BJ's Wholesale Club (BJ) 10-Q 4 Jun 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	May 04, 2019	May 31, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	May 4, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	BJ
Entity Registrant Name	BJ's Wholesale Club Holdings, Inc.
Entity Central Index Key	0001531152
Current Fiscal Year End Date	--02-01
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		139,149,351

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	May 04, 2019	Feb. 02, 2019	May 05, 2018
Current assets:
Cash and cash equivalents	$ 29,877,000	$ 27,146,000	$ 30,471,000
Accounts receivable, net	180,379,000	194,300,000	168,719,000
Merchandise inventories	1,085,565,000	1,052,306,000	1,055,234,000
Prepaid expenses and other current assets	47,403,000	63,454,000	83,041,000
Total current assets	1,343,224,000	1,337,206,000	1,337,465,000
Operating lease right-of-use assets, net	2,055,733,000	0	0
Property and equipment:
Land and buildings	381,041,000	390,243,000	396,221,000
Leasehold costs and improvements	204,742,000	203,394,000	190,234,000
Furniture, fixtures and equipment	1,067,448,000	1,039,360,000	956,894,000
Construction in progress	14,427,000	23,749,000	13,548,000
Total property and equipment, gross	1,667,658,000	1,656,746,000	1,556,897,000
Less: accumulated depreciation and amortization	(938,896,000)	(907,968,000)	(807,227,000)
Total property and equipment, net	728,762,000	748,778,000	749,670,000
Goodwill	924,134,000	924,134,000	924,134,000
Intangibles, net	157,103,000	200,870,000	218,645,000
Other assets	17,760,000	28,297,000	31,352,000
Total assets	5,226,716,000	3,239,285,000	3,261,266,000
Current liabilities:
Current portion of long-term debt	246,377,000	254,377,000	179,250,000
Current portion of operating lease liabilities	121,878,000	0	0
Accounts payable	820,489,000	816,880,000	799,524,000
Accrued expenses and other current liabilities	485,168,000	506,431,000	461,201,000
Total current liabilities	1,673,912,000	1,577,688,000	1,439,975,000
Long-term operating lease liabilities	1,966,688,000	0	0
Long-term debt	1,543,537,000	1,546,471,000	2,507,960,000
Deferred income taxes	44,934,000	36,937,000	52,531,000
Other noncurrent liabilities	145,954,000	280,273,000	272,203,000
Commitments and Contingencies (see Note 8)
Contingently redeemable common stock, par value $0.01; no shares issued and outstanding at May 4, 2019 or February 2, 2019; 1,736 shares issued and outstanding at May 5, 2018	0	0	13,202,000
STOCKHOLDERS’ DEFICIT
Common stock, par value $0.01; 305,000 shares authorized, 139,836 shares issued and 139,054 outstanding at May 4, 2019; 138,099 shares issued and 137,317 outstanding at February 2, 2019; and 87,073 shares issued and outstanding at May 5, 2018	1,398,000	1,381,000	871,000
Additional paid-in capital	752,218,000	742,072,000	360,000
Accumulated deficit	(867,746,000)	(915,113,000)	(1,028,237,000)
Accumulated other comprehensive income (loss)	(15,070,000)	(11,315,000)	2,401,000
Treasury stock, at cost, 782 shares at May 4, 2019 and February 2, 2019 and no shares at May 5, 2018	(19,109,000)	(19,109,000)	0
Total stockholders’ deficit	(148,309,000)	(202,084,000)	(1,024,605,000)
Total liabilities and stockholders’ deficit	$ 5,226,716,000	$ 3,239,285,000	$ 3,261,266,000

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	May 04, 2019	Feb. 02, 2019	May 05, 2018
Statement of Financial Position [Abstract]
Contingently redeemable common stock, par value (in dollar per share)	$ 0.01	$ 0.01	$ 0.01
Contingently redeemable common stock, issued (in shares)	0	0	1,736,000
Contingently redeemable common stock, outstanding (in shares)	0	0	1,736,000
Common stock, par value (in dollar per share)	$ 0.01	$ 0.01	$ 0.01
Common stock, authorized (in shares)	305,000,000	305,000,000	305,000,000
Common stock, issued (in shares)	139,836,000	138,099,000	87,073,000
Common stock, outstanding (in shares)	139,054,000	137,317,000	87,073,000
Treasury stock, at cost (in shares)	782,000	782,000	0

Consolidated Statements Of Oper

Consolidated Statements Of Operations And Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	May 04, 2019	May 05, 2018
Total revenues	$ 3,143,136	$ 3,061,697
Cost of sales	2,568,977	2,510,338
Selling, general and administrative expenses	501,181	485,572
Preopening expense	2,296	1,217
Operating income	70,682	64,570
Interest expense, net	27,789	45,203
Income from continuing operations before income taxes	42,893	19,367
Provision for income taxes	6,808	5,066
Income from continuing operations	36,085	14,301
Loss from discontinued operations, net of income taxes	(287)	(164)
Net income	$ 35,798	$ 14,137
Income per share attributable to common stockholders—basic:
Income from continuing operations (in dollar per share)	$ 0.26	$ 0.16
Loss from discontinued operations (in dollar per share)	0	0
Net income (in dollar per share)	0.26	0.16
Income per share attributable to common stockholders—diluted:
Income from continuing operations (in dollar per share)	0.26	0.15
Loss from discontinued operations (in dollar per share)	(0.01)	0
Net income (in dollar per share)	$ 0.25	$ 0.15
Weighted average number of common shares outstanding:
Basic (in shares)	136,810,084	88,553,297
Diluted (in shares)	140,462,572	93,292,262
Other comprehensive income:
Unrealized loss on cash flow hedge, net of income tax of $1,460 and $0, respectively	$ (3,755)	$ 0
Total other comprehensive loss	(3,755)	0
Total comprehensive income	32,043	14,137
Product
Total revenues	3,069,763	2,993,742
Membership
Total revenues	$ 73,373	$ 67,955

Consolidated Statements Of Op_2

Consolidated Statements Of Operations And Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	May 04, 2019	May 05, 2018
Income Statement [Abstract]
Unrealized loss on cash flow hedge, income tax	$ 1,460	$ 0

Consolidated Statement Of Conti

Consolidated Statement Of Contingently Redeemable Common Stock And Stockholders' Deficit - USD ($) shares in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Treasury Stock
Beginning balance (in shares) at Feb. 03, 2018		87,073				0
Beginning balance at Feb. 03, 2018	$ (1,029,857,000)	$ 871,000	$ 2,883,000	$ (1,036,012,000)	$ 2,401,000	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,137,000			14,137,000
Stock compensation expense	970,000		970,000
Options exercised	(2,210,000)		(2,210,000)
Call of shares	(12,000)		(12,000)
Other equity transactions	$ (1,271,000)		(1,271,000)
Ending balance (in shares) at May. 05, 2018	87,073	87,073				0
Ending balance at May. 05, 2018	$ (1,024,605,000)	$ 871,000	360,000	(1,028,237,000)	2,401,000	$ 0
Beginning balance (in shares) at Feb. 03, 2018	1,456
Beginning balance at Feb. 03, 2018	$ 10,438,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Options exercised (in shares)	280
Options exercised	$ 2,792,000
Call of shares	$ (28,000)
Ending balance (in shares) at May. 05, 2018	1,736
Ending balance at May. 05, 2018	$ 13,202,000
Beginning balance (in shares) at Feb. 02, 2019	137,317	138,099				(782)
Beginning balance at Feb. 02, 2019	$ (202,084,000)	$ 1,381,000	742,072,000	(915,113,000)	(11,315,000)	$ (19,109,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	35,798,000			35,798,000
Unrealized loss on cash flow hedge, net of tax	(3,755,000)				(3,755,000)
Common stock issued under stock incentive plans (in shares)		1,737
Common stock issued under stock incentive plans		$ 17,000	(17,000)
Stock compensation expense	3,844,000		3,844,000
Net cash received on option exercises	$ 6,319,000		6,319,000
Ending balance (in shares) at May. 04, 2019	139,054	139,836				(782)
Ending balance at May. 04, 2019	$ (148,309,000)	$ 1,398,000	$ 752,218,000	$ (867,746,000)	$ (15,070,000)	$ (19,109,000)
Beginning balance (in shares) at Feb. 02, 2019	0
Beginning balance at Feb. 02, 2019	$ 0
Ending balance (in shares) at May. 04, 2019	0
Ending balance at May. 04, 2019	$ 0

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	May 04, 2019	May 05, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 35,798	$ 14,137
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	38,670	41,422
Amortization of debt issuance costs and accretion of original issue discount	1,323	2,116
Impairment charge for asset held for sale	0	3,000
Other non-cash items, net	287	1,292
Stock-based compensation expense	3,844	970
Deferred income tax provision	4,501	(2,007)
Increase (decrease) in cash due to changes in:
Accounts receivable	13,921	22,037
Merchandise inventories	(33,259)	(36,096)
Prepaid expenses and other current assets	20,913	9,778
Other assets	(436)	(2,384)
Accounts payable	8,496	58,324
Change in book overdrafts	(9,012)	(32,802)
Accrued expenses	(41,801)	(13,449)
Other noncurrent liabilities	1,691	(981)
Net cash provided by operating activities	44,936	65,357
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property and equipment, net of disposals	(36,534)	(42,145)
Net cash used in investing activities	(36,534)	(42,145)
CASH FLOWS FROM FINANCING ACTIVITIES
Payments on long term debt	(3,844)	(19,793)
Proceeds from ABL Facility	245,000	396,000
Payments on ABL Facility	(253,000)	(403,000)
Net cash received from stock option exercises	6,319	582
Other financing activities	(146)	(1,484)
Net cash used in financing activities	(5,671)	(27,695)
Net increase (decrease) in cash and cash equivalents	2,731	(4,483)
Cash and cash equivalents at beginning of period	27,146	34,954
Cash and cash equivalents at end of period	29,877	30,471
Supplemental cash flow information:
Interest paid	25,081	54,947
Income taxes paid	2,965	1,545
Noncash financing and investing activities:
Deferred offering costs included in accrued expenses	0	2,875
Property additions included in accrued expenses	$ 26,284	$ 13,795

