Vitamin Shoppe (VSI) 10-Q 8 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 28, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	Vitamin Shoppe, Inc.
Entity Central Index Key	1,360,530
Current Fiscal Year End Date	--12-29
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		24,052,779

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 30, 2017
Current assets:
Cash and cash equivalents	$ 1,910	$ 1,947
Inventories	202,163	218,087
Prepaid expenses and other current assets	37,924	39,473
Current assets held for sale	0	22,625
Total current assets	241,997	282,132
Property and equipment, net of accumulated depreciation and amortization of $334,637 and $334,082 in 2018 and 2017, respectively	137,256	141,520
Other intangibles, net	11,045	11,040
Deferred taxes	27,142	37,278
Other long-term assets	2,560	2,572
Noncurrent assets held for sale	0	16,891
Total assets	420,000	491,433
Current liabilities:
Revolving credit facility	3,000	12,000
Accounts payable	52,078	46,921
Accrued expenses and other current liabilities	68,678	62,645
Current liabilities held for sale	0	5,337
Total current liabilities	123,756	126,903
Convertible notes, net	61,544	126,415
Deferred rent	39,409	40,832
Other long-term liabilities	1,684	1,916
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.01 par value; 250,000,000 shares authorized and no shares issued and outstanding at June 30, 2018 and December 30, 2017	0	0
Common stock, $0.01 par value; 400,000,000 shares authorized, 24,273,510 shares issued and 24,019,510 shares outstanding at June 30, 2018, and 24,220,509 shares issued and 24,021,948 shares outstanding at December 30, 2017	243	242
Additional paid-in capital	83,985	88,823
Treasury stock, at cost; 254,000 shares at June 30, 2018 and 198,561 shares at December 30, 2017	(7,254)	(7,010)
Retained earnings	116,633	113,312
Total stockholders’ equity	193,607	195,367
Total liabilities and stockholders’ equity	$ 420,000	$ 491,433

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 30, 2017
Statement of Financial Position [Abstract]
Accumulated depreciation and amortization, property and equipment	$ 334,637	$ 334,082
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	250,000,000	250,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	24,273,510	24,220,509
Common stock, shares outstanding (in shares)	24,019,510	24,021,948
Treasury stock, shares (in shares)	254,000	198,561

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Income Statement [Abstract]
Net sales	$ 293,103	$ 296,420	$ 589,067	$ 602,192
Cost of goods sold	198,867	199,099	401,720	405,889
Gross profit	94,236	97,321	187,347	196,303
Selling, general and administrative expenses	88,918	81,604	177,516	161,745
Goodwill and store fixed-assets impairment charges	131	168,090	833	168,090
Income (loss) from operations	5,187	(152,373)	8,998	(133,532)
Gain on extinguishment of debt	3,727	0	16,229	0
Interest expense, net	1,699	2,374	4,140	4,786
Income (loss) before provision (benefit) for income taxes	7,215	(154,747)	21,087	(138,318)
Provision (benefit) for income taxes	1,932	(8,331)	6,147	(1,797)
Net income (loss) from continuing operations	5,283	(146,416)	14,940	(136,521)
Net gain (loss) from discontinued operations, net of tax	1,897	(10,003)	(11,619)	(11,902)
Net income (loss)	$ 7,180	$ (156,419)	$ 3,321	$ (148,423)
Weighted average common shares outstanding
Basic (in shares)	23,593,876	23,231,453	23,444,052	23,029,849
Diluted (in shares)	23,774,548	23,231,453	23,570,976	23,029,849
Net income (loss) from continuing operations per common share
Basic (in dollars per share)	$ 0.22	$ (6.30)	$ 0.64	$ (5.93)
Diluted (in dollars per share)	0.22	(6.30)	0.63	(5.93)
Net income (loss) from discontinued operations per common share
Basic (in dollars per share)	0.08	(0.43)	(0.50)	(0.52)
Diluted (in dollars per share)	0.08	(0.43)	(0.49)	(0.52)
Net income (loss) per common share
Basic (in dollars per share)	0.30	(6.73)	0.14	(6.44)
Diluted (in dollars per share)	$ 0.30	$ (6.73)	$ 0.14	$ (6.44)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017
Cash flows from operating activities:
Net income (loss)	$ 3,321	$ (148,423)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization of fixed and intangible assets	21,498	15,839
Impairment charge on goodwill	0	164,325
Impairment charges on intangible assets	8,174	0
Impairment charges on fixed assets	8,873	5,585
Loss on sale of FDC Vitamins, LLC	163	0
Amortization of deferred financing fees	365	458
Gain on extinguishment of debt	(16,229)	0
Amortization of debt discount on convertible notes	1,976	2,368
Deferred income taxes	10,136	(11,225)
Deferred rent	(1,842)	(1,465)
Equity compensation expense	931	2,710
Tax benefits on exercises of equity awards	705	747
Changes in operating assets and liabilities:
Accounts receivable	(971)	4,409
Inventories	19,558	12,852
Prepaid expenses and other current assets	1,398	(2,886)
Other long-term assets	(50)	25
Accounts payable	4,741	(9,109)
Accrued expenses and other current liabilities	3,354	1,343
Other long-term liabilities	186	521
Net cash provided by operating activities	66,287	38,074
Cash flows from investing activities:
Capital expenditures	(15,705)	(28,378)
Net proceeds on sale of FDC Vitamins, LLC	15,729	0
Trademarks and other intangible assets	(163)	(156)
Net cash used in investing activities	(139)	(28,534)
Cash flows from financing activities:
Borrowings under revolving credit facility	81,000	57,000
Repayments of borrowings under revolving credit facility	(90,000)	(65,000)
Purchases of convertible notes	(57,158)	0
Bank overdraft	327	(3,052)
Proceeds from exercises of common stock options	0	1,511
Issuance of shares under employee stock purchase plan	108	270
Purchases of treasury stock	(244)	(544)
Other financing activities	(219)	(566)
Net cash used in financing activities	(66,186)	(10,381)
Effect of exchange rate changes on cash and cash equivalents	1	11
Net decrease in cash and cash equivalents	(37)	(830)
Cash and cash equivalents beginning of period	1,947	2,833
Cash and cash equivalents end of period	1,910	2,003
Supplemental disclosures of cash flow information:
Interest paid	1,943	1,934
Income taxes (refunded) paid	(10,764)	6,588
Supplemental disclosures of non-cash investing activities:
Liability for purchases of property and equipment	5,988	10,017
Assets acquired under capital leases	0	891
Assets acquired under tenant incentives	$ 0	$ 2,986

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Vitamin Shoppe, Inc. (“ VSI ”), is incorporated in the State of Delaware, and through its wholly-owned subsidiary, Vitamin Shoppe Industries Inc. (“Subsidiary” or “Industries” together with VSI, the “Company”), is an omni-channel specialty retailer of nutritional products. Sales of both national brands and our own brands of vitamins, minerals, herbs, specialty supplements, sports nutrition and other health and wellness products (“VMS products”) are made through VSI-operated retail stores and the internet to customers located primarily in the United States. The consolidated financial statements as of June 30, 2018 and July 1, 2017 are unaudited. The consolidated balance sheet as of December 30, 2017 was derived from our audited financial statements and has been restated to reflect discontinued operations. Refer to Note 2., "Discontinued Operations" for additional information. As a result of the discontinued operations, the Company currently operates through one business segment. In addition, certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been omitted pursuant to such rules and regulations. The interim financial statements reflect all adjustments, which are, in the opinion of management, necessary for a fair presentation in conformity with GAAP. The interim financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Company's annual report on Form 10-K for the fiscal year ended December 30, 2017 , as filed with the Securities and Exchange Commission on February 27, 2018 (the “Fiscal 2017 Form 10-K”). The results of operations for the interim periods should not be considered indicative of results to be expected for the full year. The Company's fiscal year ends on the last Saturday in December. As used herein, the term "Fiscal Year" or "Fiscal" refers to a 52-week period, ending on the last Saturday in December. The results for the three and six months ended June 30, 2018 and July 1, 2017 are each based on 13-week and 26-week periods, respectively. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosures of contingent assets and liabilities at the date of the financial statements, and revenue and expenses during the reporting period. Actual results could differ from those estimates. Except as noted below, the Company has considered all new accounting pronouncements and has concluded that there are no new pronouncements that may have a material impact on its results of operations, financial condition, or cash flows, based on current information. In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update No. 2016-02 (“ASU 2016-02”), Leases (Topic 842). ASU 2016-02 was issued by the FASB to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The main difference between previous GAAP and Topic 842 is the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under previous GAAP. ASU 2016-02 will require modified retrospective application at the beginning of our first quarter of Fiscal 2019, but permits adoption in an earlier period. Although the Company is still evaluating ASU 2016-02, the Company currently expects this guidance will not have a material impact on its results of operations, however, this guidance will result in a significant increase to long-term assets and liabilities on the Company's balance sheet given the Company has a significant number of leases. The Company is in the process of implementing changes to its business processes, systems and controls to support the adoption of ASU 2016-02 in Fiscal 2019.

