Vitamin Shoppe (VSI) 10-Q 5 Aug 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Jun. 28, 2014	Jul. 18, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	28-Jun-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Trading Symbol	'VSI	'
Entity Registrant Name	'Vitamin Shoppe, Inc.	'
Entity Central Index Key	'0001360530	'
Current Fiscal Year End Date	'--12-27	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	30,891,135

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Jun. 28, 2014	Dec. 28, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$15,026	$74,036
Accounts receivable, net of allowance of $864 in 2014	11,497	'
Inventories	188,510	163,921
Prepaid expenses and other current assets	42,031	37,228
Total current assets	257,064	275,185
Property and equipment, net of accumulated depreciation and amortization of $222,873 and $207,928 in 2014 and 2013, respectively	131,134	120,142
Goodwill	241,020	210,633
Other intangibles, net	89,792	71,264
Other assets	2,861	4,840
Total assets	721,871	682,064
Current liabilities:	'	'
Accounts payable	29,848	39,106
Accrued expenses and other current liabilities	62,532	63,738
Total current liabilities	92,380	102,844
Deferred income taxes	15,034	11,588
Deferred rent	38,091	36,032
Other long-term liabilities	702	3,260
Commitments and contingencies	'	'
Stockholders' equity:	'	'
Preferred stock, $0.01 par value; 250,000,000 shares authorized and no shares issued and outstanding at June 28, 2014 and December 28, 2013	0	0
Common stock, $0.01 par value; 400,000,000 shares authorized, 30,938,110 shares issued and 30,884,883 shares outstanding at June 28, 2014, and 30,531,550 shares issued and 30,525,234 shares outstanding at December 28, 2013	309	305
Additional paid-in capital	314,445	302,314
Treasury stock, at cost; 53,227 shares at June 28, 2014 and 6,316 shares at December 28, 2013	-2,510	-280
Accumulated other comprehensive loss	-102	-86
Retained earnings	263,522	226,087
Total stockholders' equity	575,664	528,340
Total liabilities and stockholders' equity	$721,871	$682,064

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 28, 2014	Dec. 28, 2013
In Thousands, except Share data, unless otherwise specified
Statement Of Financial Position [Abstract]	'	'
Accounts receivable, allowance	$864	'
Accumulated depreciation and amortization, property and equipment	$222,873	$207,928
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	250,000,000	250,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	30,938,110	30,531,550
Common stock, shares outstanding	30,884,883	30,525,234
Treasury stock, shares	53,227	6,316

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Income Statement [Abstract]	'	'	'	'
Net sales	$306,218	$279,483	$614,054	$558,570
Cost of goods sold	203,311	182,226	401,678	359,671
Gross profit	102,907	97,257	212,376	198,899
Selling, general and administrative expenses	74,741	66,673	149,963	133,634
Income from operations	28,166	30,584	62,413	65,265
Interest expense, net	100	106	185	211
Income before provision for income taxes	28,066	30,478	62,228	65,054
Provision for income taxes	11,140	12,216	24,793	25,995
Net income	$16,926	$18,262	$37,435	$39,059
Weighted average common shares outstanding	'	'	'	'
Basic	30,436,210	29,970,366	30,325,447	29,944,861
Diluted	30,842,733	30,482,586	30,796,499	30,488,751
Net income per common share	'	'	'	'
Basic	$0.56	$0.61	$1.23	$1.30
Diluted	$0.55	$0.60	$1.22	$1.28

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Condensed Consolidated Statements Of Comprehensive Income [Abstract]	'	'	'	'
Net income	$16,926	$18,262	$37,435	$39,059
Other comprehensive income (loss):	'	'	'	'
Foreign currency translation adjustments	15	0	-16	-39
Other comprehensive income (loss)	15	0	-16	-39
Comprehensive income	$16,941	$18,262	$37,419	$39,020

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013
Cash flows from operating activities:	'	'
Net income	$37,435	$39,059
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization of fixed and intangible assets	16,447	13,064
Gain on insurance recoveries	0	-1,079
Amortization of deferred financing fees	67	40
Deferred income taxes	2,312	539
Deferred rent	-218	142
Equity compensation expense	3,795	4,361
Proceeds from insurance recoveries	0	757
Tax benefits on exercises of stock options	-3,662	-712
Changes in operating assets and liabilities:	'	'
Accounts receivable	1,051	'
Inventories	-2,521	-3,008
Prepaid expenses and other current assets	-2,871	-3,425
Other assets	2,456	-718
Accounts payable	-16,306	8,773
Accrued expenses and other current liabilities	-5,206	-14,437
Other long-term liabilities	3,207	1,579
Net cash provided by operating activities	35,986	44,935
Cash flows from investing activities:	'	'
Capital expenditures	-19,018	-23,837
Trademarks and other intangible assets	-407	-262
Proceeds from insurance recoveries	0	322
Net cash used in investing activities	-100,963	-74,087
Cash flows from financing activities:	'	'
Payments of capital lease obligations	-78	-43
Proceeds from exercises of common stock options	4,204	1,667
Issuance of shares under employee stock purchase plan	473	637
Tax benefits on exercises of stock options	3,662	712
Purchases of treasury stock	-2,230	-143
Deferred financing fees	-40	'
Net cash provided by financing activities	5,991	2,830
Effect of exchange rate changes on cash and cash equivalents	-24	-10
Net decrease in cash and cash equivalents	-59,010	-26,332
Cash and cash equivalents beginning of period	74,036	81,168
Cash and cash equivalents end of period	15,026	54,836
Supplemental disclosures of cash flow information:	'	'
Interest paid	136	179
Income taxes paid	21,417	31,920
Supplemental disclosures of non-cash investing activities:	'	'
Liability for purchases of property and equipment	5,337	5,097
FDC Vitamins [Member]	'	'
Cash flows from investing activities:	'	'
Acquisition of business	-81,538	'
Super Supplements [Member]	'	'
Cash flows from investing activities:	'	'
Acquisition of business	$0	($50,310)