Description of Business

Description of Business	3 Months Ended
	May 04, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business BJ’s is a leading warehouse club operator on the east coast of the United States. As of May 4, 2019 , the Company operated 217 warehouse clubs and 138 gasoline stations, in 16 states. The Company became a publicly traded entity in connection with its initial public offering (“IPO”) of common stock and listing on the New York Stock Exchange (“NYSE”) under the ticker symbol “BJ.” The Company follows, and reports based, on the National Retail Federation’s fiscal calendar. The thirteen -week periods ended May 4, 2019 and May 5, 2018 are referred to as the first quarter of fiscal year 2019 and fiscal year 2018 , respectively.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	May 04, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The accompanying interim financial statements of BJ’s Wholesale Club Holdings, Inc. are unaudited and, in the opinion of management, reflect all normal recurring adjustments considered necessary for a fair statement of the Company’s financial statements in accordance with generally accepted accounting principles in the United States of America ("GAAP"). The consolidated balance sheet as of February 2, 2019 is derived from the audited consolidated balance sheet as of that date. The unaudited results of operations for the first quarter of fiscal year 2019 are not necessarily indicative of future results or results to be expected for fiscal year 2019. The Company’s business, in common with the business of retailers generally, is subject to seasonal influences. The Company’s sales and operating income have typically been highest in the fourth quarter holiday season and lowest in the first quarter of each fiscal year. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes thereto included in our Annual Report on Form 10-K for fiscal year 2018, as filed with the Securities Exchange Commission (the "SEC") on March 25, 2019. Initial Public Offering On July 2, 2018, the Company completed the IPO, in which the Company issued and sold 43,125,000 shares of its common stock (including 5,625,000 shares of common stock that were subject to the underwriters’ option to purchase additional shares) at an initial public offering price of $17.00 per share. The Company received total aggregate proceeds of $685.9 million net of underwriters’ discounts, commissions and other transaction expenses, which totaled $47.2 million . On July 2, 2018, the Company used the net proceeds from the IPO to extinguish the total outstanding balance of $623.2 million of its senior secured second lien term loan facility (the “Second Lien Term Loan”). See Note 6, Debt and Credit Arrangements, for further discussion regarding the Second Lien Term Loan extinguishment. On October 1, 2018, certain selling stockholders completed the registered sale of 32,200,000 shares of the Company’s common stock at a public offering price of $26.00 per share. Of the 32,200,000 shares sold, 4,200,000 shares represented the underwriters’ exercise of their overallotment option. The Company did not receive any proceeds from this offering or incur underwriters’ discounts or commissions on the sale. The Company incurred transaction costs of $2.4 million primarily for legal, accounting and printer services related to the offering. On March 11, 2019, certain selling stockholders completed the registered sale (the "March 2019 Secondary Offering") of 19,550,000 shares of the Company's common stock at a public offering price of $25.08 per share. Of the 19,550,000 shares sold, 2,550,000 shares represented the underwriters’ exercise of their overallotment option. The Company did not receive any proceeds from the March 2019 Secondary Offering or incur underwriters’ discounts or commissions on the sale. The Company incurred transaction costs of $1.2 million primarily for legal, accounting and printer services related to the offering. Stock Split On June 15, 2018, the Company effected a seven -to-one stock split of its issued and outstanding shares of common stock and proportional adjustment to the existing conversion ratios for each series of the Company’s Contingently Redeemable Common Stock (see Note 9). Accordingly, all shares and per share amounts for all periods presented in the accompanying consolidated financial statements and notes thereto have been adjusted retroactively, where applicable, to reflect this stock split and adjustment of the contingently redeemable common stock conversion ratios. Deferred Offering Costs The Company capitalized certain legal, professional, accounting and other third-party fees that were directly associated with the IPO as deferred offering costs. Upon the consummation of the IPO, $47.2 million was recorded in stockholders’ deficit as a reduction of additional paid-in capital. Recent Accounting Pronouncements The accounting policies the Company follows are set forth in the Company’s audited financial statements for fiscal year 2018. There have been no material changes to these accounting policies, except as noted below for new accounting pronouncements adopted at the beginning of fiscal year 2019 . Leases (ASU 2016-2) In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-2, Leases (FASB Accounting Standards Codification (“ASC”) Topic 842, Leases) which requires recognition on the balance sheet for the rights and obligations created by leases with terms greater than twelve months. Consistent with prior GAAP, the recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee will depend primarily on its classification as a finance or operating lease. However, unlike prior GAAP—which required only finance (formerly capital) leases to be recognized on the balance sheet—the new ASU requires both types of leases to be recognized on the balance sheet. The ASU took effect for public companies for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. This standard can be applied at the beginning of the earliest period presented using the modified retrospective method, which includes certain practical expedients that an entity may elect to apply. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases and ASU 2018-11, Leases (Topic 842): Targeted Improvements, which make improvements to ASC 842 and allow entities to apply the new standards and not restate comparative periods in transition to ASC 842 and instead report the comparative periods under ASC 840. The Company adopted ASC 842 using the modified retrospective method at the beginning of the first quarter of fiscal year 2019. In accordance with ASC 842, the Company did not restate comparative periods in transition to ASC 842 and instead reported comparative periods under ASC 840. Adoption of the standard resulted in the initial recognition of $2.040 billion of operating lease right-of-use (“ROU”) assets and $2.071 billion of operating lease liabilities as of February 3, 2019. The difference between the assets and liabilities is attributable to the reclassification of certain existing lease-related assets and liabilities as an adjustment to the ROU assets. Finance leases were not impacted by the adoption of the new guidance as finance lease liabilities and the corresponding assets were recorded on the consolidated balance sheet under the previous guidance. The adoption of this standard did not have a material impact on the Company’s interim unaudited consolidated statements of operations and comprehensive income, statements of contingently redeemable common stock and stockholders’ deficit or cash flows, and had a $11.6 million impact on beginning retained earnings in fiscal year 2019 primarily associated with the impact of the Company's deferred gain on prior years' sale leaseback transactions, net of tax. The Company elected the transition package of practical expedients permitted within the new standard which, among other things, allowed it to carry-forward the historical lease classification. The Company did not elect the practical expedient to use hindsight in determining the lease term and in assessing impairment of ROU assets and therefore continued to utilize lease terms determined under previous lease guidance. Please refer to Note 4 – Leases for further discussion on the Company's leases. Non-Employee Share-Based Compensation (ASU 2018-07) In June 2018, the FASB issued ASU 2018-07 Improvements to Non-employee Share-Based Payment Accounting which updates the guidance to Compensation—Stock Compensation (Topic 718). The updated guidance aligns the measurement and classification guidance for share-based payments to non-employees with the guidance for share-based payments to employees, with certain exceptions. The Company adopted ASU 2018-07 at the beginning of the first quarter of fiscal year 2019 and the adoption of this standard did not have a material impact on its consolidated financial statements. Recently Issued Accounting Pronouncements Fair Value Measurement (ASU 2018-13) In August 2018, the FASB issued ASU 2018-13 Changes to the Disclosure Requirements for Fair Value Measurement which updates the guidance to Fair Value Measurement (Topic 820). The updated guidance modifies the disclosure requirements for fair value measurements by removing, modifying or adding certain disclosures. The updated guidance is effective for fiscal periods beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. The Company does not anticipate the updated guidance will have a material impact on its consolidated financial statements. Intangibles-Goodwill and Other-Internal-Use Software (ASU 2018-15) In August 2018, the FASB issued ASU 2018-15 Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40) The update related to accounting for implementation costs incurred in a cloud computing arrangement that is a service contract. The update allows entities who are customers in hosting arrangements that are service contracts to apply the existing internal-use software guidance to determine which implementation costs to capitalize as an asset related to the service contract and which costs to expense. The update specifies classification for capitalizing implementation costs and related amortization expense within the financial statements and requires additional disclosures. The updated guidance is effective for fiscal reporting periods, including interim reporting within those periods, beginning after December 15, 2019. Early adoption is permitted and can be applied either retrospectively or prospectively. The Company is currently evaluating the transition methods and the impact of the adoption of this standard on its consolidated financial statements. Goodwill Impairment (ASU 2017-04) In January 2017, the FASB issued ASU 2017-04. ASU 2017-04 provides amendments to ASC 350, "Intangibles - Goodwill and Other", which eliminate Step 2 from the goodwill impairment test. Entities should perform their goodwill impairment tests by comparing the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value. The amendments in this update are effective prospectively during interim and annual periods beginning after December 15, 2019, with early adoption permitted. The Company does not believe adoption of this standard will have a material effect on the its consolidated financial statements. Credit Losses (ASU 2016-13) In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). This new guidance will change how entities account for credit impairment for trade and other receivables, as well as for certain financial assets and other instruments. ASU 2016-13 will replace the current "incurred loss" model with an "expected loss" model. Under the "incurred loss" model, a loss (or allowance) is recognized only when an event has occurred (such as a payment delinquency) that causes the entity to believe that a loss is probable (i.e., that it has been "incurred"). Under the "expected loss" model, an entity will recognize a loss (or allowance) upon initial recognition of the asset that reflects all future events that will lead to a loss being realized, regardless of whether it is probable that the future event will occur. The "incurred loss" model considers past events and current conditions, while the "expected loss" model includes expectations for the future which have yet to occur. ASU 2016-13 is effective for public companies for fiscal years beginning after December 15, 2019 with early adoption permitted for fiscal years beginning after December 15, 2018, including interim periods therein. The standard will require entities to record a cumulative-effect adjustment to the balance sheet as of the beginning of the first reporting period in which the guidance is effective. The Company does not believe adoption of this standard will have a material impact on its consolidated financial statements.

Revenue Recognition

Revenue Recognition	3 Months Ended
	May 04, 2019
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition Performance Obligations The Company identifies each distinct performance obligation to transfer goods (or bundle of goods) or services. The Company recognizes revenue when (or as) it satisfies a performance obligation by transferring control of the goods or services to the customer. Merchandise sales—The Company recognizes sale of merchandise at clubs and gas stations at the point of sale when the customer takes possession of the goods and tenders payment. At point of sale, the performance obligation is satisfied because control of the merchandise transfers to the customer. Sales of merchandise at the Company’s clubs and gas stations, excluding sales taxes, represent approximately 96% of the Company’s net sales and approximately 94% of the Company’s total revenues. Sales taxes are recorded as a liability at the point of sale. Revenue is recorded at the point of sale based on the transaction price on the merchandise tag, net of any applicable discounts, sales taxes and expected refunds. For e-commerce sales, the Company recognizes sales when control of the merchandise is transferred to the customer, which is typically at the shipping point. BJ’s Perks Rewards and My BJ's Perks programs— The Company’s BJ’s Perks Rewards ® membership program allows participating members to earn 2% cash back, up to a maximum of $500 per year, on qualified purchases made at BJ’s. The Company also offers a co-branded credit card program, the My BJ’s Perks ® program, which allows My BJ's Perks ® Mastercard credit card holders to earn 3% or 5% cash back on eligible purchases made at BJ’s and 1% or 2% cash back on purchases made with the card outside of BJ’s. Cash back is in the form of electronic awards issued in $20 increments that may be used online or in-club at the register and expire six months from the date issued. Earned awards may be redeemed on future purchases made at the Company. The Company recognizes revenue for earned awards when customers redeem such awards as part of a purchase at one of the Company’s clubs or the Company’s website. The Company accounts for these transactions as multiple element arrangements and allocates the transaction price to separate performance obligations using their relative fair values. The Company includes the fair value of award dollars earned in deferred revenue at the time the award dollars are earned. This liability was $27.6 million at May 4, 2019 and $23.5 million at May 5, 2018. Royalty revenue received in connection with the My BJ's Perks co-brand credit card program is variable consideration and is considered deferred until the card holder makes a purchase. The Company’s total deferred royalty revenue related to the outstanding My BJ’s Perks Rewards was $13.3 million , $13.4 million and $12.7 million at May 4, 2019 , February 2, 2019 and May 5, 2018, respectively. The timing of revenue recognition of these awards dollars is driven by actual customer activities, such as redemptions and expirations. The Company expects to recognize $10.4 million of the deferred revenue at May 4, 2019 in fiscal year 2019 , and the remainder will be recognized in the years thereafter. Membership—The Company charges a membership fee to its customers. That fee allows customers to shop in the Company’s clubs, shop on the Company’s website and purchase gas at the Company’s gas stations for the duration of the membership, which is generally 12 months . Because the Company has the obligation to provide access to its clubs, website and gas stations for the duration of the membership term, the Company recognizes membership fees on a straight-line basis over the life of the membership. The Company’s deferred revenue related to membership fees was $141.6 million , $134.4 million and $133.9 million at May 4, 2019 , February 2, 2019 and May 5, 2018, respectively. Gift Card Programs—The Company sells BJ’s gift cards that allow the customer to redeem the card for future purchases equal to the amount of the original purchase price of the gift card. Revenue from gift card sales is recognized upon redemption of the gift card because the Company’s performance obligation to redeem the gift card for merchandise is satisfied when the gift card is redeemed. Historically, the Company has recognized breakage under the remote model, which recognizes breakage income when the likelihood of the customer exercising its remaining rights becomes remote. Under the new guidance, the Company recognizes breakage in proportion to its rate of gift card redemptions. This change in breakage recognition model had an immaterial impact on the Company’s results of operations for each of the first quarters of fiscal year 2019 and fiscal year 2018, respectively. Deferred revenue related to gift cards was $8.0 million , $9.1 million and $8.1 million at May 4, 2019 , February 2, 2019 and May 5, 2018, respectively. The Company recognized $11.1 million and $11.3 million of revenue from gift card redemptions in the first quarter of fiscal year 2019 and fiscal year 2018, respectively. Disaggregation of Revenue The Company’s club retail operations, which represent substantially all the consolidated total revenues, are the Company’s only reportable segment. All the Company’s identifiable assets are in the United States. The Company does not have significant sales outside the United States, nor does any customer represent more than 10% of total revenues for any period presented. The following table summarizes the Company’s percentage of net sales disaggregated by category for the first quarter of fiscal year 2019 and fiscal year 2018: Thirteen Weeks Ended May 4, 2019 May 5, 2018 Edible Grocery 24% 24% Perishables 28% 29% Non-Edible Grocery 22% 22% General Merchandise 13% 12% Gasoline and Other Ancillary Services 13% 13%