Discontinued Operations

Discontinued Operations	6 Months Ended
	Jun. 30, 2018
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations On May 7, 2018, the Company sold certain assets, including the Betancourt Nutrition® brand, and liabilities of FDC Vitamins, LLC d/b/a Nutri-Force Nutrition (“Nutri-Force”) to Arizona Nutritional Supplements, LLC (“ANS”). Proceeds from the sale, net of transaction costs, were approximately $15.7 million and are subject to a working capital adjustment. The Company recognized a pre-tax loss on the sale of Nutri-Force of $0.2 million . In connection with the sale, the parties executed a transition services agreement for an initial term of six months whereby the Company agreed to provide services to operate the manufacturing facilities in Miami Lakes, Florida and to transition the production of products to ANS facilities. In addition, the parties executed supply agreements in which the Company has agreed to purchase a total of $53.0 million annually of its private label products and Betancourt Nutrition® brand products from ANS for a term of five years. The results of operations of Nutri-Force for the three and six months ended June 30, 2018 are classified as discontinued operations in the consolidated statements of operations. The consolidated balance sheet as of December 30, 2017 and the statements of operations for the three and six months ended July 1, 2017 have been restated to reflect the discontinued operations. Reconciliation of the Carrying Amounts of Major Classes of Assets and Liabilities of the Discontinued Operation to Total Assets and Liabilities of the Disposal Group Classified as Held for Sale That Are Presented Separately in the Balance Sheet As of Carrying amounts of the major classes of assets included in discontinued operations: Accounts receivable $ 6,265 Inventories 16,200 Prepaid expenses and other current assets 160 Total current assets 22,625 Property and equipment, net 8,513 Intangible assets, net 8,378 Total noncurrent assets 16,891 Total assets of the disposal group classified as held for sale $ 39,516 Carrying amounts of the major classes of liabilities included in discontinued operations: Accounts payable $ 2,704 Accrued liabilities 2,633 Total current liabilities of the disposal group classified as held for sale $ 5,337 Reconciliation of the Major Line Items Constituting Loss of Discontinued Operations to the After-Tax Loss of Discontinued Operations That Are Presented in the Statements of Operations Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Major classes of line items constituting net loss on discontinued operations: Net sales (1) $ 4,875 $ 8,417 $ 10,426 $ 19,546 Cost of goods sold 3,340 17,303 7,339 28,600 Fixed assets impairment charges — 1,820 7,236 1,820 Gross profit (loss) 1,535 (10,706 ) (4,149 ) (10,874 ) Selling, general and administrative expenses 558 5,175 1,952 8,239 Intangible assets and fixed assets impairment charges — — 8,978 — Discontinued operations (gain) loss (2) (1,287 ) — 163 — Income (loss) before provision (benefit) for income taxes 2,264 (15,881 ) (15,242 ) (19,113 ) Provision (benefit) for income taxes 367 (5,878 ) (3,623 ) (7,211 ) Net income (loss) $ 1,897 $ (10,003 ) $ (11,619 ) $ (11,902 ) (1) Revenue related to the transition services agreement was $1.6 million during the three and six months ended June 30, 2018. (2) During the three months ended March 31, 2018, the Company recorded a charge of $1.5 million which represented the estimated loss on the sale of the discontinued operations based on the anticipated proceeds less estimated transaction costs. During the three months ended June 30, 2018, this estimated loss was reduced by $1.3 million resulting in a pre-tax loss on the sale of Nutri-Force of $0.2 million . Cash Flow Disclosures for Discontinued Operations Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Cash flows provided by (used in) operating activities $ (15,062 ) $ (1,012 ) $ (15,116 ) $ (896 ) Cash flows provided by (used in) investing activities $ 15,726 $ (528 ) $ 15,634 $ (879 ) Depreciation and amortization $ — $ 281 $ 769 $ 559 Capital expenditures $ 2 $ 528 $ 94 $ 879

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets The following table discloses the carrying value of all intangible assets (in thousands): June 30, 2018 December 30, 2017 Gross Carrying Amount Accumulated Amortization Accumulated Impairment Charges Net Gross Carrying Amount Accumulated Amortization Accumulated Impairment Charges Net Intangible assets Goodwill $ 243,269 $ — $ 243,269 $ — $ 243,269 $ — $ 243,269 $ — Tradenames – Indefinite-lived 68,405 — 59,405 9,000 68,405 — 59,405 9,000 Tradenames – Definite-lived 5,555 3,510 — 2,045 5,392 3,352 — 2,040 $ 317,229 $ 3,510 $ 302,674 $ 11,045 $ 317,066 $ 3,352 $ 302,674 $ 11,040 The useful life of the Company’s definite-lived intangible assets is 10 years. The expected amortization expense on definite-lived intangible assets on the Company’s consolidated balance sheet at June 30, 2018 , is as follows (in thousands): Remainder of Fiscal 2018 $ 157 Fiscal 2019 313 Fiscal 2020 313 Fiscal 2021 313 Fiscal 2022 313 Thereafter 636 $ 2,045

Accrued Expenses and Other Curr

Accrued Expenses and Other Current Liabilities	6 Months Ended
	Jun. 30, 2018
Payables and Accruals [Abstract]
Accrued Expenses and Other Current Liabilities	Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consist of the following (in thousands): June 30, 2018 December 30, 2017 Accrued salaries and related expenses $ 19,912 $ 18,094 Sales tax payable and related expenses 6,819 7,088 Deferred sales 8,196 5,710 Other accrued expenses 33,751 31,753 $ 68,678 $ 62,645

Credit Arrangements

Credit Arrangements	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Credit Arrangements	Credit Arrangements Convertible Senior Notes due 2020 On December 9, 2015, the Company issued $143.8 million of its 2.25% Convertible Senior Notes due 2020 (the “Convertible Notes”). The Convertible Notes are senior unsecured obligations of VSI. Interest on the Convertible Notes is payable on June 1 and December 1 of each year until their maturity date of December 1, 2020. The Company may not redeem the Convertible Notes prior to the maturity date. Prior to July 1, 2020, the Convertible Notes will be convertible only under certain circumstances. The Convertible Notes are convertible at an initial conversion rate of 25.1625 shares of the Company’s common stock per $1,000 principal amount of the Convertible Notes, which is equivalent to a conversion price of approximately $39.74 . The conversion rate is subject to adjustment in some events but will not be adjusted for any accrued and unpaid interest. In addition, following certain corporate events that occur prior to the maturity date, the Company is required to increase, in certain circumstances, the conversion rate for a holder who elects to convert its Convertible Notes in connection with such a corporate event including customary conversion rate adjustments in connection with a “make-whole fundamental change” as defined. Upon conversion, the Company may satisfy its conversion obligation by paying or delivering, as applicable, cash, shares of its common stock or a combination of cash and shares of its common stock, at its election. The Company allocated the principal amount of the Convertible Notes between its liability and equity components (see table below). The carrying amount of the liability component was determined by measuring the fair value of a similar debt instrument of similar credit quality and maturity that did not have the conversion feature. The carrying amount of the equity component, representing the embedded conversion option, was determined by deducting the fair value of the liability component from the principal amount of the Convertible Notes as a whole. The equity component was recorded to additional paid-in capital and is not remeasured as long as it continues to meet the conditions for equity classification. The excess of the principal amount of the Convertible Notes over the carrying amount of the liability component was recorded as a debt discount, and is being amortized to interest expense using an effective interest rate of 3.8% over the term of the Convertible Notes. The Company allocated the total amount of transaction costs incurred to the liability and equity components using the same proportions as the proceeds from the Convertible Notes. Transaction costs attributable to the liability component were recorded as a direct deduction from the liability component of the Convertible Notes, and are being amortized to interest expense using the effective interest method through the maturity date. Transaction costs attributable to the equity component were netted with the equity component of the Convertible Notes in additional paid-in capital. On March 27, 2018, the Company repurchased $45.4 million in aggregate principal amount of its Convertible Notes for an aggregate purchase price of $34.0 million , which includes accrued interest of $0.3 million . The repurchase was funded through borrowings under the Company's Revolving Credit Facility. The gain on extinguishment of the repurchased Convertible Notes was $12.5 million . On June 1, 2018, the Company repurchased $29.9 million in aggregate principal amount of its Convertible Notes for an aggregate purchase price of $23.1 million , which includes a de minimis amount of accrued interest. The repurchase was funded through borrowings under the Company's Revolving Credit Facility. The gain on extinguishment of the repurchased Convertible Notes was $3.7 million . The Convertible Notes consist of the following components (in thousands): June 30, 2018 December 30, 2017 Liability component: Principal $ 68,439 $ 143,750 Conversion feature (17,685 ) (24,800 ) Liability portion of debt issuance costs (2,758 ) (3,802 ) Amortization 13,548 11,267 Net carrying amount $ 61,544 $ 126,415 Equity component: Conversion feature $ 18,908 $ 24,800 Equity portion of debt issuance costs (793 ) (793 ) Deferred taxes 941 941 Net carrying amount $ 19,056 $ 24,948 In connection with the issuance of the Convertible Notes, the Company entered into convertible note hedge transactions for which it paid an aggregate $26.4 million . In addition, the Company sold warrants for which it received aggregate proceeds of $13.0 million . The convertible note hedge transactions are expected generally to reduce potential dilution of the Company’s common stock upon any conversion of notes and/or offset any cash payments the Company is required to make in excess of the principal amount of converted notes. However, the warrant transaction could separately have a dilutive effect to the extent that the market value per share of the Company’s common stock exceeds the applicable strike price of the warrant transactions, which is approximately $52.99 at inception. As these transactions meet certain accounting criteria, the convertible note hedge and warrant transactions are recorded in stockholders’ equity, are not accounted for as derivatives and are not remeasured each reporting period. The net proceeds from the Convertible Notes and related transactions of $125.7 million , net of commissions and offering costs of $4.6 million , were used to repurchase shares of the Company’s common stock under the Company’s share repurchase programs. In connection with the repurchases of Convertible Notes, the convertible note hedge transactions and the warrant transaction noted above were reduced in ratable proportion to the face amount of Convertible Notes that were repurchased. The net proceeds received by the Company from these transactions were de minimis. Revolving Credit Facility As of June 30, 2018 and December 30, 2017 , the Company had $3.0 million and $12.0 million of borrowings outstanding on its Revolving Credit Facility (the "Revolving Credit Facility"), respectively. In May 2017, the Company executed an amendment to its Revolving Credit Facility, which provides for an extension of the maturity date to May 9, 2022, provided that the maturity date would be any day on or after September 2, 2020 only if the Company did not on any such day have enough liquidity to retire its Convertible Notes then outstanding, if any. The amendment also provides for a reduction of the interest rate under the Revolving Credit Facility, as noted below. Subject to the terms of the Revolving Credit Facility, the Company may borrow up to $90.0 million , with a Company option to increase the facility up to a total of $150.0 million . The availability under the Revolving Credit Facility is subject to a borrowing base calculated on the value of certain accounts receivable as well as certain inventory of the Company. The obligations thereunder are secured by a security interest in substantially all of the assets of the Company. Under the Revolving Credit Facility, VSI has guaranteed the Company’s obligations, and Industries and its wholly-owned subsidiaries have each guaranteed the obligations of the other respective entities. The Revolving Credit Facility provides for affirmative and negative covenants affecting the Company. The Revolving Credit Facility restricts, among other things, the Company’s ability to incur indebtedness, create or permit liens on the Company’s assets, declare or pay dividends and make certain other restricted payments, consolidate, merge or recapitalize, sell assets, make certain investments, loans or other advances, enter into transactions with affiliates, change our line of business, and restricts the types of hedging activities the Company can enter into. The largest amount borrowed during the six months ended June 30, 2018 and July 1, 2017 was $43.0 million and $38.0 million , respectively. The unused available line of credit under the Revolving Credit Facility at June 30, 2018 was $82.7 million . Borrowings under the Revolving Credit Facility accrue interest, at the Company’s option, at the rate per annum based on an “alternative base rate” plus 0.00% , 0.125% or 0.25% or the adjusted Eurodollar rate plus 1.00% , 1.125% or 1.25% , in each case with the highest spread applicable in the event that the average excess collateral availability under the Revolving Credit Facility is less than 33% of the borrowing base availability under the Revolving Credit Facility, the second highest spread applicable in the event that the average excess collateral availability under the Revolving Credit Facility is less than 66% and greater than or equal to 33% of the borrowing base availability under the Revolving Credit Facility and the lowest spread applicable in the event that the average excess collateral availability under the Revolving Credit Facility is greater than or equal to 66% of the borrowing base availability under the Revolving Credit Facility. The weighted average interest rate for the Revolving Credit Facility during the six months ended June 30, 2018 and July 1, 2017 was 2.81% and 2.13% , respectively. The commitment fee on the undrawn portion of the $90.0 million Revolving Credit Facility is 0.25% per annum. Interest expense, net for the three and six months ended June 30, 2018 and July 1, 2017 consists of the following (in thousands): Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Amortization of debt discount on Convertible Notes $ 769 $ 1,190 $ 1,976 $ 2,368 Interest on Convertible Notes 542 817 1,348 1,635 Amortization of deferred financing fees 145 220 365 458 Interest / fees on the Revolving Credit Facility and other interest 243 147 451 325 Interest expense, net $ 1,699 $ 2,374 $ 4,140 $ 4,786