Basis_of_Presentation

Basis of Presentation	6 Months Ended
	Jun. 28, 2014
Accounting Policies [Abstract]	'
Basis of Presentation	'
	1	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”) and Industries’ wholly-owned subsidiaries, VS Direct Inc. (“Direct”), Vitamin Shoppe Mariner, Inc. (“VSM”), VS Hercules LLC (“VSH”), Vitamin Shoppe Global, Inc. (“VSG”) and Vitapath Canada Limited (“VCL”, and, together with Industries, Direct, VSM, VSH, VSG and VSI, the “Company”), is a multi-channel specialty retailer and contract manufacturer of nutritional products. Sales of both national brands and proprietary brands of vitamins, minerals, herbs, specialty supplements, sports nutrition and other health and wellness products (“VMS products”) are made through VSI-operated retail stores, the internet and mail order catalogs to customers located primarily in the United States. In addition, the Company manufactures products for both sales to third parties as well as for the VSI product assortment. VSI operates from its headquarters in North Bergen, New Jersey.
	The condensed consolidated financial statements as of June 28, 2014 and for the three and six months ended June 28, 2014 and June 29, 2013, are unaudited. The condensed consolidated balance sheet as of December 28, 2013 was derived from our audited financial statements. All intercompany transactions and balances have been eliminated in consolidation. 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 condensed or omitted. 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 Form 10-K for the fiscal year ended December 28, 2013, as filed with the Securities and Exchange Commission on February 25, 2014 (the “Fiscal 2013 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 28, 2014 and June 29, 2013, are each based on 13-week and 26-week periods, respectively.
	On June 6, 2014, the Company acquired all of the outstanding shares of FDC Vitamins, LLC d/b/a Nutri-Force Nutrition (“Nutri-Force”), a company which provides custom manufacturing and private labeling of vitamins, dietary supplements, nutraceuticals and nutritional supplements, as well as, develops and markets its own branded products. The total purchase price is expected to be approximately $85.6 million, including $4.0 million of contingent consideration. Refer to Note 2. Acquisition for additional information.
	On February 14, 2013, the Company acquired substantially all of the assets and assumed certain liabilities of Super Supplements, Inc. (“Super Supplements”), a specialty retailer of vitamins, minerals, specialty supplements and sports nutrition, including 31 retail locations in the Pacific Northwest, a distribution center in Seattle, Washington and an e-commerce business. The total purchase price was $50.5 million in cash and the assumption of certain liabilities. From February 15, 2013 through June 29, 2013 the acquired business generated net sales of $29.6 million and net income of $1.2 million, excluding acquisition and integration costs.
	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 May 2014, the Financial Accounting Standards Board issued Accounting Standards Update No. 2014-09 (“ASU 2014-09”), Revenue from Contracts with Customers (Topic 606). Under ASU 2014-09, an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 will be effective for the Company for annual reporting periods beginning after December 15, 2016 and early application of ASU 2014-09 is not permitted for public companies. The Company is evaluating ASU 2014-09 to determine if this guidance will have a material impact on the Company’s condensed consolidated financial statements.

Acquisition

Acquisition	6 Months Ended
	Jun. 28, 2014
Business Combinations [Abstract]	'
Acquisition	'
	2	Acquisition
	On June 6, 2014, the Company acquired all of the outstanding shares of Nutri-Force. The total purchase price for the acquisition is expected to be approximately $85.6 million, subject to a post-closing working capital adjustment, including $4.0 million of contingent consideration. The contingent consideration arrangement requires additional cash, up to a maximum of $5.0 million, to be paid by the Company based on the achievement of fiscal year 2014 operating performance targets. The fair value of the contingent consideration on the acquisition date was estimated by applying a probability weighted income approach. The acquisition was funded by cash on hand.
	The Company has recorded its preliminary accounting for this acquisition in accordance with accounting guidance on business combinations. The acquisition resulted in goodwill primarily related to the expected benefits resulting from vertical integration as well as growth opportunities. The Company recorded $2.0 million and $3.5 million of acquisition related costs for the three and six months ended June 28, 2014, respectively, which are included in the condensed consolidated statement of income within selling, general and administrative expenses.
	The purchase price of the acquisition has been preliminarily allocated to the net tangible and intangible assets acquired, with the remainder recorded as goodwill on the basis of estimated fair values. On a preliminary basis, the results have been included in the corporate and other reporting segment. The preliminary allocation is as follows (in thousands):
			As of
			June 6, 2014
	Consideration transferred		$	81,538
	Estimated contingent consideration			4,041
	Total consideration		$	85,579
	Less: net identifiable assets acquired
	Current assets			36,139
	Non-current assets			10,008
	Intangible assets			18,800
	Current liabilities			(9,755	)
	Total net identifiable assets acquired		$	55,192
	Goodwill		$	30,387
	As a result of fair value accounting for the acquisition, current assets include an inventory valuation step-up of $4.9 million which will be expensed to cost of goods sold over the period the inventory is sold. Intangible assets consist of brands totaling $10.0 million, customer relationships of $7.5 million and internally-developed software of $1.3 million which are being amortized over their estimated useful lives of 18 years, 20 years and 5 years, respectively. The goodwill of $30.4 million is expected to be amortized for tax purposes.
	From June 6, 2014 through June 28, 2014, the acquired business generated net sales to third parties of $4.2 million and a net loss of $0.9 million, excluding acquisition and integration costs. Pro forma results are not presented as the acquisition was not material to the Company’s condensed consolidated financial statements for the six months ended June 28, 2014 or Fiscal 2013.

Inventories

Inventories	6 Months Ended
	Jun. 28, 2014
Inventory Disclosure [Abstract]	'
Inventories	'
	3	Inventories
	The components of inventories are as follows (in thousands):
			June 28,		December 28,
			2014		2013
	Finished goods		$	175,147	$	163,921
	Work-in-process			5,383		—
	Raw materials			7,980		—
			$	188,510	$	163,921

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 28, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets	'
	4	Goodwill and Intangible Assets
	The following table discloses the carrying value of all intangible assets (in thousands):
			June 28, 2014						December 28, 2013
			Gross		Accumulated		Net		Gross		Accumulated		Net
			Carrying		Amortization				Carrying		Amortization
			Amount						Amount
	Intangible assets
	Goodwill		$	241,020	$	—	$	241,020	$	210,633	$	—	$	210,633
	Tradenames - Indefinite-lived			68,405		—		68,405		68,405		—		68,405
	Brands			10,000		46		9,954		—		—		—
	Customer relationships			7,500		83		7,417		—		—		—
	Tradenames - Definite-lived			3,969		1,251		2,718		3,562		785		2,777
	Software			1,300		22		1,278		—		—		—
	Intangibles related to asset purchase			2,950		2,930		20		2,950		2,868		82
			$	335,144	$	4,332	$	330,812	$	285,550	$	3,653	$	281,897
	The useful lives of the Company’s definite-lived intangible assets are between 3 to 20 years. The expected amortization expense on definite-lived intangible assets on the Company’s condensed consolidated balance sheet at June 28, 2014, is as follows (in thousands):
	Remainder of Fiscal 2014		$	1,041
	Fiscal 2015			2,146
	Fiscal 2016			1,446
	Fiscal 2017			1,346
	Fiscal 2018			1,346
	Thereafter			14,062
			$	21,387

Accrued_Expenses_and_Other_Cur

Accrued Expenses and Other Current Liabilities	6 Months Ended
	Jun. 28, 2014
Payables And Accruals [Abstract]	'
Accrued Expenses and Other Current Liabilities	'
	5	Accrued Expenses and Other Current Liabilities
	Accrued expenses and other current liabilities consist of the following (in thousands):
			June 28,		December 28,
			2014		2013
	Deferred sales		$	13,607	$	21,712
	Accrued salaries and related expenses			7,724		9,940
	Sales tax payable and related expenses			6,058		6,334
	Accrued fixed asset additions			5,287		6,286
	Other accrued expenses			29,856		19,466
			$	62,532	$	63,738