Leases

Leases	3 Months Ended
	May 04, 2019
Leases [Abstract]
Leases	Leases The Company adopted ASC 842 as of February 3, 2019, using the modified retrospective method and applying transitional relief allowing entities to initially apply the requirements at the adoption date by recognizing a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, results and disclosures for the reporting periods beginning on February 3, 2019 are reported and presented under ASC 842, while prior period amounts and disclosures are not adjusted and continue to be reported and presented under ASC 840. As part of the adoption, the Company elected the following practical expedients: 1. A package of practical expedients allowing the Company to: a) carry forward its historical lease classification; b) avoid reassessing whether any expired or existing contracts are or contain leases; and c) avoid reassessing initial direct costs for any existing leases. 2. A practical expedient related to land easements, allowing the Company to carry forward the accounting treatment for land easements on existing agreements and eliminating the need to reassess existing lease contracts to determine if land easements are separate leases under ASC 842. The Company did not elect the following practical expedients: 1. A practical expedient that would allow the Company to use hindsight in determining the lease term and to assess impairment of the entity's ROU assets, since election of this expedient could make adoption more complex given that re-evaluation of the lease term. 2. A practical expedient allowing the Company to not separate lease components from nonlease components (e.g., common area maintenance costs) since currently the Company does not combine lease and nonlease components for any of its real estate leases. In accordance with ASC 842 the Company determines if an arrangement is a lease at inception or modification of a contract, and classifies each lease as either operating or finance lease at commencement. The Company only reassesses lease classification subsequent to commencement upon a change to the expected lease term or the contract being modified. The Company has operating and finance leases for the Company's clubs, and operating leases for the Company's distribution centers, corporate office, and stand alone gas stations. Operating leases, net of accumulated amortization, are included in operating lease ROU assets, and current and noncurrent operating lease liabilities, on the interim unaudited consolidated balance sheet. Finance leases are included in property and equipment, accrued expenses and other current liabilities, and other noncurrent liabilities on the interim unaudited consolidated balance sheets. Lease liabilities are calculated using the effective interest method, regardless of classification, while the amortization of the ROU assets varies depending upon classification. Finance lease classification results in a front-loaded expense recognition pattern over the lease term, which amortizes the ROU asset by recognizing interest expense and amortization expense as separate components of lease expense and calculates the amortization expense component on a straight-line basis. Conversely, operating lease classification results in a straight-line expense recognition pattern over the lease term and recognizes lease expense as a single expense component, which results in amortization of the ROU asset that equals the difference between lease expense and interest expense. Lease expense for finance and operating leases are included in selling general and administrative expense on the interim unaudited consolidated statement of operations and comprehensive income. Leases with an initial term of twelve months or less are not recorded on the balance sheet. The Company is generally obligated for the cost of property taxes, insurance, and maintenance relating to its leases, which are often variable lease payments. Such costs are presented as occupancy costs for finance and operating leases included in selling, general and administrative expense on the interim unaudited consolidated statement of operations and comprehensive income. Certain of the Company's lease agreements provide for lease payments based on future sales volumes at the leased location, or include rental payments adjusted periodically for inflation or based on an index, which are not measurable at the inception of the lease. The Company expenses such variable amounts in the period incurred, which is the period in which it becomes probable that the specified target that triggers the variable lease payments will be achieved. The Company's lease agreements do not contain any material residual value guarantees or material restrictive covenants. ROU assets represent the right to use an underlying asset for the lease term, and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at the commencement date based on the present value of lease payments over the reasonably certain lease term. The operating lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Where the Company's leases do not provide an implicit rate, the Company uses a collateralized incremental borrowing rate ("IBR") to determine the present value of lease payments. The collateralized IBR is based on a synthetic credit rating that is externally prepared on an annual basis at the measurement date, and that the Company adjusts quarterly with a yield curve that approximates the Company's market risk profile. In calculating the present value of the lease payments, the Company has elected to utilize its estimated IBR based on the original lease term and not the remaining lease term. The initial primary term of the Company's operating leases ranges from 5 to 44 years , with most of these leases having an initial term of 20 years . The initial primary term of the Company's two finance leases are 20 years . The adoption of ASC 842 resulted in the initial recognition of $2.040 billion of operating lease ROU assets and $2.071 billion of operating lease liabilities as of February 3, 2019. The difference between the assets and liabilities is attributable to the reclassification of certain existing lease-related assets and liabilities as an adjustment to the right-of-use assets. The Company derecognized assets and liabilities of $94.7 million and $125.8 million , respectively, in connection with the non-cash transitional adjustment. As a result of adopting ASC 842, the Company also recorded a charge to retained earnings of $11.6 million , primarily associated with the net of tax impact of the Company's deferred gain on prior years' sale leaseback transactions. Finance leases were not impacted by the adoption of the new guidance, as finance lease liabilities and the corresponding assets were recorded on the consolidated balance sheet under the previous guidance. The adoption of this standard did not materially impact the Company's consolidated statements of operations and comprehensive income, or the Company's consolidated statements of cash flows. As of May 4, 2019, assets recorded under finance leases were $19.2 million and accumulated amortization associated with finance leases was $8.6 million , while ROU assets recorded as operating leases were $2.092 billion and accumulated amortization associated with operating leases was $35.8 million . In the first quarter of fiscal year 2019 the Company recorded a non-cash increase of $49.4 million to ROU assets and liabilities resulting from lease reassessments. The following table is a summary of the Company’s components of total lease costs for the first quarter of fiscal year 2019 (in thousands): Operating lease cost $ 78,434 Finance lease cost: Amortization of lease assets 282 Interest on lease liabilities 631 Total finance lease costs 913 Variable lease costs 93 Total lease costs $ 79,440 The weighted average remaining lease term and weighted average discount rate for operating and finance leases as of May 4, 2019 were as follows: Operating Leases Finance Leases Weighted average remaining lease term in years 9.2 10.1 Weighted average discount rate percentage 8.3 % 8.3 % Cash paid for amounts included in the measurement of lease liabilities were as follows (in thousands): Operating cash flows paid for operating leases $ 77,802 Operating cash flows paid for interest portion of finance leases 631 Financing cash flows paid for principal portion of finance leases 147 Future lease commitments to be paid and received by the Company as of May 4, 2019 were as follows (in thousands): Fiscal year Operating Leases Finance Leases 2019 (a) $ 207,601 $ 2,077 2020 309,055 3,412 2021 301,594 3,439 2022 286,136 3,439 2023 267,813 3,439 Thereafter 1,799,551 20,280 Total future minimum operating lease payments 3,171,750 36,086 Less: imputed interest 1,083,184 19,406 Present value of operating lease liabilities $ 2,088,566 $ 16,680 (a) Represents the remainder of fiscal year 2019 which excludes the thirteen weeks ended May 4, 2019. As of May 4, 2019, the Company had certain executed real estate and gas station leases that have not yet commenced and therefore are not reflected in the tables above. These leases are expected to commence between fiscal year 2019 and the fiscal year ending January 30, 2021 with lease terms ranging from 10 years to 25 years . The following table represents the Company's lease commitments under its previous presentation of its operating and finance lease agreements as of February 2, 2019 (in thousands): Fiscal Year Operating Leases Finance Leases 2019 $ 309,785 $ 4,510 2020 310,956 4,807 2021 299,410 4,833 2022 282,841 4,894 2023 264,363 4,956 Thereafter 1,778,207 34,377 Total $ 3,245,562 $ 58,377
Leases	Leases The Company adopted ASC 842 as of February 3, 2019, using the modified retrospective method and applying transitional relief allowing entities to initially apply the requirements at the adoption date by recognizing a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, results and disclosures for the reporting periods beginning on February 3, 2019 are reported and presented under ASC 842, while prior period amounts and disclosures are not adjusted and continue to be reported and presented under ASC 840. As part of the adoption, the Company elected the following practical expedients: 1. A package of practical expedients allowing the Company to: a) carry forward its historical lease classification; b) avoid reassessing whether any expired or existing contracts are or contain leases; and c) avoid reassessing initial direct costs for any existing leases. 2. A practical expedient related to land easements, allowing the Company to carry forward the accounting treatment for land easements on existing agreements and eliminating the need to reassess existing lease contracts to determine if land easements are separate leases under ASC 842. The Company did not elect the following practical expedients: 1. A practical expedient that would allow the Company to use hindsight in determining the lease term and to assess impairment of the entity's ROU assets, since election of this expedient could make adoption more complex given that re-evaluation of the lease term. 2. A practical expedient allowing the Company to not separate lease components from nonlease components (e.g., common area maintenance costs) since currently the Company does not combine lease and nonlease components for any of its real estate leases. In accordance with ASC 842 the Company determines if an arrangement is a lease at inception or modification of a contract, and classifies each lease as either operating or finance lease at commencement. The Company only reassesses lease classification subsequent to commencement upon a change to the expected lease term or the contract being modified. The Company has operating and finance leases for the Company's clubs, and operating leases for the Company's distribution centers, corporate office, and stand alone gas stations. Operating leases, net of accumulated amortization, are included in operating lease ROU assets, and current and noncurrent operating lease liabilities, on the interim unaudited consolidated balance sheet. Finance leases are included in property and equipment, accrued expenses and other current liabilities, and other noncurrent liabilities on the interim unaudited consolidated balance sheets. Lease liabilities are calculated using the effective interest method, regardless of classification, while the amortization of the ROU assets varies depending upon classification. Finance lease classification results in a front-loaded expense recognition pattern over the lease term, which amortizes the ROU asset by recognizing interest expense and amortization expense as separate components of lease expense and calculates the amortization expense component on a straight-line basis. Conversely, operating lease classification results in a straight-line expense recognition pattern over the lease term and recognizes lease expense as a single expense component, which results in amortization of the ROU asset that equals the difference between lease expense and interest expense. Lease expense for finance and operating leases are included in selling general and administrative expense on the interim unaudited consolidated statement of operations and comprehensive income. Leases with an initial term of twelve months or less are not recorded on the balance sheet. The Company is generally obligated for the cost of property taxes, insurance, and maintenance relating to its leases, which are often variable lease payments. Such costs are presented as occupancy costs for finance and operating leases included in selling, general and administrative expense on the interim unaudited consolidated statement of operations and comprehensive income. Certain of the Company's lease agreements provide for lease payments based on future sales volumes at the leased location, or include rental payments adjusted periodically for inflation or based on an index, which are not measurable at the inception of the lease. The Company expenses such variable amounts in the period incurred, which is the period in which it becomes probable that the specified target that triggers the variable lease payments will be achieved. The Company's lease agreements do not contain any material residual value guarantees or material restrictive covenants. ROU assets represent the right to use an underlying asset for the lease term, and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at the commencement date based on the present value of lease payments over the reasonably certain lease term. The operating lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Where the Company's leases do not provide an implicit rate, the Company uses a collateralized incremental borrowing rate ("IBR") to determine the present value of lease payments. The collateralized IBR is based on a synthetic credit rating that is externally prepared on an annual basis at the measurement date, and that the Company adjusts quarterly with a yield curve that approximates the Company's market risk profile. In calculating the present value of the lease payments, the Company has elected to utilize its estimated IBR based on the original lease term and not the remaining lease term. The initial primary term of the Company's operating leases ranges from 5 to 44 years , with most of these leases having an initial term of 20 years . The initial primary term of the Company's two finance leases are 20 years . The adoption of ASC 842 resulted in the initial recognition of $2.040 billion of operating lease ROU assets and $2.071 billion of operating lease liabilities as of February 3, 2019. The difference between the assets and liabilities is attributable to the reclassification of certain existing lease-related assets and liabilities as an adjustment to the right-of-use assets. The Company derecognized assets and liabilities of $94.7 million and $125.8 million , respectively, in connection with the non-cash transitional adjustment. As a result of adopting ASC 842, the Company also recorded a charge to retained earnings of $11.6 million , primarily associated with the net of tax impact of the Company's deferred gain on prior years' sale leaseback transactions. Finance leases were not impacted by the adoption of the new guidance, as finance lease liabilities and the corresponding assets were recorded on the consolidated balance sheet under the previous guidance. The adoption of this standard did not materially impact the Company's consolidated statements of operations and comprehensive income, or the Company's consolidated statements of cash flows. As of May 4, 2019, assets recorded under finance leases were $19.2 million and accumulated amortization associated with finance leases was $8.6 million , while ROU assets recorded as operating leases were $2.092 billion and accumulated amortization associated with operating leases was $35.8 million . In the first quarter of fiscal year 2019 the Company recorded a non-cash increase of $49.4 million to ROU assets and liabilities resulting from lease reassessments. The following table is a summary of the Company’s components of total lease costs for the first quarter of fiscal year 2019 (in thousands): Operating lease cost $ 78,434 Finance lease cost: Amortization of lease assets 282 Interest on lease liabilities 631 Total finance lease costs 913 Variable lease costs 93 Total lease costs $ 79,440 The weighted average remaining lease term and weighted average discount rate for operating and finance leases as of May 4, 2019 were as follows: Operating Leases Finance Leases Weighted average remaining lease term in years 9.2 10.1 Weighted average discount rate percentage 8.3 % 8.3 % Cash paid for amounts included in the measurement of lease liabilities were as follows (in thousands): Operating cash flows paid for operating leases $ 77,802 Operating cash flows paid for interest portion of finance leases 631 Financing cash flows paid for principal portion of finance leases 147 Future lease commitments to be paid and received by the Company as of May 4, 2019 were as follows (in thousands): Fiscal year Operating Leases Finance Leases 2019 (a) $ 207,601 $ 2,077 2020 309,055 3,412 2021 301,594 3,439 2022 286,136 3,439 2023 267,813 3,439 Thereafter 1,799,551 20,280 Total future minimum operating lease payments 3,171,750 36,086 Less: imputed interest 1,083,184 19,406 Present value of operating lease liabilities $ 2,088,566 $ 16,680 (a) Represents the remainder of fiscal year 2019 which excludes the thirteen weeks ended May 4, 2019. As of May 4, 2019, the Company had certain executed real estate and gas station leases that have not yet commenced and therefore are not reflected in the tables above. These leases are expected to commence between fiscal year 2019 and the fiscal year ending January 30, 2021 with lease terms ranging from 10 years to 25 years . The following table represents the Company's lease commitments under its previous presentation of its operating and finance lease agreements as of February 2, 2019 (in thousands): Fiscal Year Operating Leases Finance Leases 2019 $ 309,785 $ 4,510 2020 310,956 4,807 2021 299,410 4,833 2022 282,841 4,894 2023 264,363 4,956 Thereafter 1,778,207 34,377 Total $ 3,245,562 $ 58,377