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition The Company recognizes revenue from retail customers when merchandise is sold “at point of sale” in retail stores or upon delivery to a customer. Substantially all revenue from customers represents goods transferred at a point in time. The Company applied the modified retrospective method for the transition to FASB Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (Topic 606). The modified retrospective method requires application of the new revenue standard only to the current year financial statements (i.e., the financial statements for the year in which the new revenue standard is first implemented). Under the modified retrospective method, an entity records a cumulative-effect adjustment on the opening balance sheet to retained earnings. The opening adjustment to retained earnings is determined on the basis of the impact of the new revenue standard's application on contracts that were not completed as of the date of initial application. The Company did not record an opening adjustment to retained earnings as the impact of the application of the new revenue standard was de minimis. Disaggregation of Revenue The Company disaggregates revenue from contracts with customers into two categories, sales fulfilled in stores and direct to consumer sales. The Company determines that disaggregating revenue into these categories achieves the disclosure objective to depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. The following table contains net sales by fulfillment category (in thousands): Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Net sales: Sales fulfilled in stores $ 254,875 $ 268,484 $ 512,291 $ 542,307 Direct to consumer sales 38,228 27,936 76,776 59,885 Net sales $ 293,103 $ 296,420 $ 589,067 $ 602,192 The following table represents net sales by major product category (in thousands): Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Product Category Vitamins, Minerals, Herbs and Homeopathy $ 83,997 $ 82,114 $ 172,801 $ 168,760 Sports Nutrition 89,669 94,834 179,008 192,094 Specialty Supplements 75,986 75,837 151,408 153,802 Other 42,840 43,098 84,622 86,377 292,492 295,883 587,839 601,033 Delivery Revenue 611 537 1,228 1,159 Total net sales $ 293,103 $ 296,420 $ 589,067 $ 602,192 Delivery revenue represents shipping fees billed to customers which are included in net sales in the consolidated statements of operations. Contract Balances Receivables primarily consist of amounts due from debit and credit card processors and amounts due from third-party e-commerce marketplaces. These receivables balances are included in prepaid expenses and other current assets in the consolidated balance sheets. For the periods presented, the Company does not have contract assets. A contract asset would exist when an entity has a contract with a customer for which revenue has been recognized but payment is contingent on a future event other than the passage of time (e.g., unbilled receivables). Contract liabilities primarily include deferred sales related to the loyalty program, a liability for future gift card redemptions and a liability for sales in transit. These liabilities are included in accrued expenses and other current liabilities in the consolidated balance sheets. The opening and closing balances of the Company’s receivables and contract liabilities are as follows (in thousands): Receivables Contract Liabilities Balances as of December 30, 2017 $ 10,937 $ 7,511 Increase 1,055 899 Balances as of March 31, 2018 11,992 8,410 Increase / (Decrease) (560 ) 1,013 Balances as of June 30, 2018 $ 11,432 $ 9,423 Balances as of December 31, 2016 $ 11,012 $ 6,901 Increase / (Decrease) 744 (503 ) Balances as of April 1, 2017 11,756 6,398 Increase / (Decrease) (672 ) 983 Balances as of July 1, 2017 $ 11,084 $ 7,381 The amounts of revenue recognized during the three month periods ended March 31, 2018 and April 1, 2017 that were included in the opening contract liability balances were $6.5 million and $6.0 million , respectively. The amounts of revenue recognized during the three month periods ended June 30, 2018 and July 1, 2017 that were included in the opening contract liability balances were $6.4 million and $5.6 million , respectively. This revenue consists primarily of loyalty point redemptions, the delivery of sales in transit and gift card redemptions. Performance Obligations For retail sales, the performance obligation is the transfer of retail merchandise to the customer at the retail store or at the time of delivery to the customer. Variable consideration for retail sales is primarily related to our loyalty program. Under the loyalty program, sales are deferred at the time points are earned based on the value of points that are projected to be redeemed, which are based on historical redemption data and current trends. The Company records a liability in the period points are earned with a corresponding reduction of sales. Under the current program, loyalty points are earned each calendar quarter and must be redeemed within the subsequent calendar quarter or they expire. During Fiscal 2018, the Company is testing potential changes to the loyalty program, such as extending the redemption period on loyalty points, in order to improve the effectiveness of the program. Performance obligations are typically satisfied at the point in time when the Company transfers control of the merchandise to the customer and at such point in time the customer is able to direct the use of and obtains substantially all of the benefits from the merchandise transferred to the customer. For retail sales, payment is due at the time the customer purchases retail merchandise. For retail sales, the Company establishes a provision for estimated returns of retail products, based on historical information. The Company considers shipping and handling costs as fulfillment costs, and does not consider such activities as a separate performance obligation. When applicable, the Company is responsible for shipment and delivery of the merchandise, even when using a third-party shipping company. Significant Judgments and Estimates The Company considers control of retail products to have transferred upon delivery, at the retail location or the place of delivery, because the Company has a present right to payment at that time, the customer has legal title to the products, the Company has transferred physical possession of the products, and the customer has significant risks and rewards of ownership of the products. Under the loyalty program, the value of points projected to be redeemed is dependent on the estimated redemption rates which are based on both historical information and current trends. For retail sales in transit, the Company defers the recognition of revenue based on an estimate of the respective anticipated timing of delivery. Practical Expedients The Company has elected to use the following practical expedients affecting the measurement and recognition of revenue: Significant financing component - As substantially all of the Company’s contracts with customers have an original duration of one year or less, the Company uses the practical expedient applicable to such contacts and does not consider the time value of money. Sales taxes - Consistent with prior periods, sales taxes collected from customers are presented on a net basis and as such are excluded from revenue. Contract costs - Due to the short term duration of the Company’s contracts with customers, such incremental costs of obtaining or fulfilling a contract are recognized as an expense when incurred since the amortization period of the asset that the Company otherwise would have recognized is one year or less. Portfolio approach - For its retail contracts with customers, the Company has applied the new revenue standard to a portfolio of contracts with similar characteristics since the Company reasonably expects that the effects on the financial statements of applying this guidance to the portfolio would not differ materially from applying this guidance to the individual contracts within that portfolio. Disclosure of remaining performance obligations - Due to the short duration of its contracts with customers of one year or less, the Company has elected not to disclose the information regarding the remaining performance obligations as of the end of each reporting period or when the Company expects to recognize this revenue.