Credit_Arrangements

Credit Arrangements	6 Months Ended
	Jun. 28, 2014
Debt Disclosure [Abstract]	'
Credit Arrangements	'
	6	Credit Arrangements
	As of June 28, 2014 and December 28, 2013, the Company had no outstanding debt.
	Revolving Credit Facility
	The terms of the Revolving Credit Facility were amended on October 11, 2013, to, among other things, extend the maturity date to October 11, 2018. The Company may borrow up to $90.0 million subject to the terms of the facility, 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 from credit card companies as well as the inventory of Industries, Direct, VSM and VSG. The obligations thereunder are secured by a security interest in substantially all of the assets of VSI, Industries, Direct, VSM and VSG. Under the Revolving Credit Facility, VSI has guaranteed the Company’s obligations, and Industries, Direct, VSM and VSG have each guaranteed the obligations of the three respective entities. The Revolving Credit Facility provides for affirmative and negative covenants affecting VSI, Industries, Direct, VSM and VSG. 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. During the six months ended June 28, 2014 there were no borrowings under the Revolving Credit Facility.
	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 0.25% or 0.50% or the adjusted Eurodollar rate plus 1.25% or 1.50%, in each case with the higher spread applicable in the event that the aggregate amount of the borrowings under the Revolving Credit Facility exceeds 50% of the borrowing base availability under the Revolving Credit Facility. The unused available line of credit under the Revolving Credit Facility at June 28, 2014 was $89.0 million.
	Interest expense, net for the three and six months ended June 28, 2014 and June 29, 2013 consists of the following (in thousands):
			Three Months Ended						Six Months Ended
			June 28,			June 29,			June 28,			June 29,
			2014			2013			2014			2013
	Fees on the revolving credit facility and other interest		$	66		$	89		$	131		$	185
	Amortization of deferred financing fees			35			20			67			40
	Interest income			(1	)		(3	)		(13	)		(14	)
	Interest expense, net		$	100		$	106		$	185			$211

Stock_Based_Compensation

Stock Based Compensation	6 Months Ended
	Jun. 28, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock Based Compensation	'
	7	Stock Based Compensation
	Equity Incentive Plans- The Company has two equity incentive plans that provide stock based compensation to certain directors, officers, consultants and employees of the Company; the 2006 Stock Option Plan (the “2006 Plan”) and the Vitamin Shoppe 2009 Equity Incentive Plan (the “2009 Plan”). As of June 28, 2014, there were 2,534,614 shares available to grant under both plans.
	The following table summarizes restricted shares for the 2009 Plan as of June 28, 2014 and changes during the six month period then ended:
			Number of Unvested			Weighted
			Restricted Shares			Average Grant
						Date Fair Value
	Unvested at December 28, 2013			396,360		$	43.83
	Granted			103,826		$	45.97
	Vested			(110,331	)	$	39.35
	Canceled/forfeited			(10,809	)	$	51.78
	Unvested at June 28, 2014			379,046		$	45.49
	The following table summarizes stock options for the 2006 and 2009 Plans as of June 28, 2014 and changes during the six month period then ended:
			Number of Options			Weighted			Weighted			Aggregate
						Average			Average			Intrinsic Value
						Exercise Price			Remaining			(in thousands)
									Contractual
									Life (years)
	Outstanding at December 28, 2013			938,664		$	19.92
	Granted			—			—
	Exercised			(295,017	)	$	14.25
	Canceled/forfeited			(538	)	$	38.33
	Outstanding at June 28, 2014			643,109		$	22.5			4.17		$	13,227
	Vested or expected to vest at June 28, 2014			609,989		$	22.5			4.17
	Vested and exercisable at June 28, 2014			582,740		$	21.01			3.89		$	12,764
	The total intrinsic value of options exercised during the six months ended June 28, 2014 and June 29, 2013, was $9.5 million and $2.0 million, respectively. The cash received from options exercised during the six months ended June 28, 2014 and June 29, 2013 was $4.2 million and $1.7 million, respectively.
	The following table summarizes restricted share units for the 2009 Plan as of June 28, 2014 and changes during the six month period then ended:
			Number of Unvested			Weighted
			Restricted Share			Average Grant
			Units			Date Fair Value
	Unvested at December 28, 2013			6,414		$	56.08
	Granted			9,280		$	51.71
	Vested			(6,414	)	$	56.08
	Canceled/forfeited			—			—
	Unvested at June 28, 2014			9,280		$	51.71
	The weighted-average grant date fair value of stock options granted during the three and six months ended June 28, 2014 was $19.78 and $19.45, respectively. The weighted-average grant date fair value of stock options granted during the three and six months ended June 29, 2013 was $23.43 and $24.13, respectively. These valuations represent the fair value of subsequent annual tranches of performance based stock option grants. The fair value of each option grant was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions:
			Three Months Ended						Six Months Ended
			June 28,			June 29,			June 28,			June 29,
			2014			2013			2014			2013
	Expected dividend yield			0	%		0	%		0	%		0	%
	Weighted average expected volatility			35.3	%		39	%		35.4	%		39.2	%
	Weighted average risk-free interest rate			1.4	%		0.6	%		1.4	%		0.6	%
	Expected holding period			4.00 - 4.43 years			4.00 - 4.93 years			4.00 - 4.43 years			4.00 - 4.93 years
	Compensation expense attributable to stock based compensation for the three and six months ended June 28, 2014 was approximately $1.9 million and $3.8 million, respectively, and for the three and six months ended June 29, 2013, was approximately $2.5 million and $4.4 million, respectively. As of June 28, 2014, the remaining unrecognized stock based compensation expense for non-vested stock options, restricted shares and restricted share units to be expensed in future periods is $10.0 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 and restricted share units as of June 28, 2014 is approximately $0.6 million.
	Treasury Stock- As part of the Company’s stock plans, 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 28, 2014, the Company purchased 46,911 shares in settlement of employees’ tax obligations for a total of $2.2 million. The Company accounts for treasury stock using the cost method.

Advertising_Costs

Advertising Costs	6 Months Ended
	Jun. 28, 2014
Text Block [Abstract]	'
Advertising Costs	'
	8	Advertising Costs
	The costs of advertising for online marketing arrangements, magazines, television and radio are expensed the first time the advertising takes place. Costs associated with the production and distribution of the Company’s catalogs are expensed as incurred. Advertising expense was $4.6 million and $3.9 million for the three months ended June 28, 2014 and June 29, 2013, respectively, and $10.1 and $9.4 million for the six months ended June 28, 2014 and June 29, 2013, respectively.