Related Party Transactions

Related Party Transactions	3 Months Ended
	May 04, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Management Agreement The Company had a management services agreement with the Sponsors for ongoing consulting and advisory services that terminated upon the consummation of the Company’s IPO. The management services agreement provided for the aggregate payment of management fees to the Sponsors (or advisory affiliates thereof) of $8.0 million per year, plus out of pocket expenses. The Company incurred no management fees for the first quarter of fiscal year 2019 and incurred $2.0 million in such fees for the first quarter of fiscal year 2018. Management fees and expenses are reported in selling, general and administrative expenses (“SG&A”) in the consolidated statements of operations and comprehensive income. One of the Company’s suppliers, Advantage Solutions Inc. is controlled by affiliates of the Sponsors. Advantage Solutions Inc. is principally a provider of in-club product demonstration and sampling services, and the Company also engages them from time to time to provide ancillary support services, including for example, seasonal gift wrapping, on-floor sales assistance and display maintenance. The Company incurred approximately $11.8 million and $11.0 million of costs payable to Advantage Solutions Inc. for services rendered during the first quarter of fiscal year 2019 and fiscal year 2018, respectively. The demonstration and sampling service fees are fully funded by merchandise vendors who participate in the program. The Company believes the terms obtained or consideration paid or received, as applicable, in connection with the transactions were comparable to terms available or amounts that would be paid or received, as applicable, in arms’-length transactions with unrelated parties.

Debt and Credit Arrangements

Debt and Credit Arrangements	3 Months Ended
	May 04, 2019
Debt Disclosure [Abstract]
Debt and Credit Arrangements	Debt and Credit Arrangements Debt consisted of the following at May 4, 2019 , February 2, 2019 and May 5, 2018 (in thousands): May 4, February 2, May 5, ABL Facility $ 281,000 $ 289,000 $ 210,000 First Lien Term Loan 1,526,201 1,530,045 1,892,546 Second Lien Term Loan — — 623,224 Unamortized debt discount and debt issuance cost (17,287 ) (18,197 ) (38,560 ) Less: current portion (246,377 ) (254,377 ) (179,250 ) Long-term debt $ 1,543,537 $ 1,546,471 $ 2,507,960 ABL Facility On August 17, 2018, the Company amended and restated the senior secured asset based revolving credit and term facility (the "ABL Facility") to extend the maturity date from February 3, 2022 to August 17, 2023 and reduce the applicable interest rates and letter of credit fees on the facility. Total fees associated with the refinancing were approximately $1.0 million . The Company capitalized approximately $0.9 million of new debt issuance costs and had immaterial write-offs for previously capitalized debt issuance costs and third-party fees. The ABL Facility is comprised of a $950.0 million revolving credit facility and a $50.0 million term loan. The ABL Facility is secured on a senior basis by certain “liquid assets” of the Company and secured on a junior basis by certain “fixed assets” of the Company. The $50.0 million term loan payment terms are restricted in that the term loan cannot be repaid unless all loans outstanding under the ABL Facility are repaid, and once repaid, cannot be re-borrowed. The availability under the $950.0 million revolving credit facility is restricted based on eligible monthly merchandise inventories and receivables as defined in the facility agreement. As amended, interest on the revolving credit facility is calculated either at LIBOR plus a range of 125 to 175 basis points or a base rate plus a range of 25 to 75 basis points; and interest on the term loan is calculated at LIBOR plus a range of 200 to 250 basis points or a base rate plus a range of 100 to 150 basis points, in all cases based on excess availability. The applicable spread of LIBOR and base rate loans at all levels of excess availability steps down by 12.5 basis points upon achieving total net leverage of 3.00 to 1.00. The ABL Facility also provides a sub-facility for issuances of letters of credit subject to certain fees defined in the ABL Facility agreement. The ABL Facility is subject to various commitment fees during the term of the facility based on utilization of the revolver. At May 4, 2019 , there was $281.0 million outstanding in loans under the ABL Facility and $29.2 million in outstanding letters of credit. At February 2, 2019 , there was $289.0 million outstanding in loans under the ABL Facility and $41.2 million in outstanding letters of credit. At May 5, 2018 , there was $210.0 million outstanding in loans under the ABL Facility and $44.6 million in outstanding letters of credit. As of May 4, 2019 , the interest rate on the revolving credit facility was 3.73% , and borrowing availability was $560.8 million . As of February 2, 2019 , the interest rate on the revolving credit facility was 3.76% , and borrowing availability was $545.6 million . As of May 5, 2018 , the interest rate on the revolving credit facility was 3.42% , and borrowing availability was $620.8 million . First Lien Term Loan On August 13, 2018, the Company amended its senior secured first lien term loan facility (the "First Lien Term Loan") to reduce the applicable interest rates and reduce the principal on the loan. The Company drew $350.0 million under its ABL Facility to fund the transaction. As amended, the First Lien Term Loan has an initial principal amount of $1,537.7 million and interest is calculated either at LIBOR plus 275 to 300 basis points or a base rate plus 175 to 200 basis points based on the Company achieving a net leverage ratio of 3.00 to 1.00. Total fees associated with the refinancing were approximately $1.8 million . The Company wrote-off $4.4 million of previously capitalized deferred debt issuance costs and original issue discount and expensed $1.8 million of new third-party fees. At May 4, 2019 , the interest rate for the First Lien Term Loan was 5.47% . At February 2, 2019 , the interest rate for the First Lien Term Loan was 5.51% . At May 5, 2018 , the interest rate for the First Lien Term Loan was 5.39% . Principal payments on the First Lien Term Loan are required in quarterly installments of 0.25% of the original principal amount with the balance due upon maturity on February 3, 2024. Voluntary prepayments are permitted subject to premium payments. Principal payments must be made on the First Lien Term Loan pursuant to an annual excess cash flow calculation. The First Lien Term Loan is subject to certain affirmative and negative covenants but no financial covenants. It is secured on a senior basis by certain “fixed assets” of the Company and on a junior basis by certain “liquid” assets of the Company. At May 4, 2019 , there was $1,526.2 million outstanding on the First Lien Term Loan. At February 2, 2019 , there was $1,530.0 million outstanding on the First Lien Term Loan. At May 5, 2018 , there was $1,892.5 million outstanding on the First Lien Term Loan. Second Lien Term Loan On July 2, 2018, the Company paid off the Second Lien Term Loan by extinguishing the entire outstanding amount of $623.2 million . In connection with the debt extinguishment, the Company paid a $6.2 million prepayment premium. The Company recorded debt extinguishment charges of $19.2 million in conjunction with the pay down, of which $13.0 million represents the write-off of previously capitalized deferred debt issuance costs associated with the Second Lien Term Loan. There was no balance outstanding on the Second Lien Term Loan as of May 4, 2019 or February 2, 2019 , and a balance of $623.2 million outstanding as of May 5, 2018 . At May 5, 2018 , the interest rate for the Second Lien Term Loan was 9.39% .