Stock Based Compensation

Stock Based Compensation	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Based Compensation	Stock Based Compensation Equity Incentive Plans – In June 2018, the Company's shareholders approved the 2018 Long-term Incentive Plan (the "2018 Plan") to provide stock based compensation to certain directors, officers, consultants and employees of the Company. The 2018 Plan replaces the two previous plans, the 2006 Stock Option Plan and the Vitamin Shoppe 2009 Equity Incentive Plan, as amended and restated effective April 6, 2012. Upon adoption of the 2018 Plan, 1,410,928 additional shares were authorized to grant under this plan. As of June 30, 2018 , there were 2,800,643 shares available to grant under the 2018 Plan which includes 240,900 shares currently held by the Company as treasury stock. The following table summarizes restricted shares for the 2018 Plan as of June 30, 2018 and changes during the six month period then ended: Number of Unvested Restricted Shares Weighted Average Grant Date Fair Value Unvested at December 30, 2017 724,104 $ 18.65 Granted 280,688 $ 4.46 Vested (140,809 ) $ 22.30 Canceled/forfeited (281,836 ) $ 16.31 Unvested at June 30, 2018 582,147 $ 12.06 The total intrinsic value of restricted shares vested during the six months ended June 30, 2018 and July 1, 2017 was $0.6 million and $1.4 million , respectively. The following table summarizes stock options for the 2018 Plan as of June 30, 2018 and changes during the six month period then ended: Number of Options Weighted Average Exercise Price Weighted Average Remaining Contractual Life (years) Aggregate Intrinsic Value (in thousands) Outstanding at December 30, 2017 308,888 $ 27.74 Granted 141,777 $ 4.65 Exercised — $ — Canceled/forfeited (91,135 ) $ 20.94 Outstanding at June 30, 2018 359,530 $ 20.36 6.22 $ 326 Vested or expected to vest at June 30, 2018 341,260 $ 20.93 6.06 Vested and exercisable at June 30, 2018 176,832 $ 31.39 3.15 $ — No options were exercised during the six months ended June 30, 2018 . The total intrinsic value of options exercised during the six months ended July 1, 2017 was $0.7 million . The cash received from options exercised during the six months ended July 1, 2017 was $1.5 million . Stock options were not granted during the six months ended July 1, 2017 . The weighted-average grant date fair value of stock options during the six months ended June 30, 2018 was $1.76 . The fair value of each option grant was estimated on the date of grant using the Monte Carlo option-pricing model, because these awards contain a market condition based on the achievement of predetermined targets related to the share price of our common stock, with the following assumptions: Three and Six Months Ended June 30, 2018 Expected dividend yield 0.0 % Weighted average expected volatility 42.61 % Weighted average risk-free interest rate 2.54 % Expected holding period 6.02 years The following table summarizes performance share units for the 2018 Plan as of June 30, 2018 and changes during the six month period then ended: Number of Unvested Performance Share Units Weighted Average Grant Date Fair Value Unvested at December 30, 2017 288,365 $ 22.43 Granted 531,211 $ 4.66 Vested — $ — Canceled/forfeited (400,353 ) $ 11.59 Unvested at June 30, 2018 419,223 $ 10.26 Performance share units granted during the six months ended June 30, 2018 shall vest on December 26, 2020 if the performance criteria are achieved. Performance share units can vest at a range of 0% to 150% based on the achievement of pre-established performance targets. The following table summarizes restricted share units for the 2018 Plan as of June 30, 2018 and changes during the six month period then ended: Number of Unvested Weighted Unvested at December 30, 2017 39,708 $ 11.90 Granted 4,413 $ 4.85 Vested (32,353 ) $ 11.90 Canceled/forfeited — $ — Unvested at June 30, 2018 11,768 $ 9.26 The total intrinsic value of restricted share units vested during the six months ended June 30, 2018 and July 1, 2017 was $0.2 million in both periods. Compensation expense attributable to stock based compensation for the three and six months ended June 30, 2018 was approximately $0.1 million and $0.9 million , respectively, and for the three and six months ended July 1, 2017 was approximately $1.1 million and $2.7 million , respectively. As of June 30, 2018 , the remaining unrecognized stock based compensation expense for non-vested stock options, restricted shares, performance share units and restricted share units to be expensed in future periods is $4.7 million , and the related weighted-average period over which it is expected to be recognized is 1.6 years. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. The Company estimates forfeitures based on its historical forfeiture rate since the inception of granting stock based awards. The estimated value of future forfeitures for stock options, restricted shares, performance share units and restricted share units as of June 30, 2018 is approximately $0.5 million . Treasury Stock – As part of the Company’s equity incentive plan, the Company makes required tax payments on behalf of employees as their restricted shares vest. The Company withholds the number of vested shares having a value on the date of vesting equal to the minimum statutory tax obligation. The shares withheld are recorded as treasury shares. During the six months ended June 30, 2018 , the Company purchased 55,439 shares in settlement of employees’ tax obligations for a total of $0.2 million . The Company accounts for treasury stock using the cost method. 240,900 treasury shares are available to grant under the Company’s equity incentive plan.

Restructuring Costs

Restructuring Costs	6 Months Ended
	Jun. 30, 2018
Restructuring and Related Activities [Abstract]
Restructuring Costs	Restructuring Costs Closing of Distribution Center In August 2017, the Company announced its intention to close the North Bergen, New Jersey distribution center prior to or by the August 31, 2018 lease expiration. The transition of distribution operations to the Company's other distribution centers was substantially completed during Fiscal 2017. Costs related to this closure, including occupancy, severance and other expenses, for the three and six months ended June 30, 2018 were $0.4 million and $2.7 million , respectively, of which approximately $0.1 million and $1.8 million , respectively, is included in cost of goods sold and approximately $0.4 million and $0.9 million , respectively, is included in selling, general and administrative expenses in the consolidated statements of operations. As of June 30, 2018, the Company had no remaining liabilities related to the closing of the North Bergen, New Jersey distribution center.

Advertising Costs

Advertising Costs	6 Months Ended
	Jun. 30, 2018
Other Income and Expenses [Abstract]
Advertising Costs	Advertising Costs The costs of advertising for online marketing arrangements, direct mail, magazines and radio are expensed as incurred, or the first time the advertising takes place. Advertising expense was $6.9 million and $7.0 million for the three months ended June 30, 2018 and July 1, 2017 , respectively, and $13.4 million and $12.9 million for the six months ended June 30, 2018 and July 1, 2017 , respectively.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Tax Cut and Jobs Act of 2017 (“U.S. Tax Reform”) was enacted on December 22, 2017, reducing the statutory federal income tax rate from 35% to 21%, effective January 1, 2018. As required, the Company determined a reasonable estimate for certain effects of U.S. Tax Reform and recorded that estimate as a provisional amount. Due to the Company’s deferred tax position being a net asset, the provisional remeasurement of the deferred tax assets and liabilities resulted in a $15.3 million discrete tax expense which lowered the effective tax rate by 5.6% in Fiscal 2017. Our federal income tax expense for periods beginning in Fiscal 2018 is based on the new tax rate. The provisional remeasurement amount is anticipated to change as data becomes available allowing more accurate scheduling of the deferred tax assets and liabilities primarily related to depreciable assets, inventory, employee compensation and commissions. There have been no updates to the provisional amounts during the six months ended June 30, 2018. Additionally on December 22, 2017, the Securities and Exchange Commission staff issued Staff Accounting Bulletin No. 118, which addresses how a company recognizes provisional amounts when a company does not have the necessary information available, prepared or analyzed (including computations) in reasonable detail to complete its accounting for the effect of the changes in the U.S. Tax Reform. The measurement period ends when a company has obtained, prepared and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. As such, the Company is reporting the impacts of the U.S. Tax Reform provisionally based upon reasonable estimates. As of June 30, 2018 the impacts are not yet finalized as they are dependent on factors and analysis not yet known or fully completed, including but not limited to, depreciation, additional effect of the rate change on the ending deferred balances and the issuance of additional guidance, as well as our ongoing analysis of the U.S Tax Reform.

Net Income (Loss) Per Share

Net Income (Loss) Per Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	Net Income (Loss) Per Share The Company’s basic net income (loss) per share excludes the dilutive effect of stock options, unvested restricted shares, unvested performance share units, unvested restricted share units and warrants. It is based upon the weighted average number of common shares outstanding during the period divided into net income (loss). Diluted net income (loss) per share reflects the potential dilution that would occur if securities or other contracts to issue common stock were exercised or converted into common stock. Stock options, unvested restricted shares, unvested performance share units, unvested restricted share units and warrants are included as potential dilutive securities for the periods applicable, using the treasury stock method to the extent dilutive. The components of the calculation of basic net income (loss) per common share and diluted net income (loss) per common share are as follows (in thousands except share and per share data): Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Numerator: Net income (loss) from continuing operations $ 5,283 $ (146,416 ) $ 14,940 $ (136,521 ) Net income (loss) from discontinued operations 1,897 (10,003 ) (11,619 ) (11,902 ) Net income (loss) $ 7,180 $ (156,419 ) $ 3,321 $ (148,423 ) Denominator: Basic weighted average common shares outstanding 23,593,876 23,231,453 23,444,052 23,029,849 Effect of dilutive securities (a): Stock options — — — — Restricted shares 95,330 — 80,796 — Performance share units 68,214 — 34,145 — Restricted share units 17,128 — 11,983 — Diluted weighted average common shares outstanding 23,774,548 23,231,453 23,570,976 23,029,849 Basic net income (loss) from continuing operations per common share $ 0.22 $ (6.30 ) $ 0.64 $ (5.93 ) Diluted net income (loss) from continuing operations per common share $ 0.22 $ (6.30 ) $ 0.63 $ (5.93 ) Basic net income (loss) from discontinued operations per common share $ 0.08 $ (0.43 ) $ (0.50 ) $ (0.52 ) Diluted net income (loss) from discontinued operations per common share $ 0.08 $ (0.43 ) $ (0.49 ) $ (0.52 ) Basic net income (loss) per common share $ 0.30 $ (6.73 ) $ 0.14 $ (6.44 ) Diluted net income (loss) per common share $ 0.30 $ (6.73 ) $ 0.14 $ (6.44 ) (a) For the three and six months ended July 1, 2017, due to a loss for the period, no incremental shares are included because the effect would be anti-dilutive. Securities for the three months ended June 30, 2018 and July 1, 2017 in the amount of 518,214 shares and 791,633 shares, respectively, have been excluded from the above calculation as they were anti-dilutive. Securities for the six months ended June 30, 2018 and July 1, 2017 in the amount of 975,634 shares and 418,600 shares, respectively, have been excluded from the above calculation as they were anti-dilutive. The Company has the intent and ability to settle the principal portion of its Convertible Notes in cash, and as such, has applied the treasury stock method, which has resulted in the underlying convertible shares, and related warrants, being anti-dilutive for the three and six months ended June 30, 2018 and July 1, 2017 as the Company’s average stock price from the date of issuance of the Convertible Notes through June 30, 2018 was less than the conversion price as well as less than the strike price of the warrant transaction. Refer to Note 5., "Credit Arrangements" for additional information on the Convertible Notes.

