]	(2,382)	(3,773)	(5,585)	(7,546)
Loss on Qualifying Hedges | Interest Rate Contract | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	[1]	(3,905)	(6,185)	(9,155)	(12,370)
Loss on Foreign Currency Translation | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense, net	[1]	(80)	0	(787)	0
Income before income taxes	[1]	(80)	0	(787)	0
Provision for income taxes	[1]	0	0	0	0
Net income	[1]	$ (80)	$ 0	$ (787)	$ 0
[1]	Amounts in parentheses indicate debits to profit/loss

Segment Data - Additional Infor

Segment Data - Additional Information (Detail)	6 Months Ended
	Jul. 01, 2017Segment
Segment Reporting [Abstract]
Number of reportable segments	4

Information About Reportable Se

Information About Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jun. 29, 2013	Jul. 01, 2017	Jul. 02, 2016
Segment Reporting Information [Line Items]
Net revenue	$ 341,673	$ 309,761		$ 670,736	$ 616,671
Operating income	96,206	73,731		126,440	87,287
Interest expense	27,092	28,609		55,234	58,634
Other (income) expense, net	(488)	607		154	542
Gain on early extinguishment of debt	(1,554)	0	$ (21,685)	(1,554)	0
Provision for income taxes	25,992	14,034		16,864	8,431
Net income	45,164	30,481		55,742	19,680
Net loss attributable to the noncontrolling interest	9	13		83	61
Net income attributable to Weight Watchers International, Inc.	45,173	30,494		55,825	19,741
Depreciation and amortization	14,068	14,392		28,415	28,923
Operating Segments
Segment Reporting Information [Line Items]
Operating income	111,775	84,359		155,198	112,257
Depreciation and amortization	10,512	11,791		21,372	23,649
General corporate expenses
Segment Reporting Information [Line Items]
General corporate expenses	15,569	10,628		28,758	24,970
Depreciation and amortization	3,556	2,601		7,043	5,274
North America
Segment Reporting Information [Line Items]
Net revenue	238,989	211,545		471,719	420,388
North America | Operating Segments
Segment Reporting Information [Line Items]
Operating income	79,073	56,975		113,189	82,499
Depreciation and amortization	9,738	10,894		19,868	21,779
United Kingdom Segment
Segment Reporting Information [Line Items]
Net revenue	26,435	27,702		50,434	56,613
United Kingdom Segment | Operating Segments
Segment Reporting Information [Line Items]
Operating income	6,672	5,506		9,245	5,915
Depreciation and amortization	346	299		628	517
Continental Europe
Segment Reporting Information [Line Items]
Net revenue	61,496	57,048		118,914	112,754
Continental Europe | Operating Segments
Segment Reporting Information [Line Items]
Operating income	22,767	19,523		27,823	20,729
Depreciation and amortization	292	428		601	884
Other
Segment Reporting Information [Line Items]
Net revenue	14,753	13,466		29,669	26,916
Other | Operating Segments
Segment Reporting Information [Line Items]
Operating income	3,263	2,355		4,941	3,114
Depreciation and amortization	$ 136	$ 170		$ 275	$ 469

Related Party - Additional Info

Related Party - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Dec. 31, 2016
Ms. Winfrey and her related entities
Related Party Transaction [Line Items]
Related Party Transaction, service provided by related party	$ 874	$ 542	$ 2,556	$ 1,685
Ms. Winfrey
Related Party Transaction [Line Items]
Accounts payable to related parties	$ 0		$ 0		$ 1,123