Interest Expense, net

Interest Expense, net	3 Months Ended
	May 04, 2019
Other Income and Expenses [Abstract]
Interest Expense, net	Interest Expense, net The following details the components of interest expense for the periods presented (in thousands): Thirteen Weeks Ended May 4, 2019 May 5, 2018 Interest on debt $ 25,851 $ 42,129 Interest on capital lease and financing obligations 631 1,044 Debt issuance costs amortization 696 1,015 Original issue discount amortization 627 1,101 Capitalized interest (16 ) (86 ) Interest expense, net $ 27,789 $ 45,203

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	May 04, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The Company is subject to various claims and pending or threatened lawsuits in the normal course of business. The Company is not currently a party to any legal proceedings that it believes would have a material adverse impact on its financial position, results of operations, or cash flows.

Contingently Redeemable Common

Contingently Redeemable Common Stock	3 Months Ended
	May 04, 2019
Temporary Equity [Abstract]
Contingently Redeemable Common Stock	Contingently Redeemable Common Stock The Company and certain current and former management employees were party to a Management Stockholders Agreement (the “MSA”). All grants of equity by the Company to the employees were governed by the terms of individual equity award agreements and the MSA through the date of the IPO. The MSA specified certain transfer restrictions, tag-along and drag-along rights, put and call rights and various other rights and restrictions applicable to any equity held by employees. The call right permitted the Company to repurchase common stock held by an employee stockholder following a minimum holding period and prior to the expiration of a specified time period following the later of the employee’s termination of employment with the Company or acquisition of the common stock. If the employee’s employment was terminated for cause, the repurchase price was the least of (a) the fair market value as of the repurchase date, (b) the fair market value at issuance or (c) the price paid by the employee stockholder for such shares. If the employee’s employment was terminated other than for cause, the repurchase price was the fair market value as of the repurchase date. The MSA also gave the employees the ability to put any shares back to the Company at fair market value upon death or disability while actively employed. As neither death nor disability while actively employed was a certainty, the shares of common stock held by the employee stockholders were considered to be contingently redeemable common stock and were accounted for outside of stockholders’ equity until the shares of common stock were either repurchased by the Company or the put right terminated. The contingently redeemable common stock was recorded at fair value of the common stock as of the date of issuance. Because meeting the contingency was not probable, $13.2 million of contingently redeemable common stock was recorded on the Company’s consolidated balance sheet related to these agreements as of May 5, 2018 . Both the Company’s repurchase right, and the employee stockholder’s put right terminated upon the consummation of the IPO and reclassified all contingently redeemable common stock to common stock on the Company’s consolidated balance sheet. As of May 4, 2019 and February 2, 2019, there was no contingently redeemable common stock outstanding on the Company’s balance sheet. Prior to the IPO, when the Company exercised its call option to repurchase shares classified outside of stockholders’ equity, it was deemed to be a constructive retirement of the contingently redeemable share for accounting purposes. The Company recorded the excess of the fair value paid to repurchase the share over the carrying value of the contingently redeemable share within additional paid-in capital, as the Company had an accumulated deficit.

Stock Incentive Plans

Stock Incentive Plans	3 Months Ended
	May 04, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Incentive Plans	Stock Incentive Plans On June 13, 2018, the Company’s board of directors adopted, and its stockholders approved, the 2018 Incentive Award Plan (the “2018 Plan”). The 2018 Plan provides for the grant of stock options, restricted stock, dividend equivalents, stock payments, restricted stock units, performance shares, other incentive awards, stock appreciation rights, and cash awards. Prior to the adoption of the 2018 Plan, the Company granted stock-based compensation to employees and non-employee directors, respectively, under the Fourth Amended and Restated 2011 Stock Option Plan of BJ's Wholesale Club, Inc. ("2011 Plan") and the 2012 Stock Option Plan of BJ’s Wholesale Club Holdings, Inc. (“2012 Director Plan”). No further grants will be made under 2011 Plan or the 2012 Director Plan. The 2018 Plan authorizes the issuance of 13,148,058 shares, including 985,369 shares that were reserved but not issued under the 2011 Plan and the 2012 Director Plan. If an award under the 2018 Plan, 2011 Plan or 2012 Director Plan is forfeited, expires or is settled for cash, any shares subject to such award may, to the extent of such forfeiture, expiration or cash settlement, be used again for new grants under the 2018 Plan. Additionally, shares tendered or withheld to satisfy grant or exercise price, or tax withholding obligations associated with an award under the 2018 Plan, the 2011 Plan or the 2012 Director Plan will be added to the shares authorized for grant under the 2018 Plan. The following shares may not be used again for grants under the 2018 Plan: (1) shares subject to a stock appreciation right ("SAR"), that are not issued in connection with the stock settlement of the SAR on its exercise and (2) shares purchased on the open market with the cash proceeds from the exercise of options under the 2018 Plan, 2011 Plan or 2012 Director Plan. The following table summarizes the Company’s stock award activity during the first quarter of fiscal year 2019 (shares in thousands): Stock Options Restricted Stock Restricted Stock Units Shares Weighted Average Exercise Price Shares Weighted Average Grant Date Fair Value Shares Weighted Average Grant Date Fair Value Outstanding, February 2, 2019 6,252 $ 10.09 973 $ 22.14 16 $ 27.59 Granted 725 27.59 796 27.59 — — Exercised/vested (941 ) 5.18 — — — — Forfeited/canceled (1 ) 5.72 — — — — Outstanding, May 4, 2019 6,035 $ 12.96 1,769 $ 24.59 16 $ 27.59 Stock-based compensation expense was $3.8 million and $1.0 million for the first quarter of fiscal year 2019 and fiscal year 2018, respectively. In connection with the IPO, the Company's Board of Directors granted the following new awards to certain employees under the 2018 Plan, subject to vesting: stock options to purchase 2,510 shares of common stock, with an exercise price of $17.00 and restricted stock in the amount of 2,943 shares with a grant date fair value of $22.00 , equivalent to the closing price of the first day of trading. Treasury Shares Acquired on Restricted Stock Awards Upon the vesting of 1,954 thousand restricted stock awards in fiscal year 2018, 782 thousand shares were reacquired to satisfy employees’ tax withholding obligations. These reacquired shares were recorded as $19.1 million of treasury stock and accordingly, reduced the number of common shares outstanding by 782 thousand shares.

Income Taxes

Income Taxes	3 Months Ended
	May 04, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective income tax rate is based on estimated income from continuing operations for the year as well as discrete adjustments, if any, in the applicable quarterly periods. The Company projects the estimated annual effective tax rate for the year to be approximately 27.3% , excluding the tax effect of discrete events. Potential discrete adjustments include tax charges or benefits related to stock-based compensation, changes in tax legislation, settlements of tax audits and changes in uncertain tax positions, among others. The Company’s effective income tax rate from continuing operations was 15.9% and 26.2% for the first quarter of fiscal year 2019 and fiscal year 2018, respectively. The decrease in the effective tax rate for the first quarter of fiscal year 2019 compared to the prior year period is primarily due to stock option windfall tax benefits recorded in the current year period. We are subject to taxation in the U.S. federal and various state taxing jurisdictions. In general, the Company’s tax years from 2014 forward remain open and subject to examination by either the Internal Revenue Service or various state taxing authorities; however, certain ongoing state audits and appeals relate to prior tax years.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	May 04, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date or “exit price.” The inputs used to measure fair value are generally classified into the following hierarchy: Level 1: Unadjusted quoted prices in active markets for identical assets or liabilities. Level 2: Unadjusted quoted prices in active markets for similar assets or liabilities, or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not observable for the asset or liability. Level 3: Unobservable inputs for the asset or liability. The fair value of the Company’s debt was determined based on comparable quoted market prices and on borrowing rates available to the Company at May 4, 2019 , February 2, 2019 and May 5, 2018 . These inputs are considered to be Level 2. At May 4, 2019 , the fair value of total debt was $1,813.8 million compared to a carrying value of $1,807.2 million . At February 2, 2019 , the fair value of total debt was $1,805.9 million compared to a carrying value of $1,819.0 million . At May 5, 2018 , the fair value of total debt was $2,738.5 million compared to a carrying value of $2,725.8 million .