Share Repurchase Programs

Share Repurchase Programs	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Share Repurchase Programs	Share Repurchase Programs Beginning in August 2014, the Company’s board of directors approved share repurchase programs that enable the Company to purchase up to an aggregate of $370 million of its shares of common stock and / or its Convertible Notes, from time to time. As of June 30, 2018 , 8,064,325 shares of common stock pursuant to these programs, and 75,311 Convertible Notes, have been repurchased for a total of $327.1 million . There is approximately $42.9 million remaining in this program which expires on November 22, 2018. The repurchase programs do not obligate the Company to acquire any specific number of securities and may be suspended, terminated or modified at any time for any reason, including market conditions, the cost of repurchasing securities, the availability of alternative investment opportunities, liquidity, restrictions under the Company's credit agreement, applicable law and other factors deemed appropriate. No shares of the Company were repurchased under these programs during the three and six month periods ended June 30, 2018 and July 1, 2017 . During Fiscal 2018, the Company repurchased $75.3 million in aggregate principal amount of its Convertible Notes for an aggregate purchase price of $57.2 million , which includes accrued interest of $0.3 million . Refer to Note 5., "Credit Arrangements" for additional information.

Legal Proceedings

Legal Proceedings	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings	Legal Proceedings The Company is party to various lawsuits arising from time to time in the normal course of business, some of which are covered by insurance. Although the impact of the final resolution of these matters on the Company's financial condition, results of operations or cash flows is not known, management does not believe that the resolution of these lawsuits will have a material adverse effect on the financial condition, results of operations or liquidity of the Company. In addition, on or about August 22, 2017, a federal securities class action suit was filed in the United States District Court in the District of New Jersey against Vitamin Shoppe and certain officers and directors on behalf of purchasers of Vitamin Shoppe common stock between March 1, 2017 and August 6, 2017. The lawsuit sought remedies under the Securities Exchange Act of 1934, including monetary damages, alleging that the defendants made false and misleading statements regarding the Company's reported goodwill, initiatives designed to improve the Company's financial performance, the Company’s profitability trends, and its financial results. On April 26, 2018, the court appointed the lead plaintiffs. On July 14, 2018, the appointed lead plaintiffs voluntarily dismissed the case without prejudice.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The fair value hierarchy requires the categorization of assets and liabilities into three levels based upon the assumptions (inputs) used to price the assets or liabilities. Level 1 provides the most reliable measure of fair value, while Level 3 generally requires significant management judgment. The three levels are defined as follows: • Level 1: Unadjusted quoted prices in active markets for identical assets and liabilities. • Level 2: Observable inputs other than those included in Level 1. For example, quoted prices for similar assets or liabilities in active markets or quoted prices for identical assets or liabilities in inactive markets. • Level 3: Unobservable inputs reflecting management’s own assumptions about the inputs used in pricing the asset or liability. The Company’s financial instruments include cash, accounts receivable, accounts payable, contract liabilities and its Revolving Credit Facility. The Company believes that the recorded values of these financial instruments approximate their fair values due to their nature and respective durations. The Company's financial instruments also include its Convertible Notes (in thousands): June 30, 2018 December 30, 2017 Fair Value $ 52,979 $ 91,612 Carrying Value (1) 61,544 126,415 (1) Represents the net carrying amount of the liability component of the Convertible Notes. The Company repurchased a portion of its Convertible Notes during the three and six months ended June 30, 2018. Refer to Note 5., "Credit Arrangements" for additional information. The fair value of the Convertible Notes was determined based on inputs that are observable in the market or that could be derived from, or corroborated with, observable market data, including the trading price of the Company’s Convertible Notes, when available, the Company’s stock price and interest rates based on similar debt issued by parties with credit ratings similar to the Company (Level 1 or 2). Intangible assets and fixed assets are measured at fair value on a non-recurring basis, that is, the assets are subject to fair value adjustments in certain circumstances such as when there is evidence of impairment. These measures of fair value, and related inputs, are considered Level 3 measures under the fair value hierarchy.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Use of Estimates	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosures of contingent assets and liabilities at the date of the financial statements, and revenue and expenses during the reporting period. Actual results could differ from those estimates.
New Accounting Pronouncements	Except as noted below, the Company has considered all new accounting pronouncements and has concluded that there are no new pronouncements that may have a material impact on its results of operations, financial condition, or cash flows, based on current information. In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update No. 2016-02 (“ASU 2016-02”), Leases (Topic 842). ASU 2016-02 was issued by the FASB to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The main difference between previous GAAP and Topic 842 is the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under previous GAAP. ASU 2016-02 will require modified retrospective application at the beginning of our first quarter of Fiscal 2019, but permits adoption in an earlier period. Although the Company is still evaluating ASU 2016-02, the Company currently expects this guidance will not have a material impact on its results of operations, however, this guidance will result in a significant increase to long-term assets and liabilities on the Company's balance sheet given the Company has a significant number of leases. The Company is in the process of implementing changes to its business processes, systems and controls to support the adoption of ASU 2016-02 in Fiscal 2019.

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2018
Discontinued Operations and Disposal Groups [Abstract]
Reconciliation of Balance Sheet, Statement of Operations, and Cash Flow Disclosures	Reconciliation of the Carrying Amounts of Major Classes of Assets and Liabilities of the Discontinued Operation to Total Assets and Liabilities of the Disposal Group Classified as Held for Sale That Are Presented Separately in the Balance Sheet As of Carrying amounts of the major classes of assets included in discontinued operations: Accounts receivable $ 6,265 Inventories 16,200 Prepaid expenses and other current assets 160 Total current assets 22,625 Property and equipment, net 8,513 Intangible assets, net 8,378 Total noncurrent assets 16,891 Total assets of the disposal group classified as held for sale $ 39,516 Carrying amounts of the major classes of liabilities included in discontinued operations: Accounts payable $ 2,704 Accrued liabilities 2,633 Total current liabilities of the disposal group classified as held for sale $ 5,337 Reconciliation of the Major Line Items Constituting Loss of Discontinued Operations to the After-Tax Loss of Discontinued Operations That Are Presented in the Statements of Operations Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Major classes of line items constituting net loss on discontinued operations: Net sales (1) $ 4,875 $ 8,417 $ 10,426 $ 19,546 Cost of goods sold 3,340 17,303 7,339 28,600 Fixed assets impairment charges — 1,820 7,236 1,820 Gross profit (loss) 1,535 (10,706 ) (4,149 ) (10,874 ) Selling, general and administrative expenses 558 5,175 1,952 8,239 Intangible assets and fixed assets impairment charges — — 8,978 — Discontinued operations (gain) loss (2) (1,287 ) — 163 — Income (loss) before provision (benefit) for income taxes 2,264 (15,881 ) (15,242 ) (19,113 ) Provision (benefit) for income taxes 367 (5,878 ) (3,623 ) (7,211 ) Net income (loss) $ 1,897 $ (10,003 ) $ (11,619 ) $ (11,902 ) (1) Revenue related to the transition services agreement was $1.6 million during the three and six months ended June 30, 2018. (2) During the three months ended March 31, 2018, the Company recorded a charge of $1.5 million which represented the estimated loss on the sale of the discontinued operations based on the anticipated proceeds less estimated transaction costs. During the three months ended June 30, 2018, this estimated loss was reduced by $1.3 million resulting in a pre-tax loss on the sale of Nutri-Force of $0.2 million . Cash Flow Disclosures for Discontinued Operations Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Cash flows provided by (used in) operating activities $ (15,062 ) $ (1,012 ) $ (15,116 ) $ (896 ) Cash flows provided by (used in) investing activities $ 15,726 $ (528 ) $ 15,634 $ (879 ) Depreciation and amortization $ — $ 281 $ 769 $ 559 Capital expenditures $ 2 $ 528 $ 94 $ 879

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill and Intangible Assets	The following table discloses the carrying value of all intangible assets (in thousands): June 30, 2018 December 30, 2017 Gross Carrying Amount Accumulated Amortization Accumulated Impairment Charges Net Gross Carrying Amount Accumulated Amortization Accumulated Impairment Charges Net Intangible assets Goodwill $ 243,269 $ — $ 243,269 $ — $ 243,269 $ — $ 243,269 $ — Tradenames – Indefinite-lived 68,405 — 59,405 9,000 68,405 — 59,405 9,000 Tradenames – Definite-lived 5,555 3,510 — 2,045 5,392 3,352 — 2,040 $ 317,229 $ 3,510 $ 302,674 $ 11,045 $ 317,066 $ 3,352 $ 302,674 $ 11,040
Expected Amortization Expense on Definite-Lived Intangible Assets	The expected amortization expense on definite-lived intangible assets on the Company’s consolidated balance sheet at June 30, 2018 , is as follows (in thousands): Remainder of Fiscal 2018 $ 157 Fiscal 2019 313 Fiscal 2020 313 Fiscal 2021 313 Fiscal 2022 313 Thereafter 636 $ 2,045

Accrued Expenses and Other Cu23

Accrued Expenses and Other Current Liabilities (Tables)	6 Months Ended
	Jun. 30, 2018
Payables and Accruals [Abstract]
Components of Accrued Expenses and Other Current Liabilities	Accrued expenses and other current liabilities consist of the following (in thousands): June 30, 2018 December 30, 2017 Accrued salaries and related expenses $ 19,912 $ 18,094 Sales tax payable and related expenses 6,819 7,088 Deferred sales 8,196 5,710 Other accrued expenses 33,751 31,753 $ 68,678 $ 62,645

Credit Arrangements (Tables)