Net_Income_Per_Share

Net Income Per Share	6 Months Ended
	Jun. 28, 2014
Earnings Per Share [Abstract]	'
Net Income Per Share	'
	9	Net Income Per Share
	The Company’s basic net income per share excludes the dilutive effect of stock options, unvested restricted shares and unvested restricted share units. It is based upon the weighted average number of common shares outstanding during the period divided into net income.
	Diluted net income 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 and unvested restricted share units 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 per common share and diluted net income per common share are as follows (in thousands except share and per share data):
			Three Months Ended				Six Months Ended
			June 28,		June 29,		June 28,		June 29,
			2014		2013		2014		2013
	Numerator:
	Net income		$	16,926	$	18,262	$	37,435	$	39,059
	Denominator:
	Basic weighted average common shares outstanding			30,436,210		29,970,366		30,325,447		29,944,861
	Effect of dilutive securities:
	Stock options			255,090		387,322		289,059		421,138
	Restricted shares			147,945		122,241		179,595		120,132
	Restricted share units			3,488		2,657		2,398		2,620
	Diluted weighted average common shares outstanding			30,842,733		30,482,586		30,796,499		30,488,751
	Basic net income per common share		$	0.56	$	0.61	$	1.23	$	1.3
	Diluted net income per common share		$	0.55	$	0.6	$	1.22	$	1.28
	Stock options and restricted shares for the three months ended June 28, 2014 and June 29, 2013 in the amount of 18,054 shares and 30,546 shares, respectively, have been excluded from the above calculation as they were anti-dilutive. Stock options and restricted shares for the six months ended June 28, 2014 and June 29, 2013 in the amount of 21,998 shares and 27,875 shares, respectively, have been excluded from the above calculation as they were anti-dilutive.

Legal_Proceedings

Legal Proceedings	6 Months Ended
	Jun. 28, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Legal Proceedings	'
	10	Legal Proceedings
	The Company is party to various lawsuits arising from time to time in the normal course of business, many of which are covered by insurance. As of June 28, 2014, the Company was not party to any material legal proceedings. 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.

Segment_Data

Segment Data	6 Months Ended
	Jun. 28, 2014
Segment Reporting [Abstract]	'
Segment Data	'
	11	Segment Data
	The Company currently operates two business segments, retail and direct. The operating segments are segments of the Company for which separate financial information is available and for which operating results are evaluated regularly by executive management in deciding how to allocate resources and in assessing performance. The Company’s management evaluates segment operating results based on several indicators. The primary key performance indicators are sales and operating income for each segment. The table below represents key financial information for each of the Company’s business segments, retail and direct, as well as corporate and other costs. The retail segment primarily includes the Company’s retail stores. The retail segment generates revenue primarily through the sale of VMS products through Vitamin Shoppe, Super Supplements and Vitapath retail stores in the United States, Puerto Rico and in Canada. The direct segment generates revenue through the sale of VMS products primarily through the Company’s websites and catalog. The Company’s websites at www.vitaminshoppe.com and www.supersup.com offer customers online access to a full assortment of approximately 25,000 SKUs. Corporate and other costs represent all other expenses not allocated to the retail or direct segments which include, but are not limited to: human resources, legal, retail management, direct management, finance, information technology, depreciation and amortization, and various other corporate level activity related expenses. In addition, the Company’s recently acquired manufacturing operations, which generated a net loss of $0.9 million during the three months ended June 28, 2014, are included in corporate and other costs. These manufacturing operations supply the retail and direct segments, along with various third parties, with finished products for sale. Management will evaluate the acquired manufacturing operations for future segment reporting purposes. Intercompany sales transactions are eliminated in consolidation.
	The Company’s segments are designed to allocate resources internally and provide a framework to determine management responsibility. The accounting policies of the segments are consistent with those described in Note 2. Summary of Significant Accounting Policies in the Fiscal 2013 Form 10-K. The Company has allocated $165.3 million and $45.3 million of its recorded goodwill to the retail and direct segments, respectively. Goodwill from the acquisition of Nutri-Force was $30.4 million. The Company does not have identifiable assets separated by segment.
	The following table contains key financial information of the Company’s business segments (in thousands):
			Three Months Ended						Six Months Ended
			June 28,			June 29,			June 28,			June 29,
			2014			2013			2014			2013
	Net sales:
	Retail		$	269,586		$	250,857		$	542,054		$	499,279
	Direct			32,443			28,626			67,811			59,291
	Segment net sales			302,029			279,483			609,865			558,570
	Manufacturing			5,014			—			5,014			—
	Elimination of intercompany revenues			(825	)		—			(825	)		—
	Net sales		$	306,218		$	279,483		$	614,054		$	558,570
	Income from operations:
	Retail		$	51,737		$	51,054		$	108,436		$	106,229
	Direct			5,760			5,236			12,785			11,112
	Corporate and other costs (1)			(29,331	)		(25,706	)		(58,808	)		(52,076	)
	Income from operations		$	28,166		$	30,584		$	62,413		$	65,265
	-1	Corporate and other costs include (in thousands):
			Three Months Ended						Six Months Ended
			June 28,			June 29,			June 28,			June 29,
			2014			2013			2014			2013
	Depreciation and amortization expenses		$	8,407		$	6,729		$	16,447		$	13,064
	Acquisition and integration costs			2,248			946			4,006			2,991
	Insurance recoveries from Superstorm Sandy			—			(879	)		—			(1,079	)

Subsequent_Event

Subsequent Event	6 Months Ended
	Jun. 28, 2014
Subsequent Events [Abstract]	'
Subsequent Event	'
	12. Subsequent Event
	On August 5, 2014, the Company announced that its board of directors approved a share repurchase program that enables the Company to purchase up to $100 million of its shares of common stock from time to time over the next three years.
	The repurchase program does not obligate the Company to acquire any specific number of shares and may be suspended, terminated or modified at any time for any reason, including market conditions, the cost of repurchasing shares, the availability of alternative investment opportunities, liquidity, and other factors deemed appropriate. These factors may also affect the timing and amount of share repurchases.

Acquisition_Tables

Acquisition (Tables)	6 Months Ended
	Jun. 28, 2014
Business Combinations [Abstract]	'
Purchase Price of Acquisition Allocated to Net Tangible and Intangible Assets Acquired	'
	The preliminary allocation is as follows (in thousands):
		As of
		June 6, 2014
	Consideration transferred	$	81,538
	Estimated contingent consideration		4,041
	Total consideration	$	85,579
	Less: net identifiable assets acquired
	Current assets		36,139
	Non-current assets		10,008
	Intangible assets		18,800
	Current liabilities		(9,755	)
	Total net identifiable assets acquired	$	55,192
	Goodwill	$	30,387

Inventories_Tables

Inventories (Tables)	6 Months Ended
	Jun. 28, 2014
Inventory Disclosure [Abstract]	'
Components of Inventories	'
	The components of inventories are as follows (in thousands):
		June 28,		December 28,
		2014		2013
	Finished goods	$	175,147	$	163,921
	Work-in-process		5,383		—
	Raw materials		7,980		—
		$	188,510	$	163,921