Earnings Per Share

Earnings Per Share	3 Months Ended
	May 04, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table summarizes the computation of basic and diluted net income per share attributable to common stockholders: Thirteen Weeks Ended May 4, 2019 May 5, 2018 Weighted-average common shares outstanding, used for basic computation 136,810,084 88,553,297 Plus: Incremental shares of potentially dilutive securities 3,652,488 4,738,965 Weighted-average number of common and dilutive potential common shares outstanding 140,462,572 93,292,262 Stock options and restricted shares of 286,124 and 209,149 , respectively, were excluded from the computation of diluted earnings for the first quarter of fiscal year 2019, because their inclusion would have been anti-dilutive. Similarly, stock options of 901,572 were excluded from the computation of diluted earnings for the first quarter of fiscal year 2018.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	May 04, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Interest Rate Swaps On November 13, 2018, the Company entered into three forward starting interest rate swaps (the "Interest Rate Swaps"), which became effective on February 13, 2019. The Company has fixed the LIBOR component of $1.2 billion of its floating rate debt at a rate of approximately 3.0% . At May 4, 2019 and February 2, 2019, the Interest Rate Swaps were recorded as a liability of $24.6 million and $19.4 million , respectively, with the net of tax amount recorded in other comprehensive income. The Company elected hedge accounting for the interest rate swap agreements, and as such, the effective portion of the gains and losses was recorded as a component of other comprehensive income. There were $5.2 million of losses recorded in the first quarter of fiscal year 2019 in other comprehensive income. There were no unrealized losses recorded in the first quarter of fiscal year 2018.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	May 04, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying interim financial statements of BJ’s Wholesale Club Holdings, Inc. are unaudited and, in the opinion of management, reflect all normal recurring adjustments considered necessary for a fair statement of the Company’s financial statements in accordance with generally accepted accounting principles in the United States of America ("GAAP"). The consolidated balance sheet as of February 2, 2019 is derived from the audited consolidated balance sheet as of that date. The unaudited results of operations for the first quarter of fiscal year 2019 are not necessarily indicative of future results or results to be expected for fiscal year 2019. The Company’s business, in common with the business of retailers generally, is subject to seasonal influences. The Company’s sales and operating income have typically been highest in the fourth quarter holiday season and lowest in the first quarter of each fiscal year.
Initial Public Offering	Initial Public Offering On July 2, 2018, the Company completed the IPO, in which the Company issued and sold 43,125,000 shares of its common stock (including 5,625,000 shares of common stock that were subject to the underwriters’ option to purchase additional shares) at an initial public offering price of $17.00 per share. The Company received total aggregate proceeds of $685.9 million net of underwriters’ discounts, commissions and other transaction expenses, which totaled $47.2 million . On July 2, 2018, the Company used the net proceeds from the IPO to extinguish the total outstanding balance of $623.2 million of its senior secured second lien term loan facility (the “Second Lien Term Loan”). See Note 6, Debt and Credit Arrangements, for further discussion regarding the Second Lien Term Loan extinguishment. On October 1, 2018, certain selling stockholders completed the registered sale of 32,200,000 shares of the Company’s common stock at a public offering price of $26.00 per share. Of the 32,200,000 shares sold, 4,200,000 shares represented the underwriters’ exercise of their overallotment option. The Company did not receive any proceeds from this offering or incur underwriters’ discounts or commissions on the sale. The Company incurred transaction costs of $2.4 million primarily for legal, accounting and printer services related to the offering.
Stock Split	Stock Split On June 15, 2018, the Company effected a seven -to-one stock split of its issued and outstanding shares of common stock and proportional adjustment to the existing conversion ratios for each series of the Company’s Contingently Redeemable Common Stock (see Note 9). Accordingly, all shares and per share amounts for all periods presented in the accompanying consolidated financial statements and notes thereto have been adjusted retroactively, where applicable, to reflect this stock split and adjustment of the contingently redeemable common stock conversion ratios.
Deferred Offering Costs	Deferred Offering Costs The Company capitalized certain legal, professional, accounting and other third-party fees that were directly associated with the IPO as deferred offering costs. Upon the consummation of the IPO, $47.2 million was recorded in stockholders’ deficit as a reduction of additional paid-in capital.
Recent Accounting Pronouncements	Recent Accounting Pronouncements The accounting policies the Company follows are set forth in the Company’s audited financial statements for fiscal year 2018. There have been no material changes to these accounting policies, except as noted below for new accounting pronouncements adopted at the beginning of fiscal year 2019 . Leases (ASU 2016-2) In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-2, Leases (FASB Accounting Standards Codification (“ASC”) Topic 842, Leases) which requires recognition on the balance sheet for the rights and obligations created by leases with terms greater than twelve months. Consistent with prior GAAP, the recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee will depend primarily on its classification as a finance or operating lease. However, unlike prior GAAP—which required only finance (formerly capital) leases to be recognized on the balance sheet—the new ASU requires both types of leases to be recognized on the balance sheet. The ASU took effect for public companies for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. This standard can be applied at the beginning of the earliest period presented using the modified retrospective method, which includes certain practical expedients that an entity may elect to apply. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases and ASU 2018-11, Leases (Topic 842): Targeted Improvements, which make improvements to ASC 842 and allow entities to apply the new standards and not restate comparative periods in transition to ASC 842 and instead report the comparative periods under ASC 840. The Company adopted ASC 842 using the modified retrospective method at the beginning of the first quarter of fiscal year 2019. In accordance with ASC 842, the Company did not restate comparative periods in transition to ASC 842 and instead reported comparative periods under ASC 840. Adoption of the standard resulted in the initial recognition of $2.040 billion of operating lease right-of-use (“ROU”) assets and $2.071 billion of operating lease liabilities as of February 3, 2019. The difference between the assets and liabilities is attributable to the reclassification of certain existing lease-related assets and liabilities as an adjustment to the ROU assets. Finance leases were not impacted by the adoption of the new guidance as finance lease liabilities and the corresponding assets were recorded on the consolidated balance sheet under the previous guidance. The adoption of this standard did not have a material impact on the Company’s interim unaudited consolidated statements of operations and comprehensive income, statements of contingently redeemable common stock and stockholders’ deficit or cash flows, and had a $11.6 million impact on beginning retained earnings in fiscal year 2019 primarily associated with the impact of the Company's deferred gain on prior years' sale leaseback transactions, net of tax. The Company elected the transition package of practical expedients permitted within the new standard which, among other things, allowed it to carry-forward the historical lease classification. The Company did not elect the practical expedient to use hindsight in determining the lease term and in assessing impairment of ROU assets and therefore continued to utilize lease terms determined under previous lease guidance. Please refer to Note 4 – Leases for further discussion on the Company's leases. Non-Employee Share-Based Compensation (ASU 2018-07) In June 2018, the FASB issued ASU 2018-07 Improvements to Non-employee Share-Based Payment Accounting which updates the guidance to Compensation—Stock Compensation (Topic 718). The updated guidance aligns the measurement and classification guidance for share-based payments to non-employees with the guidance for share-based payments to employees, with certain exceptions. The Company adopted ASU 2018-07 at the beginning of the first quarter of fiscal year 2019 and the adoption of this standard did not have a material impact on its consolidated financial statements. Recently Issued Accounting Pronouncements Fair Value Measurement (ASU 2018-13) In August 2018, the FASB issued ASU 2018-13 Changes to the Disclosure Requirements for Fair Value Measurement which updates the guidance to Fair Value Measurement (Topic 820). The updated guidance modifies the disclosure requirements for fair value measurements by removing, modifying or adding certain disclosures. The updated guidance is effective for fiscal periods beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. The Company does not anticipate the updated guidance will have a material impact on its consolidated financial statements. Intangibles-Goodwill and Other-Internal-Use Software (ASU 2018-15) In August 2018, the FASB issued ASU 2018-15 Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40) The update related to accounting for implementation costs incurred in a cloud computing arrangement that is a service contract. The update allows entities who are customers in hosting arrangements that are service contracts to apply the existing internal-use software guidance to determine which implementation costs to capitalize as an asset related to the service contract and which costs to expense. The update specifies classification for capitalizing implementation costs and related amortization expense within the financial statements and requires additional disclosures. The updated guidance is effective for fiscal reporting periods, including interim reporting within those periods, beginning after December 15, 2019. Early adoption is permitted and can be applied either retrospectively or prospectively. The Company is currently evaluating the transition methods and the impact of the adoption of this standard on its consolidated financial statements.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	May 04, 2019
Revenue from Contract with Customer [Abstract]
Summary of Disaggregation of Revenue	The following table summarizes the Company’s percentage of net sales disaggregated by category for the first quarter of fiscal year 2019 and fiscal year 2018: Thirteen Weeks Ended May 4, 2019 May 5, 2018 Edible Grocery 24% 24% Perishables 28% 29% Non-Edible Grocery 22% 22% General Merchandise 13% 12% Gasoline and Other Ancillary Services 13% 13%

Leases (Tables)

Leases (Tables)	3 Months Ended
	May 04, 2019
Leases [Abstract]
Components of net lease cost and other information	The following table is a summary of the Company’s components of total lease costs for the first quarter of fiscal year 2019 (in thousands): Operating lease cost $ 78,434 Finance lease cost: Amortization of lease assets 282 Interest on lease liabilities 631 Total finance lease costs 913 Variable lease costs 93 Total lease costs $ 79,440 The weighted average remaining lease term and weighted average discount rate for operating and finance leases as of May 4, 2019 were as follows: Operating Leases Finance Leases Weighted average remaining lease term in years 9.2 10.1 Weighted average discount rate percentage 8.3 % 8.3 % Cash paid for amounts included in the measurement of lease liabilities were as follows (in thousands): Operating cash flows paid for operating leases $ 77,802 Operating cash flows paid for interest portion of finance leases 631 Financing cash flows paid for principal portion of finance leases 147
Maturities of operating lease liabilities	Future lease commitments to be paid and received by the Company as of May 4, 2019 were as follows (in thousands): Fiscal year Operating Leases Finance Leases 2019 (a) $ 207,601 $ 2,077 2020 309,055 3,412 2021 301,594 3,439 2022 286,136 3,439 2023 267,813 3,439 Thereafter 1,799,551 20,280 Total future minimum operating lease payments 3,171,750 36,086 Less: imputed interest 1,083,184 19,406 Present value of operating lease liabilities $ 2,088,566 $ 16,680 (a) Represents the remainder of fiscal year 2019 which excludes the thirteen weeks ended May 4, 2019.
Maturities of finance lease liabilities	Future lease commitments to be paid and received by the Company as of May 4, 2019 were as follows (in thousands): Fiscal year Operating Leases Finance Leases 2019 (a) $ 207,601 $ 2,077 2020 309,055 3,412 2021 301,594 3,439 2022 286,136 3,439 2023 267,813 3,439 Thereafter 1,799,551 20,280 Total future minimum operating lease payments 3,171,750 36,086 Less: imputed interest 1,083,184 19,406 Present value of operating lease liabilities $ 2,088,566 $ 16,680 (a) Represents the remainder of fiscal year 2019 which excludes the thirteen weeks ended May 4, 2019.
Lease commitments operating leases	The following table represents the Company's lease commitments under its previous presentation of its operating and finance lease agreements as of February 2, 2019 (in thousands): Fiscal Year Operating Leases Finance Leases 2019 $ 309,785 $ 4,510 2020 310,956 4,807 2021 299,410 4,833 2022 282,841 4,894 2023 264,363 4,956 Thereafter 1,778,207 34,377 Total $ 3,245,562 $ 58,377
Lease commitments capital leases	The following table represents the Company's lease commitments under its previous presentation of its operating and finance lease agreements as of February 2, 2019 (in thousands): Fiscal Year Operating Leases Finance Leases 2019 $ 309,785 $ 4,510 2020 310,956 4,807 2021 299,410 4,833 2022 282,841 4,894 2023 264,363 4,956 Thereafter 1,778,207 34,377 Total $ 3,245,562 $ 58,377

Debt and Credit Arrangements (T

Debt and Credit Arrangements (Tables)	3 Months Ended
	May 04, 2019
Debt Disclosure [Abstract]
Schedule of Debt	Debt consisted of the following at May 4, 2019 , February 2, 2019 and May 5, 2018 (in thousands): May 4, February 2, May 5, ABL Facility $ 281,000 $ 289,000 $ 210,000 First Lien Term Loan 1,526,201 1,530,045 1,892,546 Second Lien Term Loan — — 623,224 Unamortized debt discount and debt issuance cost (17,287 ) (18,197 ) (38,560 ) Less: current portion (246,377 ) (254,377 ) (179,250 ) Long-term debt $ 1,543,537 $ 1,546,471 $ 2,507,960