Credit Arrangements (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Components of Convertible Notes	The Convertible Notes consist of the following components (in thousands): June 30, 2018 December 30, 2017 Liability component: Principal $ 68,439 $ 143,750 Conversion feature (17,685 ) (24,800 ) Liability portion of debt issuance costs (2,758 ) (3,802 ) Amortization 13,548 11,267 Net carrying amount $ 61,544 $ 126,415 Equity component: Conversion feature $ 18,908 $ 24,800 Equity portion of debt issuance costs (793 ) (793 ) Deferred taxes 941 941 Net carrying amount $ 19,056 $ 24,948
Components of Interest Expense, Net	Interest expense, net for the three and six months ended June 30, 2018 and July 1, 2017 consists of the following (in thousands): Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Amortization of debt discount on Convertible Notes $ 769 $ 1,190 $ 1,976 $ 2,368 Interest on Convertible Notes 542 817 1,348 1,635 Amortization of deferred financing fees 145 220 365 458 Interest / fees on the Revolving Credit Facility and other interest 243 147 451 325 Interest expense, net $ 1,699 $ 2,374 $ 4,140 $ 4,786

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table contains net sales by fulfillment category (in thousands): Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Net sales: Sales fulfilled in stores $ 254,875 $ 268,484 $ 512,291 $ 542,307 Direct to consumer sales 38,228 27,936 76,776 59,885 Net sales $ 293,103 $ 296,420 $ 589,067 $ 602,192 The following table represents net sales by major product category (in thousands): Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Product Category Vitamins, Minerals, Herbs and Homeopathy $ 83,997 $ 82,114 $ 172,801 $ 168,760 Sports Nutrition 89,669 94,834 179,008 192,094 Specialty Supplements 75,986 75,837 151,408 153,802 Other 42,840 43,098 84,622 86,377 292,492 295,883 587,839 601,033 Delivery Revenue 611 537 1,228 1,159 Total net sales $ 293,103 $ 296,420 $ 589,067 $ 602,192
Schedule of Opening and Closing Balances of Receivables and Contract Liabilities	The opening and closing balances of the Company’s receivables and contract liabilities are as follows (in thousands): Receivables Contract Liabilities Balances as of December 30, 2017 $ 10,937 $ 7,511 Increase 1,055 899 Balances as of March 31, 2018 11,992 8,410 Increase / (Decrease) (560 ) 1,013 Balances as of June 30, 2018 $ 11,432 $ 9,423 Balances as of December 31, 2016 $ 11,012 $ 6,901 Increase / (Decrease) 744 (503 ) Balances as of April 1, 2017 11,756 6,398 Increase / (Decrease) (672 ) 983 Balances as of July 1, 2017 $ 11,084 $ 7,381

Stock Based Compensation (Table

Stock Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Stock Options	The following table summarizes stock options for the 2018 Plan as of June 30, 2018 and changes during the six month period then ended: Number of Options Weighted Average Exercise Price Weighted Average Remaining Contractual Life (years) Aggregate Intrinsic Value (in thousands) Outstanding at December 30, 2017 308,888 $ 27.74 Granted 141,777 $ 4.65 Exercised — $ — Canceled/forfeited (91,135 ) $ 20.94 Outstanding at June 30, 2018 359,530 $ 20.36 6.22 $ 326 Vested or expected to vest at June 30, 2018 341,260 $ 20.93 6.06 Vested and exercisable at June 30, 2018 176,832 $ 31.39 3.15 $ —
Summary of Fair Value Option Grant Using Monte Carlo Option-Pricing Model	The fair value of each option grant was estimated on the date of grant using the Monte Carlo option-pricing model, because these awards contain a market condition based on the achievement of predetermined targets related to the share price of our common stock, with the following assumptions: Three and Six Months Ended June 30, 2018 Expected dividend yield 0.0 % Weighted average expected volatility 42.61 % Weighted average risk-free interest rate 2.54 % Expected holding period 6.02 years
Summary of Performance Share Units	The following table summarizes performance share units for the 2018 Plan as of June 30, 2018 and changes during the six month period then ended: Number of Unvested Performance Share Units Weighted Average Grant Date Fair Value Unvested at December 30, 2017 288,365 $ 22.43 Granted 531,211 $ 4.66 Vested — $ — Canceled/forfeited (400,353 ) $ 11.59 Unvested at June 30, 2018 419,223 $ 10.26
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Restricted Shares and Restricted Share Units	The following table summarizes restricted shares for the 2018 Plan as of June 30, 2018 and changes during the six month period then ended: Number of Unvested Restricted Shares Weighted Average Grant Date Fair Value Unvested at December 30, 2017 724,104 $ 18.65 Granted 280,688 $ 4.46 Vested (140,809 ) $ 22.30 Canceled/forfeited (281,836 ) $ 16.31 Unvested at June 30, 2018 582,147 $ 12.06
Restricted share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Restricted Shares and Restricted Share Units	The following table summarizes restricted share units for the 2018 Plan as of June 30, 2018 and changes during the six month period then ended: Number of Unvested Weighted Unvested at December 30, 2017 39,708 $ 11.90 Granted 4,413 $ 4.85 Vested (32,353 ) $ 11.90 Canceled/forfeited — $ — Unvested at June 30, 2018 11,768 $ 9.26

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Calculation of Basic and Diluted Net Income (Loss) Per Common Share	The components of the calculation of basic net income (loss) per common share and diluted net income (loss) per common share are as follows (in thousands except share and per share data): Three Months Ended Six Months Ended June 30, 2018 July 1, 2017 June 30, 2018 July 1, 2017 Numerator: Net income (loss) from continuing operations $ 5,283 $ (146,416 ) $ 14,940 $ (136,521 ) Net income (loss) from discontinued operations 1,897 (10,003 ) (11,619 ) (11,902 ) Net income (loss) $ 7,180 $ (156,419 ) $ 3,321 $ (148,423 ) Denominator: Basic weighted average common shares outstanding 23,593,876 23,231,453 23,444,052 23,029,849 Effect of dilutive securities (a): Stock options — — — — Restricted shares 95,330 — 80,796 — Performance share units 68,214 — 34,145 — Restricted share units 17,128 — 11,983 — Diluted weighted average common shares outstanding 23,774,548 23,231,453 23,570,976 23,029,849 Basic net income (loss) from continuing operations per common share $ 0.22 $ (6.30 ) $ 0.64 $ (5.93 ) Diluted net income (loss) from continuing operations per common share $ 0.22 $ (6.30 ) $ 0.63 $ (5.93 ) Basic net income (loss) from discontinued operations per common share $ 0.08 $ (0.43 ) $ (0.50 ) $ (0.52 ) Diluted net income (loss) from discontinued operations per common share $ 0.08 $ (0.43 ) $ (0.49 ) $ (0.52 ) Basic net income (loss) per common share $ 0.30 $ (6.73 ) $ 0.14 $ (6.44 ) Diluted net income (loss) per common share $ 0.30 $ (6.73 ) $ 0.14 $ (6.44 ) (a) For the three and six months ended July 1, 2017, due to a loss for the period, no incremental shares are included because the effect would be anti-dilutive.

Fair Value of Financial Instr28

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Convertible Notes	The Company's financial instruments also include its Convertible Notes (in thousands): June 30, 2018 December 30, 2017 Fair Value $ 52,979 $ 91,612 Carrying Value (1) 61,544 126,415 (1) Represents the net carrying amount of the liability component of the Convertible Notes. The Company repurchased a portion of its Convertible Notes during the three and six months ended June 30, 2018. Refer to Note 5., "Credit Arrangements" for additional information.

Basis of Presentation (Details)

Basis of Presentation (Details)	6 Months Ended
	Jun. 30, 2018segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of business segments company currently operates through	1

Discontinued Operations - Narra

Discontinued Operations - Narrative (Details) - Discontinued Operations, Held-for-sale or Disposed of by Sale $ in Millions	May 07, 2018USD ($)
Betancourt Nutrition and Nutri-Force
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale, net of transaction costs	$ 15.7
Transition services agreement term	6 months
Supply agreements, amount agreed to purchase annually	$ 53
Supply agreements, term	5 years
Nutri-Force
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax loss on sale	$ 0.2

Discontinued Operations - Reco

Discontinued Operations - Reconciliation of Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 30, 2017
Carrying amounts of the major classes of assets included in discontinued operations:
Total current assets	$ 0	$ 22,625
Total noncurrent assets	0	16,891
Carrying amounts of the major classes of liabilities included in discontinued operations:
Total current liabilities of the disposal group classified as held for sale	$ 0	5,337
Nutri-Force | Held for sale
Carrying amounts of the major classes of assets included in discontinued operations:
Accounts receivable		6,265
Inventories		16,200
Prepaid expenses and other current assets		160
Total current assets		22,625
Property and equipment, net		8,513
Intangible assets, net		8,378
Total noncurrent assets		16,891
Total assets of the disposal group classified as held for sale		39,516
Carrying amounts of the major classes of liabilities included in discontinued operations:
Accounts payable		2,704
Accrued liabilities		2,633
Total current liabilities of the disposal group classified as held for sale		$ 5,337

Discontinued Operations - Recon

Discontinued Operations - Reconciliation of Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Major classes of line items constituting net loss on discontinued operations:
Net income (loss)	$ 1,897		$ (10,003)	$ (11,619)	$ (11,902)
Nutri-Force | Held for sale
Major classes of line items constituting net loss on discontinued operations:
Net sales	4,875		8,417	10,426	19,546
Cost of goods sold	3,340		17,303	7,339	28,600
Fixed assets impairment charges	0		1,820	7,236	1,820
Gross profit (loss)	1,535		(10,706)	(4,149)	(10,874)
Selling, general and administrative expenses	558		5,175	1,952	8,239
Intangible assets and fixed assets impairment charges	0		0	8,978	0
Discontinued operations (gain) loss	(1,287)	$ 1,500	0	163	0
Income (loss) before provision (benefit) for income taxes	2,264		(15,881)	(15,242)	(19,113)
Provision (benefit) for income taxes	367		(5,878)	(3,623)	(7,211)
Net income (loss)	1,897		$ (10,003)	(11,619)	$ (11,902)
Nutri-Force | Held for sale | Transition Service Agreement
Major classes of line items constituting net loss on discontinued operations:
Net sales	$ 1,600			$ 1,600