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 28, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Schedule of Intangible Assets	'
	The following table discloses the carrying value of all intangible assets (in thousands):
		June 28, 2014						December 28, 2013
		Gross		Accumulated		Net		Gross		Accumulated		Net
		Carrying		Amortization				Carrying		Amortization
		Amount						Amount
	Intangible assets
	Goodwill	$	241,020	$	—	$	241,020	$	210,633	$	—	$	210,633
	Tradenames - Indefinite-lived		68,405		—		68,405		68,405		—		68,405
	Brands		10,000		46		9,954		—		—		—
	Customer relationships		7,500		83		7,417		—		—		—
	Tradenames - Definite-lived		3,969		1,251		2,718		3,562		785		2,777
	Software		1,300		22		1,278		—		—		—
	Intangibles related to asset purchase		2,950		2,930		20		2,950		2,868		82
		$	335,144	$	4,332	$	330,812	$	285,550	$	3,653	$	281,897
Expected Amortization Expense on Definite-Lived Intangible Assets	'
	The expected amortization expense on definite-lived intangible assets on the Company’s condensed consolidated balance sheet at June 28, 2014, is as follows (in thousands):
	Remainder of Fiscal 2014	$	1,041
	Fiscal 2015		2,146
	Fiscal 2016		1,446
	Fiscal 2017		1,346
	Fiscal 2018		1,346
	Thereafter		14,062
		$	21,387

Accrued_Expenses_and_Other_Cur1

Accrued Expenses and Other Current Liabilities (Tables)	6 Months Ended
	Jun. 28, 2014
Payables And Accruals [Abstract]	'
Accrued Expenses and Other Current Liabilities	'
	Accrued expenses and other current liabilities consist of the following (in thousands):
		June 28,		December 28,
		2014		2013
	Deferred sales	$	13,607	$	21,712
	Accrued salaries and related expenses		7,724		9,940
	Sales tax payable and related expenses		6,058		6,334
	Accrued fixed asset additions		5,287		6,286
	Other accrued expenses		29,856		19,466
		$	62,532	$	63,738

Credit_Arrangements_Tables

Credit Arrangements (Tables)	6 Months Ended
	Jun. 28, 2014
Debt Disclosure [Abstract]	'
Interest Expense, Net	'
	Interest expense, net for the three and six months ended June 28, 2014 and June 29, 2013 consists of the following (in thousands):
		Three Months Ended						Six Months Ended
		June 28,			June 29,			June 28,			June 29,
		2014			2013			2014			2013
	Fees on the revolving credit facility and other interest	$	66		$	89		$	131		$	185
	Amortization of deferred financing fees		35			20			67			40
	Interest income		(1	)		(3	)		(13	)		(14	)
	Interest expense, net	$	100		$	106		$	185			$211

Stock_Based_Compensation_Table

Stock Based Compensation (Tables)	6 Months Ended
	Jun. 28, 2014
Summary of Stock Options	'
	The following table summarizes stock options for the 2006 and 2009 Plans as of June 28, 2014 and changes during the six month period then ended:
		Number of Options			Weighted			Weighted			Aggregate
					Average			Average			Intrinsic Value
					Exercise Price			Remaining			(in thousands)
								Contractual
								Life (years)
	Outstanding at December 28, 2013		938,664		$	19.92
	Granted		—			—
	Exercised		(295,017	)	$	14.25
	Canceled/forfeited		(538	)	$	38.33
	Outstanding at June 28, 2014		643,109		$	22.5			4.17		$	13,227
	Vested or expected to vest at June 28, 2014		609,989		$	22.5			4.17
	Vested and exercisable at June 28, 2014		582,740		$	21.01			3.89		$	12,764
Summary of Fair Value Option Grant Using Black-Scholes Option-Pricing Model	'
	The fair value of each option grant was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions:
		Three Months Ended						Six Months Ended
		June 28,			June 29,			June 28,			June 29,
		2014			2013			2014			2013
	Expected dividend yield		0	%		0	%		0	%		0	%
	Weighted average expected volatility		35.3	%		39	%		35.4	%		39.2	%
	Weighted average risk-free interest rate		1.4	%		0.6	%		1.4	%		0.6	%
	Expected holding period		4.00 - 4.43 years			4.00 - 4.93 years			4.00 - 4.43 years			4.00 - 4.93 years
Restricted Shares [Member]	'
Summary of Restricted Shares	'
	The following table summarizes restricted shares for the 2009 Plan as of June 28, 2014 and changes during the six month period then ended:
		Number of Unvested			Weighted
		Restricted Shares			Average Grant
					Date Fair Value
	Unvested at December 28, 2013		396,360		$	43.83
	Granted		103,826		$	45.97
	Vested		(110,331	)	$	39.35
	Canceled/forfeited		(10,809	)	$	51.78
	Unvested at June 28, 2014		379,046		$	45.49
Restricted Share Units [Member]	'
Summary of Restricted Shares	'
	The following table summarizes restricted share units for the 2009 Plan as of June 28, 2014 and changes during the six month period then ended:
		Number of Unvested			Weighted
		Restricted Share			Average Grant
		Units			Date Fair Value
	Unvested at December 28, 2013		6,414		$	56.08
	Granted		9,280		$	51.71
	Vested		(6,414	)	$	56.08
	Canceled/forfeited		—			—
	Unvested at June 28, 2014		9,280		$	51.71

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	6 Months Ended
	Jun. 28, 2014
Earnings Per Share [Abstract]	'
Calculation of Basic and Diluted Net Income Per Common Share	'
	The components of the calculation of basic net income per common share and diluted net income per common share are as follows (in thousands except share and per share data):
		Three Months Ended				Six Months Ended
		June 28,		June 29,		June 28,		June 29,
		2014		2013		2014		2013
	Numerator:
	Net income	$	16,926	$	18,262	$	37,435	$	39,059
	Denominator:
	Basic weighted average common shares outstanding		30,436,210		29,970,366		30,325,447		29,944,861
	Effect of dilutive securities:
	Stock options		255,090		387,322		289,059		421,138
	Restricted shares		147,945		122,241		179,595		120,132
	Restricted share units		3,488		2,657		2,398		2,620
	Diluted weighted average common shares outstanding		30,842,733		30,482,586		30,796,499		30,488,751
	Basic net income per common share	$	0.56	$	0.61	$	1.23	$	1.3
	Diluted net income per common share	$	0.55	$	0.6	$	1.22	$	1.28