Interest Expense, net (Tables)

Interest Expense, net (Tables)	3 Months Ended
	May 04, 2019
Other Income and Expenses [Abstract]
Summary of Interest Expense	The following details the components of interest expense for the periods presented (in thousands): Thirteen Weeks Ended May 4, 2019 May 5, 2018 Interest on debt $ 25,851 $ 42,129 Interest on capital lease and financing obligations 631 1,044 Debt issuance costs amortization 696 1,015 Original issue discount amortization 627 1,101 Capitalized interest (16 ) (86 ) Interest expense, net $ 27,789 $ 45,203

Stock Incentive Plans (Tables)

Stock Incentive Plans (Tables)	3 Months Ended
	May 04, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Company's Stock Award Activity	The following table summarizes the Company’s stock award activity during the first quarter of fiscal year 2019 (shares in thousands): Stock Options Restricted Stock Restricted Stock Units Shares Weighted Average Exercise Price Shares Weighted Average Grant Date Fair Value Shares Weighted Average Grant Date Fair Value Outstanding, February 2, 2019 6,252 $ 10.09 973 $ 22.14 16 $ 27.59 Granted 725 27.59 796 27.59 — — Exercised/vested (941 ) 5.18 — — — — Forfeited/canceled (1 ) 5.72 — — — — Outstanding, May 4, 2019 6,035 $ 12.96 1,769 $ 24.59 16 $ 27.59

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	May 04, 2019
Earnings Per Share [Abstract]
Summary of basic and diluted net income per share attributable to common stockholders	The following table summarizes the computation of basic and diluted net income per share attributable to common stockholders: Thirteen Weeks Ended May 4, 2019 May 5, 2018 Weighted-average common shares outstanding, used for basic computation 136,810,084 88,553,297 Plus: Incremental shares of potentially dilutive securities 3,652,488 4,738,965 Weighted-average number of common and dilutive potential common shares outstanding 140,462,572 93,292,262

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	3 Months Ended
	May 04, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Values of Derivative Instruments	The fair values of derivative instruments included on the consolidated balance sheets are as follows (in thousands): Fair Value at Accounting for cash flow hedges Notional Amount Fixed Rate Balance Sheet Classification May 4, 2019 February 2, 2019 Interest rate swap $ 600,000 3.00 % Other noncurrent liabilities $ (12,336 ) $ (9,730 ) Interest rate swap 360,000 3.00 % Other noncurrent liabilities (7,370 ) (5,804 ) Interest rate swap 240,000 3.00 % Other noncurrent liabilities (4,920 ) (3,876 ) Net carrying amount $ 1,200,000 Total liabilities $ (24,626 ) $ (19,410 )

Description of Business - Addit

Description of Business - Additional Information (Detail)	May 04, 2019statestore
Organization and Description of Business [Line Items]
Number of warehouses operated	217
Number of states in country | state	16
Gasoline Station [Member]
Organization and Description of Business [Line Items]
Number of warehouses operated	138

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Detail) $ / shares in Units, $ in Thousands	Mar. 11, 2019USD ($)$ / sharesshares	Oct. 01, 2018USD ($)$ / sharesshares	Jul. 02, 2018USD ($)$ / sharesshares	Jun. 15, 2018	May 04, 2019USD ($)	Feb. 03, 2019USD ($)	Feb. 02, 2019USD ($)	May 05, 2018USD ($)	Feb. 04, 2018USD ($)
Summary of Significant Accounting Policies [Line Items]
Term loan outstanding					$ 1,543,537		$ 1,546,471	$ 2,507,960
Stock split, conversion ratio				7
Operating lease right-of-use assets					2,055,733		$ 0	$ 0
Operating lease liabilities					$ 2,088,566
Cumulative effect of change in accounting principle						$ 11,569			$ (6,362)
Accounting Standards Update 2016-02
Summary of Significant Accounting Policies [Line Items]
Operating lease right-of-use assets						2,040,000
Operating lease liabilities						2,071,000
Cumulative effect of change in accounting principle						$ 11,600
Second Lien Term Loan
Summary of Significant Accounting Policies [Line Items]
Term loan outstanding			$ 623,200
Underwriter | Common Stock
Summary of Significant Accounting Policies [Line Items]
Exercise of stock options (in shares) | shares	2,550,000	4,200,000	5,625,000
IPO
Summary of Significant Accounting Policies [Line Items]
Stockholders' deficit as reduction of additional paid-in capital			$ 47,200
IPO | Common Stock
Summary of Significant Accounting Policies [Line Items]
Common stock issued (in shares) | shares	19,550,000	32,200,000	43,125,000
Common stock, par value (in dollar per share) | $ / shares	$ 25.08	$ 26	$ 17
Aggregate net proceeds received by the Company after deducting underwriters' discounts and commissions			$ 685,900
Deferred offering costs	$ 1,200	$ 2,400	$ 47,200

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Detail) - USD ($)	3 Months Ended
	May 04, 2019	May 05, 2018	Feb. 02, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percentage of cash back earned	2.00%
Maximum annual cash back amount	$ 500
Cash back in form of electronic awards issued	$ 20
Cash back in form of electronic awards issued, expiration period	6 months
Club membership term	12 months
My BJ's Perks Mastercard | Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percentage of cash back earned	3.00%
My BJ's Perks Mastercard | Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percentage of cash back earned	5.00%
Card outside of BJ's | Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percentage of cash back earned	1.00%
Card outside of BJ's | Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percentage of cash back earned	2.00%
BJ's Perks Rewards - earned awards
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Deferred revenue	$ 27,600,000	$ 23,500,000
BJ's Perks Rewards - royalty revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Deferred revenue	13,300,000	12,700,000	$ 13,400,000
Membership
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Deferred revenue	141,600,000	133,900,000	134,400,000
Gift card programs
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Deferred revenue	8,000,000	8,100,000	$ 9,100,000
Revenue recognized	$ 11,100,000	$ 11,300,000
Net sales | Revenue from rights concentration risk
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Concentration risk percentage	96.00%
Total revenues | Revenue from rights concentration risk
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Concentration risk percentage	94.00%

Revenue Recognition - Remaining

Revenue Recognition - Remaining Performance Obligations (Details) - BJ's Perks Rewards - royalty revenue - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-05-05 $ in Millions	May 04, 2019USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized	$ 10.4
Revenue expected to be recognized, period	9 months

Revenue Recognition - Summary o

Revenue Recognition - Summary of Disaggregation of Revenue (Detail)	3 Months Ended
	May 04, 2019	May 05, 2018
Edible Grocery
Disaggregation of Revenue [Line Items]
Revenue recognized	24.00%	24.00%
Perishables
Disaggregation of Revenue [Line Items]
Revenue recognized	28.00%	29.00%
Non-Edible Grocery
Disaggregation of Revenue [Line Items]
Revenue recognized	22.00%	22.00%
General Merchandise
Disaggregation of Revenue [Line Items]
Revenue recognized	13.00%	12.00%
Gasoline and Other Ancillary Services
Disaggregation of Revenue [Line Items]
Revenue recognized	13.00%	13.00%

Leases - Additional Information

Leases - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	May 04, 2019	Feb. 03, 2019	Feb. 02, 2019	May 05, 2018	Feb. 04, 2018
Lessee, Lease, Description [Line Items]
Finance lease term	20 years
Operating lease right-of-use assets	$ 2,055,733		$ 0	$ 0
Operating lease liabilities	2,088,566
Property and equipment, net	728,762		748,778	749,670
Other noncurrent liabilities	145,954		$ 280,273	$ 272,203
Cumulative effect of change in accounting principle		$ 11,569			$ (6,362)
ROU assets - finance leases	19,200
Accumulated amortization - finance leases	8,600
ROU assets - operating leases	2,092,000
Accumulated amortization - operating leases	35,800
Noncash increase in ROU assets and liabilities from lease reassessments	$ 49,400
Minimum
Lessee, Lease, Description [Line Items]
Operating lease term	5 years
Leases not yet commenced, term	10 years
Maximum
Lessee, Lease, Description [Line Items]
Operating lease term	44 years
Leases not yet commenced, term	25 years
Average
Lessee, Lease, Description [Line Items]
Operating lease term	20 years
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets		2,040,000
Operating lease liabilities		2,071,000
Property and equipment, net		94,700
Other noncurrent liabilities		125,800
Cumulative effect of change in accounting principle		11,600
Accumulated Deficit
Lessee, Lease, Description [Line Items]
Cumulative effect of change in accounting principle		11,569			$ (6,362)
Accumulated Deficit | Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Cumulative effect of change in accounting principle		$ 11,600

Leases - Components of Net Leas

Leases - Components of Net Lease Cost (Details) $ in Thousands	3 Months Ended
	May 04, 2019USD ($)
Leases [Abstract]
Operating lease cost	$ 78,434
Finance lease cost:
Amortization of lease assets	282
Interest on lease liabilities	631
Total finance lease costs	913
Variable lease costs	93
Net lease costs	$ 79,440

Leases - Weighted Average Remai

Leases - Weighted Average Remaining Lease Term and Discount Rate (Details)	May 04, 2019
Operating Leases
Weighted average remaining lease term in years	9 years 2 months 12 days
Weighted average discount rate percentage	8.30%
Finance Leases
Weighted average remaining lease term in years	10 years 1 month 6 days
Weighted average discount rate percentage	8.30%

Leases - Cash Paid For Amounts

Leases - Cash Paid For Amounts Included in the Measurement of Lease Liabilities (Details) $ in Thousands	3 Months Ended
	May 04, 2019USD ($)
Leases [Abstract]
Operating cash flows paid for operating leases	$ 77,802
Operating cash flows paid for interest portion of finance leases	631
Financing cash flows paid for principal portion of finance leases	$ 147

Leases - Maturities of Operatin

Leases - Maturities of Operating and Finance Lease Liabilities (Details) $ in Thousands	May 04, 2019USD ($)
Operating Leases
2019	$ 207,601
2020	309,055
2021	301,594
2022	286,136
2023	267,813
Thereafter	1,799,551
Total future minimum operating lease payments	3,171,750
Less: imputed interest	1,083,184
Present value of operating lease liabilities	2,088,566
Finance Leases
Remainder of 2019	2,077
2020	3,412
2021	3,439
2022	3,439
2023	3,439
Thereafter	20,280
Total future minimum operating lease payments	36,086
Less: imputed interest	19,406
Present value of operating lease liabilities	$ 16,680

Leases - Future Minimum Payment

Leases - Future Minimum Payments Due (Details) $ in Thousands	Feb. 02, 2019USD ($)
Finance Leases
2019	$ 4,510
2020	4,807
2021	4,833
2022	4,894
2023	4,956
Thereafter	34,377
Total	58,377
Operating Leases
2019	309,785
2020	310,956
2021	299,410
2022	282,841
2023	264,363
Thereafter	1,778,207
Total	3,245,562
Total
2019	314,295
2020	315,763
2021	304,243
2022	287,735
2023	269,319
Thereafter	1,812,584
Total	$ 3,303,939