Discontinued Operations - Cash

Discontinued Operations - Cash Flow Disclosures for Discontinued Operations (Details) - Nutri-Force - Held for sale - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash flows provided by (used in) operating activities	$ (15,062)	$ (1,012)	$ (15,116)	$ (896)
Cash flows provided by (used in) investing activities	15,726	(528)	15,634	(879)
Depreciation and amortization	0	281	769	559
Capital expenditures	$ 2	$ 528	$ 94	$ 879

Goodwill and Intangible Asset34

Goodwill and Intangible Assets - Schedule of Goodwill and Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Gross Carrying Amount	$ 243,269	$ 243,269
Goodwill, Accumulated Impairment Charges	243,269	243,269
Goodwill, Net	0	0
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Accumulated Amortization	3,510	3,352
Intangible assets, Definite-lived, Net	2,045
Goodwill and Intangible Assets, Gross Carrying Amount	317,229	317,066
Goodwill and Intangible Assets, Accumulated Impairment Charges	302,674	302,674
Goodwill and Intangible Assets, Net	11,045	11,040
Tradenames
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, Indefinite-lived, Gross Carrying Amount	68,405	68,405
Intangible assets, Indefinite-lived, Accumulated Impairment Charges	59,405	59,405
Intangible assets, Indefinite-lived, Net	9,000	9,000
Tradenames
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Definite-lived, Gross Carrying Amount	5,555	5,392
Intangible assets, Accumulated Amortization	3,510	3,352
Intangible assets, Definite-lived, Accumulated Impairment Charges	0	0
Intangible assets, Definite-lived, Net	$ 2,045	$ 2,040

Goodwill and Intangible Asset35

Goodwill and Intangible Assets - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Useful lives of definite-lived intangible assets, years	10 years

Goodwill and Intangible Asset36

Goodwill and Intangible Assets - Expected Amortization Expense on Definite-Lived Intangible Assets (Detail) $ in Thousands	Jun. 30, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of Fiscal 2018	$ 157
Fiscal 2,019	313
Fiscal 2,020	313
Fiscal 2,021	313
Fiscal 2,022	313
Thereafter	636
Intangible assets, Definite-lived, Net	$ 2,045

Accrued Expenses and Other Cu37

Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 30, 2017
Payables and Accruals [Abstract]
Accrued salaries and related expenses	$ 19,912	$ 18,094
Sales tax payable and related expenses	6,819	7,088
Deferred sales	8,196	5,710
Other accrued expenses	33,751	31,753
Accrued expenses and other current liabilities	$ 68,678	$ 62,645

Credit Arrangements - Additiona

Credit Arrangements - Additional Information (Detail) - USD ($)	Jun. 01, 2018	Mar. 27, 2018	Dec. 09, 2015	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017	Dec. 30, 2017
Debt Instrument [Line Items]
Gain on extinguishment of repurchased debt				$ 3,727,000	$ 0	$ 16,229,000	$ 0
Outstanding debt				3,000,000		3,000,000		$ 12,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Outstanding debt				3,000,000		3,000,000		12,000,000
Revolving Credit Facility, current borrowing capacity				90,000,000		90,000,000
Revolving Credit Facility, maximum borrowing capacity				150,000,000		150,000,000
Largest amount borrowed under Revolving Credit Facility				43,000,000	$ 38,000,000	43,000,000	$ 38,000,000
Revolving Credit Facility, unused available line of credit				$ 82,700,000		$ 82,700,000
Weighted average interest rate				2.81%	2.13%	2.81%	2.13%
Percentage of annual commitment fee on undrawn portion of Revolving Credit Facility						0.25%
Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Percentage of borrowing base availability, threshold						33.00%
Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Percentage of borrowing base availability, threshold						66.00%
Revolving Credit Facility | Alternative Base Rate | Greater Than or Equal To 66% of Borrowing Base Availability
Debt Instrument [Line Items]
Variable interest rate, basis spread						0.00%
Revolving Credit Facility | Alternative Base Rate | Between 33% and 66% of Borrowing Base Availability
Debt Instrument [Line Items]
Variable interest rate, basis spread						0.125%
Revolving Credit Facility | Alternative Base Rate | Less Than 33% of Borrowing Base Availability
Debt Instrument [Line Items]
Variable interest rate, basis spread						0.25%
Revolving Credit Facility | Adjusted Eurodollar Rate | Greater Than or Equal To 66% of Borrowing Base Availability
Debt Instrument [Line Items]
Variable interest rate, basis spread						1.00%
Revolving Credit Facility | Adjusted Eurodollar Rate | Between 33% and 66% of Borrowing Base Availability
Debt Instrument [Line Items]
Variable interest rate, basis spread						1.125%
Revolving Credit Facility | Adjusted Eurodollar Rate | Less Than 33% of Borrowing Base Availability
Debt Instrument [Line Items]
Variable interest rate, basis spread						1.25%
Convertible Senior Notes Due 2020
Debt Instrument [Line Items]
Principal			$ 143,800,000	$ 68,439,000		$ 68,439,000		$ 143,750,000
Debt instrument, interest rate			2.25%
Debt converted into shares of common stock (in shares)			25.1625
Debt instrument, conversion price			$ 1,000
Stock, conversion price per share (in dollars per share)			$ 39.74
Debt instrument, effective interest rate on debt discount			3.80%
Aggregate principal amount of debt repurchased	$ 29,900,000	$ 45,400,000		75,300,000		75,300,000
Aggregate purchase price	23,100,000	34,000,000		57,200,000		57,200,000
Accrued interest		300,000		$ 300,000		$ 300,000
Gain on extinguishment of repurchased debt	$ 3,700,000	$ 12,500,000
Convertible note hedge transactions amount paid			$ 26,400,000
Proceeds from sale of warrants			$ 13,000,000
Strike price of warrant (in dollars per share)			$ 52.99
Net proceeds from Convertible Notes and related transactions			$ 125,700,000
Commissions and offering costs			$ 4,600,000

Credit Arrangements - Component

Credit Arrangements - Components of Convertible Notes (Details) - USD ($)	Jun. 30, 2018	Dec. 30, 2017	Dec. 09, 2015
Liability component:
Net carrying amount	$ 61,544,000	$ 126,415,000
Convertible Senior Notes Due 2020
Liability component:
Principal	68,439,000	143,750,000	$ 143,800,000
Conversion feature	(17,685,000)	(24,800,000)
Liability portion of debt issuance costs	(2,758,000)	(3,802,000)
Amortization	13,548,000	11,267,000
Net carrying amount	61,544,000	126,415,000
Equity component:
Conversion feature	18,908,000	24,800,000
Equity portion of debt issuance costs	(793,000)	(793,000)
Deferred taxes	941,000	941,000
Net carrying amount	$ 19,056,000	$ 24,948,000

Credit Arrangements - Interest

Credit Arrangements - Interest Expense, Net (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Debt Instrument [Line Items]
Amortization of debt discount on Convertible Notes			$ 1,976	$ 2,368
Amortization of deferred financing fees	$ 145	$ 220	365	458
Interest expense, net	1,699	2,374	4,140	4,786
Revolving Credit Facility
Debt Instrument [Line Items]
Interest / fees on Convertible Notes, Revolving Credit Facility, and other interest	243	147	451	325
Convertible Senior Notes Due 2020
Debt Instrument [Line Items]
Amortization of debt discount on Convertible Notes	769	1,190	1,976	2,368
Interest / fees on Convertible Notes, Revolving Credit Facility, and other interest	$ 542	$ 817	$ 1,348	$ 1,635

Revenue Recognition - Net Sale

Revenue Recognition - Net Sales by Fulfillment Category (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 293,103	$ 296,420	$ 589,067	$ 602,192
Sales fulfilled in stores
Disaggregation of Revenue [Line Items]
Net sales	254,875	268,484	512,291	542,307
Direct to consumer sales
Disaggregation of Revenue [Line Items]
Net sales	$ 38,228	$ 27,936	$ 76,776	$ 59,885

Revenue Recognition - Net Sales

Revenue Recognition - Net Sales by Major Product Category (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Disaggregation of Revenue [Line Items]
Total net sales	$ 293,103	$ 296,420	$ 589,067	$ 602,192
Product Revenue
Disaggregation of Revenue [Line Items]
Total net sales	292,492	295,883	587,839	601,033
Vitamins, Minerals, Herbs and Homeopathy
Disaggregation of Revenue [Line Items]
Total net sales	83,997	82,114	172,801	168,760
Sports Nutrition
Disaggregation of Revenue [Line Items]
Total net sales	89,669	94,834	179,008	192,094
Specialty Supplements
Disaggregation of Revenue [Line Items]
Total net sales	75,986	75,837	151,408	153,802
Other
Disaggregation of Revenue [Line Items]
Total net sales	42,840	43,098	84,622	86,377
Delivery Revenue
Disaggregation of Revenue [Line Items]
Total net sales	$ 611	$ 537	$ 1,228	$ 1,159

Revenue Recognition - Receivab

Revenue Recognition - Receivables and Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jul. 01, 2017	Apr. 01, 2017
Receivables
Balances at beginning of period	$ 11,992	$ 10,937	$ 11,756	$ 11,012
Increase / (Decrease)	(560)	1,055	(672)	744
Balances at end of period	11,432	11,992	11,084	11,756
Contract Liabilities
Balances at beginning of period	8,410	7,511	6,398	6,901
Increase / (Decrease)	1,013	899	983	(503)
Balances at end of period	9,423	8,410	7,381	6,398
Amounts of revenue recognized that were included in opening contract liability balances	$ 6,400	$ 6,500	$ 5,600	$ 6,000