Segment_Data_Tables

Segment Data (Tables)	6 Months Ended
	Jun. 28, 2014
Segment Reporting [Abstract]	'
Table of Key Financial Information of Company's Business Segments	'
	The following table contains key financial information of the Company’s business segments (in thousands):
			Three Months Ended						Six Months Ended
			June 28,			June 29,			June 28,			June 29,
			2014			2013			2014			2013
	Net sales:
	Retail		$	269,586		$	250,857		$	542,054		$	499,279
	Direct			32,443			28,626			67,811			59,291
	Segment net sales			302,029			279,483			609,865			558,570
	Manufacturing			5,014			—			5,014			—
	Elimination of intercompany revenues			(825	)		—			(825	)		—
	Net sales		$	306,218		$	279,483		$	614,054		$	558,570
	Income from operations:
	Retail		$	51,737		$	51,054		$	108,436		$	106,229
	Direct			5,760			5,236			12,785			11,112
	Corporate and other costs (1)			(29,331	)		(25,706	)		(58,808	)		(52,076	)
	Income from operations		$	28,166		$	30,584		$	62,413		$	65,265
	-1	Corporate and other costs include (in thousands):
			Three Months Ended						Six Months Ended
			June 28,			June 29,			June 28,			June 29,
			2014			2013			2014			2013
	Depreciation and amortization expenses		$	8,407		$	6,729		$	16,447		$	13,064
	Acquisition and integration costs			2,248			946			4,006			2,991
	Insurance recoveries from Superstorm Sandy			—			(879	)		—			(1,079	)

Basis_of_Presentation_Addition

Basis of Presentation - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended		0 Months Ended	4 Months Ended	0 Months Ended		0 Months Ended
	Jun. 06, 2014	Jun. 28, 2014	Jun. 06, 2014	Feb. 14, 2013	Jun. 29, 2013	Jun. 06, 2014	Jun. 06, 2014	Feb. 14, 2013	Feb. 14, 2013
				Super Supplements [Member]	Super Supplements [Member]	FDC Vitamins [Member]	FDC Vitamins [Member]	Seattle Washington [Member]	Washington [Member]
				Retail_Locations				Super Supplements [Member]	Super Supplements [Member]
								DistributionCenters	Business
Basis Of Presentation [Line Items]	'	'	'	'	'	'	'	'	'
Expected purchase price including contingent consideration not yet paid	$85,579,000	'	'	'	'	$85,600,000	'	'	'
Contingent consideration	'	'	4,041,000	'	'	'	4,000,000	'	'
Number of distribution center	'	'	'	'	'	'	'	1	'
Number of e-commerce business	'	'	'	'	'	'	'	'	1
Number of retail locations in Pacific Northwest	'	'	'	31	'	'	'	'	'
Purchase price, cash paid	81,538,000	'	'	50,500,000	'	'	'	'	'
Net sales	'	4,200,000	'	'	29,600,000	'	'	'	'
Net income (loss)	'	($900,000)	'	'	$1,200,000	'	'	'	'

Acquisition_Additional_Informa

Acquisition - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended	6 Months Ended
	Jun. 06, 2014	Jun. 28, 2014	Jun. 28, 2014	Jun. 28, 2014	Jun. 06, 2014	Dec. 28, 2013
Business Combination Segment Allocation [Line Items]	'	'	'	'	'	'
Expected purchase price including contingent consideration not yet paid	$85,579,000	'	'	'	'	'
Contingent consideration	'	'	'	'	4,041,000	'
Acquisition related costs	'	'	2,000,000	3,500,000	'	'
Intangible assets	'	'	'	'	18,800,000	'
Goodwill	'	241,020,000	241,020,000	241,020,000	30,387,000	210,633,000
Inventory valuation step-up	'	4,900,000	4,900,000	4,900,000	'	'
Net sales	'	4,200,000	'	'	'	'
Net income (loss)	'	-900,000	'	'	'	'
Brands [Member]	'	'	'	'	'	'
Business Combination Segment Allocation [Line Items]	'	'	'	'	'	'
Intangible assets	'	10,000,000	10,000,000	10,000,000	'	'
Estimated useful life period	'	'	'	'18 years	'	'
Customer Relationships [Member]	'	'	'	'	'	'
Business Combination Segment Allocation [Line Items]	'	'	'	'	'	'
Intangible assets	'	7,500,000	7,500,000	7,500,000	'	'
Estimated useful life period	'	'	'	'20 years	'	'
Internally-Developed Software [Member]	'	'	'	'	'	'
Business Combination Segment Allocation [Line Items]	'	'	'	'	'	'
Intangible assets	'	1,300,000	1,300,000	1,300,000	'	'
Estimated useful life period	'	'	'	'5 years	'	'
Nutri-Force [Member]	'	'	'	'	'	'
Business Combination Segment Allocation [Line Items]	'	'	'	'	'	'
Expected purchase price including contingent consideration not yet paid	85,600,000	'	'	'	'	'
Contingent consideration	'	'	'	'	4,000,000	'
Maximum contingent consideration	'	'	'	'	5,000,000	'
Goodwill	'	$30,400,000	$30,400,000	$30,400,000	'	'

Acquisition_Purchase_Price_of_

Acquisition -Purchase Price of Acquisition Allocated to Net Tangible and Intangible Assets Acquired (Detail) (USD $)	0 Months Ended
In Thousands, unless otherwise specified	Jun. 06, 2014	Jun. 28, 2014	Jun. 06, 2014	Dec. 28, 2013
Business Combinations [Abstract]	'	'	'	'
Consideration transferred	$81,538	'	'	'
Estimated contingent consideration	'	'	4,041	'
Total consideration	85,579	'	'	'
Less: net identifiable assets acquired	'	'	'	'
Current assets	'	'	36,139	'
Non-current assets	'	'	10,008	'
Intangible assets	'	'	18,800	'
Current liabilities	'	'	-9,755	'
Total net identifiable assets acquired	'	'	55,192	'
Goodwill	'	$241,020	$30,387	$210,633

Inventories_Components_of_Inve

Inventories - Components of Inventories (Detail) (USD $)	Jun. 28, 2014	Dec. 28, 2013
In Thousands, unless otherwise specified
Inventory Disclosure [Abstract]	'	'
Finished goods	$175,147	$163,921
Work-in-process	5,383	'
Raw materials	7,980	'
Inventories, Total	$188,510	$163,921