Related Party Transactions (Det

Related Party Transactions (Detail) - USD ($) $ in Millions	3 Months Ended
	May 04, 2019	May 05, 2018
Management Service
Related Party Transaction [Line Items]
Aggregate payment of management fees per year, plus out of pocket expenses	$ 8
Costs for services rendered	0	$ 2
Advantage Solutions Inc.
Related Party Transaction [Line Items]
Costs for services rendered	$ 11.8	$ 11

Debt and Credit Arrangements -

Debt and Credit Arrangements - Schedule of Debt (Detail) - USD ($) $ in Thousands	May 04, 2019	Feb. 02, 2019	Jul. 02, 2018	May 05, 2018
Debt Instrument [Line Items]
Debt instrument carrying amount	$ 1,807,200	$ 1,819,000		$ 2,725,800
Unamortized debt discount and debt issuance cost	(17,287)	(18,197)		(38,560)
Less: current portion	(246,377)	(254,377)		(179,250)
Long-term debt	1,543,537	1,546,471		2,507,960
ABL Facility
Debt Instrument [Line Items]
Credit facility, borrowed	281,000	289,000		210,000
First Lien Term Loan
Debt Instrument [Line Items]
Debt instrument carrying amount	1,526,201	1,530,045		1,892,546
Second Lien Term Loan
Debt Instrument [Line Items]
Debt instrument carrying amount	$ 0	$ 0		$ 623,224
Long-term debt			$ 623,200

Debt and Credit Arrangements _2

Debt and Credit Arrangements - Additional Information (Detail)	Aug. 17, 2018USD ($)	Aug. 13, 2018USD ($)	Jul. 02, 2018USD ($)	May 04, 2019USD ($)	Feb. 02, 2019USD ($)	May 05, 2018USD ($)
Debt Instrument [Line Items]
Term Loan outstanding				$ 1,807,200,000	$ 1,819,000,000	$ 2,725,800,000
Amended and Restated ABL Facility
Debt Instrument [Line Items]
Refinancing fees	$ 1,000,000
Debt issuance costs	$ 900,000
ABL Facility
Debt Instrument [Line Items]
Debt instrument, decrease in basis spread upon achievement of net leverage ratio threshold				0.125%
Debt instrument, net leverage ratio threshold for interest rate adjustment				3
Outstanding loans				$ 281,000,000	289,000,000	210,000,000
Outstanding letter of credit				29,200,000	$ 41,200,000	$ 44,600,000
ABL Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing capacity				$ 950,000,000
Interest rate at end of period				3.73%	3.76%	3.42%
Borrowing availability				$ 560,800,000	$ 545,600,000	$ 620,800,000
ABL Facility | Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				1.25%
ABL Facility | Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				1.75%
ABL Facility | Revolving Credit Facility | Base rate | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				0.25%
ABL Facility | Revolving Credit Facility | Base rate | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				0.75%
ABL Facility | Term Loan
Debt Instrument [Line Items]
Borrowing capacity				$ 50,000,000
ABL Facility | Term Loan | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				2.00%
ABL Facility | Term Loan | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				2.50%
ABL Facility | Term Loan | Base rate | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				1.00%
ABL Facility | Term Loan | Base rate | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				1.50%
First Lien Term Loan
Debt Instrument [Line Items]
Refinancing fees		$ 1,800,000
Debt issuance costs		4,400,000
Borrowing capacity		1,537,700,000
Interest rate at end of period				5.47%	5.51%	5.39%
Amount drawn		350,000,000
Debt issuance third party costs		$ 1,800,000
Percentage of original principal amount required to pay in quarterly installments				0.25%
Term Loan outstanding				$ 1,526,201,000	$ 1,530,045,000	$ 1,892,546,000
Second Lien Term Loan
Debt Instrument [Line Items]
Interest rate at end of period						9.39%
Term Loan outstanding				$ 0	$ 0	$ 623,224,000
Amount of debt extinguished			$ 623,200,000
Payment for repayment premiums			6,200,000
Debt extinguishment charges			19,200,000
Write-off of deferred debt issuance cost			$ 13,000,000

Interest Expense, net (Detail)

Interest Expense, net (Detail) - USD ($) $ in Thousands	3 Months Ended
	May 04, 2019	May 05, 2018
Other Income and Expenses [Abstract]
Interest on debt	$ 25,851	$ 42,129
Interest on capital lease and financing obligations	631	1,044
Debt issuance costs amortization	696	1,015
Original issue discount amortization	627	1,101
Capitalized interest	(16)	(86)
Interest expense, net	$ 27,789	$ 45,203

Contingently Redeemable Commo_2

Contingently Redeemable Common Stock (Detail) - USD ($)	May 04, 2019	Feb. 02, 2019	May 05, 2018	Feb. 03, 2018
Temporary Equity [Abstract]
Contingently redeemable common stock	$ 0	$ 0	$ 13,202,000	$ 10,438,000

Stock Incentive Plans - Additio

Stock Incentive Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	May 04, 2019	May 05, 2018	Feb. 02, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	305,000,000	305,000,000	305,000,000
Stock-based compensation expense	$ 3,800	$ 1,000
Shares reacquired to satisfy tax withholding (in shares)			782,000
Treasury stock	$ 19,109	$ 0	$ 19,109
Decrease in common stock outstanding (in shares)			782,000
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards granted (in shares)	796,000
Restricted stock awards granted, grant date fair value (in dollar per share)	$ 27.59
Restricted stock awards vested (in shares)	0		1,954,000
2018 Incentive Award Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	13,148,058
Number of shares reserved and not issued (in shares)	985,369
Stock options granted (in shares)	2,510
Stock options granted, exercise price (in dollar per share)	$ 17
2018 Incentive Award Plan | Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards granted (in shares)	2,943
Restricted stock awards granted, grant date fair value (in dollar per share)	$ 22

Stock Incentive Plans - Schedul

Stock Incentive Plans - Schedule of Company's Stock Award Activity (Detail) - $ / shares shares in Thousands	3 Months Ended	12 Months Ended
	May 04, 2019	Feb. 02, 2019
Stock Options
Stock Options, Shares
Outstanding, beginning balance (in shares)	6,252
Granted (in shares)	725
Exercised/vested (in shares)	(941)
Forfeited/canceled (in shares)	(1)
Outstanding, ending balance (in shares)	6,035	6,252
Stock Options, Weighted Average Exercise Price
Outstanding, beginning balance (in dollar per share)	$ 10.09
Granted (in dollar per share)	27.59
Exercised/vested (in dollar per share)	5.18
Forfeited/canceled (in dollar per share)	5.72
Outstanding, ending balance (in dollar per share)	$ 12.96	$ 10.09
Restricted Stock
Restricted Stock and Restricted Stock Units, Shares
Outstanding, beginning balance (in shares)	973
Granted (in shares)	796
Exercised/vested (in shares)	0	(1,954)
Forfeited/canceled (in shares)	0
Outstanding, ending balance (in shares)	1,769	973
Restricted Stock and Restricted Stock Units, Weighted Average Grant Date Fair Value
Outstanding, beginning balance (in dollar per share)	$ 22.14
Granted (in dollar per share)	27.59
Exercised/vested (in dollar per share)	0
Forfeited/canceled (in dollar per share)	0
Outstanding, ending balance (in dollar per share)	$ 24.59	$ 22.14
Restricted Stock Units
Restricted Stock and Restricted Stock Units, Shares
Outstanding, beginning balance (in shares)	16
Granted (in shares)	0
Exercised/vested (in shares)	0
Forfeited/canceled (in shares)	0
Outstanding, ending balance (in shares)	16	16
Restricted Stock and Restricted Stock Units, Weighted Average Grant Date Fair Value
Outstanding, beginning balance (in dollar per share)	$ 27.59
Granted (in dollar per share)	0
Exercised/vested (in dollar per share)	0
Forfeited/canceled (in dollar per share)	0
Outstanding, ending balance (in dollar per share)	$ 27.59	$ 27.59

Income Taxes (Detail)

Income Taxes (Detail)	3 Months Ended		12 Months Ended
	May 04, 2019	May 05, 2018	Feb. 01, 2020
Income Tax Disclosure [Line Items]
Effective income tax rate	15.90%	26.20%
Scenario, Forecast
Income Tax Disclosure [Line Items]
Effective income tax rate			27.30%

Fair Value Measurements (Detail

Fair Value Measurements (Detail) - USD ($) $ in Millions	May 04, 2019	Feb. 02, 2019	May 05, 2018
Fair Value Disclosures [Abstract]
Fair value of total debt	$ 1,813.8	$ 1,805.9	$ 2,738.5
Carrying value of debt	$ 1,807.2	$ 1,819	$ 2,725.8

Earnings Per Share - Summary of

Earnings Per Share - Summary of Basic and Diluted Net Income Per Share Attributable to Common Stockholders (Detail) - shares	3 Months Ended
	May 04, 2019	May 05, 2018
Earnings Per Share [Abstract]
Weighted-average common shares outstanding, used for basic computation (in shares)	136,810,084	88,553,297
Plus: Incremental shares of potentially dilutive securities (in shares)	3,652,488	4,738,965
Weighted-average number of common and dilutive potential common shares outstanding (in shares)	140,462,572	93,292,262

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares	3 Months Ended
	May 04, 2019	May 05, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options not included in the computation of diluted earnings (in shares)		901,572
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options not included in the computation of diluted earnings (in shares)	286,124
Restricted stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options not included in the computation of diluted earnings (in shares)	209,149

Derivative Financial Instrume_3

Derivative Financial Instruments - Additional Information (Details) - Interest rate swaps $ in Millions	Nov. 13, 2018derivative_instrument	May 04, 2019USD ($)	May 05, 2018USD ($)	Feb. 13, 2019USD ($)	Feb. 02, 2019USD ($)
Derivative [Line Items]
Number of derivative instruments entered | derivative_instrument	3
Amount of hedged item				$ 1,200
Average fixed interest rate				3.00%
Derivative liability		$ 24.6			$ 19.4
Unrealized losses		$ 5.2	$ 0

Derivative Financial Instrume_4

Derivative Financial Instruments - Fair Values of Derivative Instruments (Details) - Designated as hedging instrument - USD ($) $ in Thousands	May 04, 2019	Feb. 02, 2019
Derivatives, Fair Value [Line Items]
Notional Amount	$ 1,200,000
Total liabilities	(24,626)	$ (19,410)
Interest rate swap 1
Derivatives, Fair Value [Line Items]
Notional Amount	$ 600,000
Fixed Rate	3.00%
Interest rate swap 1 | Other noncurrent liabilities
Derivatives, Fair Value [Line Items]
Total liabilities	$ (12,336)	(9,730)
Interest rate swap 2
Derivatives, Fair Value [Line Items]
Notional Amount	$ 360,000
Fixed Rate	3.00%
Interest rate swap 2 | Other noncurrent liabilities
Derivatives, Fair Value [Line Items]
Total liabilities	$ (7,370)	(5,804)
Interest rate swap 3
Derivatives, Fair Value [Line Items]
Notional Amount	$ 240,000
Fixed Rate	3.00%
Interest rate swap 3 | Other noncurrent liabilities
Derivatives, Fair Value [Line Items]
Total liabilities	$ (4,920)	$ (3,876)