Stock Based Compensation - Addi

Stock Based Compensation - Additional Information (Detail) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)$ / sharesshares	Jun. 30, 2018USD ($)$ / sharesshares	Jul. 01, 2017USD ($)	Jun. 30, 2018USD ($)plan$ / sharesshares	Jul. 01, 2017USD ($)shares	Dec. 30, 2017shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock (in shares) | shares	254,000	254,000		254,000		198,561
Options exercised (in shares) | shares				0
Intrinsic value of options exercised | $					$ 700
Cash received from options exercised | $				$ 0	$ 1,511
Options granted (in shares) | shares				141,777	0
Weighted-average grant date fair value for stock options (in dollars per share) | $ / shares	$ 1.76	$ 1.76		$ 1.76
Compensation expense attributable to stock based compensation | $		$ 100	$ 1,100	$ 900	$ 2,700
Remaining unrecognized stock based compensation expense for non-vested stock options, restricted shares, performance share units and restricted shares units to be expensed in future periods | $	$ 4,700	4,700		$ 4,700
Weighted average recognition period				1 year 7 months 6 days
Estimated value of future forfeitures | $	$ 500	$ 500		$ 500
Treasury stock purchased in settlement of employees' tax obligations (in shares) | shares				55,439
Treasury stock purchased in settlement of employees' tax obligations, value | $				$ 200
Treasury Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available to grant (in shares) | shares	240,900	240,900		240,900
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of shares vested | $				$ 600	1,400
Performance share units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				0.00%
Performance share units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				150.00%
Restricted share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of shares vested | $				$ 200	$ 200
2006 and 2009 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of previous equity incentive plans | plan				2
2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized for grant (in shares) | shares	1,410,928
Shares available to grant (in shares) | shares	2,800,643	2,800,643		2,800,643
Treasury stock (in shares) | shares	240,900	240,900		240,900

Stock Based Compensation - Summ

Stock Based Compensation - Summary of Restricted Shares, Performance Share Units, and Restricted Share Units (Detail)	6 Months Ended
	Jun. 30, 2018$ / sharesshares
Restricted shares
Number of Unvested Shares
Unvested at beginning of period (in shares) | shares	724,104
Granted (in shares) | shares	280,688
Vested (in shares) | shares	(140,809)
Canceled/forfeited (in shares) | shares	(281,836)
Unvested at end of period (in shares) | shares	582,147
Weighted Average Grant Date Fair Value
Unvested at beginning of period (in dollars per share) | $ / shares	$ 18.65
Granted (in dollars per share) | $ / shares	4.46
Vested (in dollars per share) | $ / shares	22.30
Canceled/forfeited (in dollars per share) | $ / shares	16.31
Unvested at end of period (in dollars per share) | $ / shares	$ 12.06
Performance share units
Number of Unvested Shares
Unvested at beginning of period (in shares) | shares	288,365
Granted (in shares) | shares	531,211
Vested (in shares) | shares	0
Canceled/forfeited (in shares) | shares	(400,353)
Unvested at end of period (in shares) | shares	419,223
Weighted Average Grant Date Fair Value
Unvested at beginning of period (in dollars per share) | $ / shares	$ 22.43
Granted (in dollars per share) | $ / shares	4.66
Vested (in dollars per share) | $ / shares	0
Canceled/forfeited (in dollars per share) | $ / shares	11.59
Unvested at end of period (in dollars per share) | $ / shares	$ 10.26
Restricted share units
Number of Unvested Shares
Unvested at beginning of period (in shares) | shares	39,708
Granted (in shares) | shares	4,413
Vested (in shares) | shares	(32,353)
Canceled/forfeited (in shares) | shares	0
Unvested at end of period (in shares) | shares	11,768
Weighted Average Grant Date Fair Value
Unvested at beginning of period (in dollars per share) | $ / shares	$ 11.90
Granted (in dollars per share) | $ / shares	4.85
Vested (in dollars per share) | $ / shares	11.90
Canceled/forfeited (in dollars per share) | $ / shares	0
Unvested at end of period (in dollars per share) | $ / shares	$ 9.26

Stock Based Compensation - Su46

Stock Based Compensation - Summary of Stock Options (Detail) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017
Number of Options
Outstanding at beginning of period (in shares)	308,888
Granted (in shares)	141,777	0
Exercised (in shares)	0
Canceled/forfeited (in shares)	(91,135)
Outstanding at end of period (in shares)	359,530
Vested or expected to vest (in shares)	341,260
Vested and exercisable (in shares)	176,832
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 27.74
Granted (in dollars per share)	4.65
Exercised (in dollars per share)	0
Canceled/forfeited (in dollars per share)	20.94
Outstanding at end of period (in dollars per share)	20.36
Vested or expected to vest (in dollars per share)	20.93
Vested and exercisable (in dollars per share)	$ 31.39
Outstanding, Weighted Average Remaining Contractual Life (years)	6 years 2 months 19 days
Vested or expected to vest, Weighted Average Remaining Contractual Life (years)	6 years 22 days
Vested and exercisable, Weighted Average Remaining Contractual Life (years)	3 years 1 month 24 days
Outstanding, Aggregate Intrinsic Value	$ 326
Vested and exercisable, Aggregate Intrinsic Value	$ 0

Stock Based Compensation - Su47

Stock Based Compensation - Summary of Fair Value Option Grant Using Monte Carlo Option-Pricing Model (Detail)	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected dividend yield	0.00%	0.00%
Weighted average expected volatility	42.61%	42.61%
Weighted average risk-free interest rate	2.54%	2.54%
Expected holding period	6 years 7 days	6 years 7 days

Restructuring Costs - Narrative

Restructuring Costs - Narrative (Details) - Closing of North Bergen, New Jersey Distribution Center	3 Months Ended	6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2018USD ($)
Restructuring Cost and Reserve [Line Items]
Remaining liabilities related to closing	$ 0	$ 0
Occupancy, Severance and Other Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs	400,000	2,700,000
Occupancy, Severance and Other Expenses | Cost of Goods Sold
Restructuring Cost and Reserve [Line Items]
Restructuring costs	100,000	1,800,000
Occupancy, Severance and Other Expenses | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 400,000	$ 900,000

Advertising Costs - Additional

Advertising Costs - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Other Income and Expenses [Abstract]
Advertising expense	$ 6.9	$ 7	$ 13.4	$ 12.9

Income Taxes (Details)

Income Taxes (Details) $ in Millions	12 Months Ended
	Dec. 30, 2017USD ($)
Income Tax Disclosure [Abstract]
Tax expense resulting from the change in valuation of deferred tax assets and liabilities under U.S. Tax Reform	$ 15.3
Decrease in effective tax rate due to revaluation of deferred tax assets and liabilities	5.60%

Net Income (Loss) Per Share - C

Net Income (Loss) Per Share - Calculation of Basic and Diluted Net Income (Loss) Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Numerator:
Net income (loss) from continuing operations	$ 5,283	$ (146,416)	$ 14,940	$ (136,521)
Net income (loss) from discontinued operations	1,897	(10,003)	(11,619)	(11,902)
Net income (loss)	$ 7,180	$ (156,419)	$ 3,321	$ (148,423)
Denominator:
Basic weighted average common shares outstanding (in shares)	23,593,876	23,231,453	23,444,052	23,029,849
Effect of dilutive securities:
Effect of dilutive securities (in shares)		0		0
Diluted weighted average common shares outstanding (in shares)	23,774,548	23,231,453	23,570,976	23,029,849
Basic net income (loss) from continuing operations per common share (in dollars per share)	$ 0.22	$ (6.30)	$ 0.64	$ (5.93)
Diluted net income (loss) from continuing operations per common share (in dollars per share)	0.22	(6.30)	0.63	(5.93)
Basic net income (loss) from discontinued operations per common share (in dollars per share)	0.08	(0.43)	(0.50)	(0.52)
Diluted net income (loss) from discontinued operations per common share (in dollars per share)	0.08	(0.43)	(0.49)	(0.52)
Basic net income (loss) per common share (in dollars per share)	0.30	(6.73)	0.14	(6.44)
Diluted net income (loss) per common share (in dollars per share)	$ 0.30	$ (6.73)	$ 0.14	$ (6.44)
Stock options
Effect of dilutive securities:
Effect of dilutive securities (in shares)	0	0	0	0
Restricted shares
Effect of dilutive securities:
Effect of dilutive securities (in shares)	95,330	0	80,796	0
Performance share units
Effect of dilutive securities:
Effect of dilutive securities (in shares)	68,214	0	34,145	0
Restricted share units
Effect of dilutive securities:
Effect of dilutive securities (in shares)	17,128	0	11,983	0

Net Income (Loss) Per Share - A

Net Income (Loss) Per Share - Additional Information (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Earnings Per Share [Abstract]
Anti-dilutive securities excluded from computation of earnings per share (in shares)	518,214	791,633	975,634	418,600

Share Repurchase Programs - Add

Share Repurchase Programs - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		47 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jun. 01, 2018	Mar. 27, 2018	Aug. 31, 2014
Class of Stock [Line Items]
Amount authorized to be repurchased under share repurchase programs								$ 370,000,000
Total shares repurchased, value	$ 327,100,000		$ 327,100,000		$ 327,100,000
Amount remaining in program	$ 42,900,000		$ 42,900,000		42,900,000
Shares repurchased during period (in shares)	0	0	0	0
Convertible Senior Notes Due 2020
Class of Stock [Line Items]
Aggregate principal amount of debt repurchased	$ 75,300,000		$ 75,300,000		75,300,000	$ 29,900,000	$ 45,400,000
Aggregate purchase price	57,200,000		57,200,000		57,200,000	$ 23,100,000	34,000,000
Accrued interest	$ 300,000		$ 300,000		$ 300,000		$ 300,000
Common Stock
Class of Stock [Line Items]
Number of shares repurchased (in shares)					8,064,325
Convertible Notes
Class of Stock [Line Items]
Number of shares repurchased (in shares)					75,311

Fair Value of Financial Instr54

Fair Value of Financial Instruments - Schedule of Fair Value of Convertible Notes (Details) - Convertible Notes - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 30, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 52,979	$ 91,612
Carrying Value	$ 61,544	$ 126,415