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets - Schedule of Intangible Assets (Detail) (USD $)	Jun. 28, 2014	Jun. 06, 2014	Dec. 28, 2013
In Thousands, unless otherwise specified
Schedule Of Goodwill And Other Intangible Assets [Line Items]	'	'	'
Intangible Assets, Goodwill, Gross Carrying Amount	$241,020	'	$210,633
Goodwill	241,020	30,387	210,633
Intangible Assets, Gross Carrying Amount	335,144	'	285,550
Intangible Assets, Accumulated Amortization	4,332	'	3,653
Intangible Assets, Net	330,812	'	281,897
Finite-Lived Intangible Assets, Amortization Expense	21,387	'	'
Intangible Assets, Net	89,792	'	71,264
Intangibles Related to Asset Purchase [Member]	'	'	'
Schedule Of Goodwill And Other Intangible Assets [Line Items]	'	'	'
Intangible Assets, Definite - Lived, Gross Carrying Amount	2,950	'	2,950
Intangible Assets, Accumulated Amortization	2,930	'	2,868
Intangible Assets, Net	20	'	82
Brands [Member]	'	'	'
Schedule Of Goodwill And Other Intangible Assets [Line Items]	'	'	'
Intangible Assets, Definite - Lived, Gross Carrying Amount	10,000	'	'
Intangible Assets, Accumulated Amortization	46	'	'
Finite-Lived Intangible Assets, Amortization Expense	9,954	'	'
Customer Relationships [Member]	'	'	'
Schedule Of Goodwill And Other Intangible Assets [Line Items]	'	'	'
Intangible Assets, Definite - Lived, Gross Carrying Amount	7,500	'	'
Intangible Assets, Accumulated Amortization	83	'	'
Finite-Lived Intangible Assets, Amortization Expense	7,417	'	'
Tradename [Member]	'	'	'
Schedule Of Goodwill And Other Intangible Assets [Line Items]	'	'	'
Intangible Assets, Definite - Lived, Gross Carrying Amount	3,969	'	3,562
Intangible Assets, Tradenames-Indefinite-Lived, Gross Carrying Amount	68,405	'	68,405
Intangible Assets, Tradenames-Indefinite-Lived, Net	68,405	'	68,405
Intangible Assets, Accumulated Amortization	1,251	'	785
Finite-Lived Intangible Assets, Amortization Expense	2,718	'	2,777
Software [Member]	'	'	'
Schedule Of Goodwill And Other Intangible Assets [Line Items]	'	'	'
Intangible Assets, Definite - Lived, Gross Carrying Amount	1,300	'	'
Intangible Assets, Accumulated Amortization	22	'	'
Finite-Lived Intangible Assets, Amortization Expense	$1,278	'	'

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets - Additional Information (Detail)	6 Months Ended
	Jun. 28, 2014
Minimum [Member]	'
Goodwill And Intangible Assets [Line Items]	'
Useful lives of definite-lived intangible assets, years	'3 years
Maximum [Member]	'
Goodwill And Intangible Assets [Line Items]	'
Useful lives of definite-lived intangible assets, years	'20 years

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets - Expected Amortization Expense on Definite-Lived Intangible Assets (Detail) (USD $)	Jun. 28, 2014
In Thousands, unless otherwise specified
Finite Lived Intangible Assets Future Amortization Expense [Abstract]	'
Remainder of Fiscal 2014	$1,041
Fiscal 2015	2,146
Fiscal 2016	1,446
Fiscal 2017	1,346
Fiscal 2018	1,346
Thereafter	14,062
Finite-Lived Intangible Assets, Amortization Expense	$21,387

Accrued_Expenses_and_Other_Cur2

Accrued Expenses and Other Current Liabilities - Accrued Expenses and Other Current Liabilities (Detail) (USD $)	Jun. 28, 2014	Dec. 28, 2013
In Thousands, unless otherwise specified
Payables And Accruals [Abstract]	'	'
Deferred sales	$13,607	$21,712
Accrued salaries and related expenses	7,724	9,940
Sales tax payable and related expenses	6,058	6,334
Accrued fixed asset additions	5,287	6,286
Other accrued expenses	29,856	19,466
Accrued expenses and other current liabilities	$62,532	$63,738

Credit_Arrangements_Additional

Credit Arrangements - Additional Information (Detail) (USD $)	Jun. 28, 2014	Dec. 28, 2013	Jun. 28, 2014	Jun. 28, 2014	Jun. 28, 2014	Jun. 28, 2014	Jun. 28, 2014
In Millions, unless otherwise specified			Revolving Credit Facility [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]
				Minimum [Member]	Minimum [Member]	Maximum [Member]	Maximum [Member]
				Alternate Base Rate [Member]	Adjusted Eurodollar Rate [Member]	Alternate Base Rate [Member]	Adjusted Eurodollar Rate [Member]
Debt Instrument [Line Items]	'	'	'	'	'	'	'
Outstanding debt	$0	$0	'	'	'	'	'
Revolving Credit Facility, current borrowing capacity	'	'	90	'	'	'	'
Revolving Credit Facility, maximum borrowing capacity	'	'	150	'	'	'	'
Revolving Credit Facility, extended maturity date	'	'	11-Oct-18	'	'	'	'
Borrowings under Revolving Credit Facility	'	'	0	'	'	'	'
Revolving Credit Facility, interest rate description	'	'	'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 0.25% or 0.50% or the adjusted Eurodollar rate plus 1.25% or 1.50%, in each case with the higher spread applicable in the event that the aggregate amount of the borrowings under the Revolving Credit Facility exceeds 50% of the borrowing base availability under the Revolving Credit Facility.	'	'	'	'
Percentage of aggregate borrowings facility limit	'	'	50.00%	'	'	'	'
Variable interest rate, basis spread	'	'	'	0.25%	1.25%	0.50%	1.50%
Revolving Credit Facility, unused available line of credit	'	'	$89	'	'	'	'

Credit_Arrangements_Interest_E

Credit Arrangements - Interest Expense, Net (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Interest Expense [Line Items]	'	'	'	'
Amortization of deferred financing fees	$35	$20	$67	$40
Interest income	-1	-3	-13	-14
Interest expense, net	100	106	185	211
Revolving Credit Facility [Member]	'	'	'	'
Interest Expense [Line Items]	'	'	'	'
Fees on the revolving credit facility and other interest	$66	$89	$131	$185

Stock_Based_Compensation_Addit

Stock Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
			Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Number of equity incentive plan	'	'	2	'
Intrinsic value of options exercised	'	'	$9.50	$2
Cash received from options exercised	'	'	4.2	1.7
Weighted-average grant date fair value for grants	$19.78	$23.43	$19.45	$24.13
Compensation expense attributable to stock-based compensation	1.9	2.5	3.8	4.4
Unrecognized stock based compensation expense for non-vested stock options, restricted shares and restricted shares units	10	'	10	'
Recognition period for non-vested stock options, restricted shares and restricted shares units	'	'	'1 year 7 months 6 days	'
Estimated value of future forfeitures for equity grants	0.6	'	0.6	'
Stock purchased during period, shares	'	'	46,911	'
Stock purchased during period, value	'	'	$2.20	'
2006 and 2009 Plan [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Shares available to grant under both plans	2,534,614	'	2,534,614	'

Stock_Based_Compensation_Summa

Stock Based Compensation - Summary of Restricted Shares (Detail) (USD $)	6 Months Ended
	Jun. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unvested at December 28, 2013, Number of Unvested Restricted Shares	396,360
Granted, Number of Unvested Restricted Shares	103,826
Vested, Number of Unvested Restricted Shares	-110,331
Canceled/forfeited, Number of Unvested Restricted Shares	-10,809
Unvested at June 28, 2014, Number of Unvested Restricted Shares	379,046
Unvested at December 28, 2013, Weighted Average Grant Date Fair Value	$43.83
Granted, Weighted Average Grant Date Fair Value	$45.97
Vested, Weighted Average Grant Date Fair Value	$39.35
Canceled/forfeited, Weighted Average Grant Date Fair Value	$51.78
Unvested at June 28, 2014, Weighted Average Grant Date Fair Value	$45.49
Restricted Share Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unvested at December 28, 2013, Number of Unvested Restricted Shares	6,414
Granted, Number of Unvested Restricted Shares	9,280
Vested, Number of Unvested Restricted Shares	-6,414
Unvested at June 28, 2014, Number of Unvested Restricted Shares	9,280
Unvested at December 28, 2013, Weighted Average Grant Date Fair Value	$56.08
Granted, Weighted Average Grant Date Fair Value	$51.71
Vested, Weighted Average Grant Date Fair Value	$56.08
Unvested at June 28, 2014, Weighted Average Grant Date Fair Value	$51.71

Stock_Based_Compensation_Summa1

Stock Based Compensation - Summary of Stock Options (Detail) (USD $)	6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 28, 2014
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest [Abstract]	'
Outstanding at December 28, 2013, Number of Options	938,664
Exercised, Number of Options	-295,017
Canceled/forfeited, Number of Options	-538
Outstanding at June 28, 2014, Number of Options	643,109
Vested or expected to vest at June 28, 2014, Number of Options	609,989
Vested and exercisable at June 28, 2014, Number of Options	582,740
Outstanding at December 28, 2013, Weighted Average Exercise Price	$19.92
Exercised, Weighted Average Exercise Price	$14.25
Canceled/forfeited, Weighted Average Exercise Price	$38.33
Outstanding at June 28, 2014, Weighted Average Exercise Price	$22.50
Vested or expected to vest at June 28, 2014, Weighted Average Exercise Price	$22.50
Vested and exercisable at June 28, 2014, Weighted Average Exercise Price	$21.01
Outstanding at June 28, 2014, Weighted Average Remaining Contractual Life (years)	'4 years 2 months 1 day
Vested or expected to vest at June 28, 2014, Weighted Average Remaining Contractual Life (years)	'4 years 2 months 1 day
Vested and exercisable at June 28, 2014, Weighted Average Remaining Contractual Life (years)	'3 years 10 months 21 days
Outstanding at June 28, 2014, Aggregate Intrinsic Value	$13,227
Vested and exercisable at June 28, 2014, Aggregate Intrinsic Value	$12,764

Stock_Based_Compensation_Summa2

Stock Based Compensation - Summary of Fair Value Option Grant Using Black-Scholes Option-Pricing Model (Detail)	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Weighted average expected volatility	35.30%	39.00%	35.40%	39.20%
Weighted average risk-free interest rate	1.40%	0.60%	1.40%	0.60%
Minimum [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Expected holding period	'4 years	'4 years	'4 years	'4 years
Maximum [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Expected holding period	'4 years 5 months 5 days	'4 years 11 months 5 days	'4 years 5 months 5 days	'4 years 11 months 5 days

Advertising_Costs_Additional_I

Advertising Costs - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Other Income And Expenses [Abstract]	'	'	'	'
Advertising expense	$4.60	$3.90	$10.10	$9.40

Net_Income_Per_Share_Calculati

Net Income Per Share - Calculation of Basic and Diluted Net Income Per Common Share (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]	'	'	'	'
Net income	$16,926	$18,262	$37,435	$39,059
Basic weighted average common shares outstanding	30,436,210	29,970,366	30,325,447	29,944,861
Diluted weighted average common shares outstanding	30,842,733	30,482,586	30,796,499	30,488,751
Basic net income per common share	$0.56	$0.61	$1.23	$1.30
Diluted net income per common share	$0.55	$0.60	$1.22	$1.28
Stock Options [Member]	'	'	'	'
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]	'	'	'	'
Effect of dilutive securities	255,090	387,322	289,059	421,138
Restricted Shares [Member]	'	'	'	'
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]	'	'	'	'
Effect of dilutive securities	147,945	122,241	179,595	120,132
Restricted Share Units [Member]	'	'	'	'
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]	'	'	'	'
Effect of dilutive securities	3,488	2,657	2,398	2,620

Net_Income_Per_Share_Additiona

Net Income Per Share - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Earnings Per Share [Abstract]	'	'	'	'
Anti-dilutive stock options and restricted shares excluded from computation of earnings per share	18,054	30,546	21,998	27,875

Segment_Data_Additional_Inform

Segment Data - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013	Jun. 06, 2014	Dec. 28, 2013
			Segment
			Stock_Unit
Segment Reporting Information [Line Items]	'	'	'	'	'	'
Number of business segments	'	'	2	'	'	'
Number of SKUs available for online access	'	'	25,000	'	'	'
Net income (loss)	$16,926	$18,262	$37,435	$39,059	'	'
Goodwill	241,020	'	241,020	'	30,387	210,633
Nutri-Force [Member]	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'
Goodwill	30,400	'	30,400	'	'	'
Retail [Member]	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'
Goodwill	165,300	'	165,300	'	'	'
Direct [Member]	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'
Goodwill	45,300	'	45,300	'	'	'
Manufacturing [Member]	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'
Net income (loss)	($900)	'	'	'	'	'

Segment_Data_Table_of_Key_Fina

Segment Data - Table of Key Financial Information of Company's Business Segments (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Revenue from External Customer [Line Items]	'	'	'	'
Net sales	$306,218	$279,483	$614,054	$558,570
Income from operations	28,166	30,584	62,413	65,265
Sales Revenue, Segment [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Net sales	302,029	279,483	609,865	558,570
Manufacturing [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Net sales	5,014	'	5,014	'
Corporate and Other Costs [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Income from operations	-29,331	-25,706	-58,808	-52,076
Operating Segments [Member] | Retail [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Net sales	269,586	250,857	542,054	499,279
Income from operations	51,737	51,054	108,436	106,229
Operating Segments [Member] | Direct [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Net sales	32,443	28,626	67,811	59,291
Income from operations	5,760	5,236	12,785	11,112
Elimination of Intercompany Revenues [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Net sales	($825)	'	($825)	'

Segment_Data_Table_of_Key_Fina1

Segment Data - Table of Key Financial Information of Company's Business Segments (Parenthetical) (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Revenue from External Customer [Line Items]	'	'	'	'
Insurance recoveries from Superstorm Sandy	'	'	$0	($1,079)
Corporate and Other Costs [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Depreciation and amortization expenses	8,407	6,729	16,447	13,064
Acquisition and integration costs	2,248	946	4,006	2,991
Insurance recoveries from Superstorm Sandy	'	($879)	'	($1,079)

Subsequent_Event_Additional_in

Subsequent Event - Additional information (Detail) (Subsequent Event [Member], USD $)	0 Months Ended
In Millions, unless otherwise specified	Aug. 05, 2014	Aug. 05, 2014
Subsequent Event [Member]	'	'
Subsequent Event [Line Items]	'	'
Purchase of common stock under share repurchase program	'	$100
Purchase plan period	'3 years	'