AutoZone (AZO) 10-Q 16 Mar 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	5 Months Ended
	Feb. 10, 2018	Mar. 09, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Feb. 10, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	AZO
Entity Registrant Name	AUTOZONE INC
Entity Central Index Key	866,787
Current Fiscal Year End Date	--08-25
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		26,900,873

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Feb. 10, 2018	Aug. 26, 2017
Current assets:
Cash and cash equivalents	$ 288,522	$ 293,270
Accounts receivable	282,532	280,733
Merchandise inventories	4,085,528	3,882,086
Other current assets	169,725	155,166
Total current assets	4,826,307	4,611,255
Property and equipment:
Property and equipment	7,041,562	6,873,193
Less: Accumulated depreciation and amortization	(2,960,261)	(2,842,175)
Property and equipment, net	4,081,301	4,031,018
Goodwill	302,645	391,887
Deferred income taxes	34,251	35,308
Other long-term assets	159,215	190,313
Other long-term assets, total	496,111	617,508
Assets	9,403,719	9,259,781
Current liabilities:
Accounts payable	4,365,666	4,168,940
Accrued expenses and other	576,224	563,350
Income taxes payable	5,338	34,011
Total current liabilities	4,947,228	4,766,301
Long-term debt	5,043,541	5,081,238
Deferred income taxes	222,932	371,111
Other long-term liabilities	520,565	469,508
Commitments and contingencies
Stockholders' deficit:
Preferred stock, authorized 1,000 shares; no shares issued
Common stock, par value $.01 per share, authorized 200,000 shares; 27,465 shares issued and 27,251 shares outstanding as of February 10, 2018; 28,735 shares issued and 27,833 shares outstanding as of August 26, 2017	275	287
Additional paid-in capital	1,112,748	1,086,671
Retained deficit	(1,990,317)	(1,642,387)
Accumulated other comprehensive loss	(286,384)	(254,557)
Treasury stock, at cost	(166,869)	(618,391)
Total stockholders' deficit	(1,330,547)	(1,428,377)
Liabilities and Stockholders' Deficit	$ 9,403,719	$ 9,259,781

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Feb. 10, 2018	Aug. 26, 2017
Statement of Financial Position [Abstract]
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	27,465,000	28,735,000
Common stock, shares outstanding	27,251,000	27,833,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		5 Months Ended
	Feb. 10, 2018	Feb. 11, 2017	Feb. 10, 2018	Feb. 11, 2017
Income Statement [Abstract]
Net sales	$ 2,413,026	$ 2,289,219	$ 5,002,156	$ 4,757,065
Cost of sales, including warehouse and delivery expenses	1,135,980	1,083,683	2,359,263	2,249,988
Gross profit	1,277,046	1,205,536	2,642,893	2,507,077
Operating, selling, general and administrative expenses	1,071,948	821,567	1,969,041	1,664,206
Operating profit	205,098	383,969	673,852	842,871
Interest expense, net	39,340	34,198	78,229	67,504
Income before income taxes	165,758	349,771	595,623	775,367
Income taxes	(123,772)	112,626	25,090	260,097
Net income	$ 289,530	$ 237,145	$ 570,533	$ 515,270
Weighted average shares for basic earnings per share	27,355	28,606	27,496	28,779
Effect of dilutive stock equivalents	527	734	493	743
Weighted average shares for diluted earnings per share	27,882	29,340	27,989	29,522
Basic earnings per share	$ 10.58	$ 8.29	$ 20.75	$ 17.90
Diluted earnings per share	$ 10.38	$ 8.08	$ 20.38	$ 17.45

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		5 Months Ended
		Feb. 10, 2018	Feb. 11, 2017	Feb. 10, 2018	Feb. 11, 2017
Statement of Comprehensive Income [Abstract]
Net income		$ 289,530	$ 237,145	$ 570,533	$ 515,270
Other comprehensive income (loss):
Pension liability adjustments, net of taxes	[1]	2,361	1,953	3,677	3,769
Foreign currency translation adjustments		7,507	(2,342)	(35,710)	(42,933)
Unrealized losses on marketable securities, net of taxes	[2]	(258)	(46)	(574)	(275)
Net derivative activities, net of taxes	[3]	457	321	780	651
Total other comprehensive income (loss)		10,067	(114)	(31,827)	(38,788)
Comprehensive income		$ 299,597	$ 237,031	$ 538,706	$ 476,482
[1]	Pension liability adjustments are presented net of taxes of $117 in fiscal 2018 and $1,248 in fiscal 2017 for the twelve weeks ended and $1,278 in fiscal 2018 and $2,634 in fiscal 2017 for the twenty-four weeks ended.
[2]	Unrealized gains on marketable securities are presented net of taxes of $139 in fiscal 2018 and $2 in fiscal 2017 for the twelve weeks ended and $309 in fiscal 2018 and $146 in fiscal 2017 for the twenty-four weeks ended.
[3]	Net derivative activities are presented net of taxes of $52 in fiscal 2018 and $188 in fiscal 2017 for the twelve weeks ended and $237 in fiscal 2018 and $367 in fiscal 2017 for the twenty-four weeks ended.

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		5 Months Ended
	Feb. 10, 2018	Feb. 11, 2017	Feb. 10, 2018	Feb. 11, 2017
Statement of Comprehensive Income [Abstract]
Pension liability adjustments, taxes	$ 117	$ 1,248	$ 1,278	$ 2,634
Unrealized gains on marketable securities, taxes	139	2	309	146
Net derivative activities, taxes	$ 52	$ 188	$ 237	$ 367

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	5 Months Ended
	Feb. 10, 2018	Feb. 11, 2017
Cash flows from operating activities:
Net income	$ 570,533	$ 515,270
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property and equipment and intangibles	157,337	144,645
Amortization of debt origination fees	3,927	3,948
Deferred income taxes	(150,613)	2,777
Share-based compensation expense	23,764	20,711
Asset impairments	193,162
Changes in operating assets and liabilities:
Accounts receivable	(3,139)	38,697
Merchandise inventories	(269,210)	(290,921)
Accounts payable and accrued expenses	211,902	24,882
Income taxes payable	(6,967)	82,620
Other, net	21,647	21,269
Net cash provided by operating activities	752,343	563,898
Cash flows from investing activities:
Capital expenditures	(214,747)	(216,103)
Purchase of marketable securities	(80,828)	(27,798)
Proceeds from sale of marketable securities	63,102	40,473
Disposal of capital assets and other, net	1,866	714
Net cash used in investing activities	(230,607)	(202,714)
Cash flows from financing activities:
Net (payments) proceeds of commercial paper	(39,600)	625,600
Repayment of debt		(400,000)
Net proceeds from sale of common stock	65,244	23,302
Purchase of treasury stock	(527,454)	(560,619)
Payments of capital lease obligations	(21,247)	(22,627)
Other, net	(1,250)	(2,224)
Net cash used in financing activities	(524,307)	(336,568)
Effect of exchange rate changes on cash	(2,177)	(3,701)
Net (decrease) increase in cash and cash equivalents	(4,748)	20,915
Cash and cash equivalents at beginning of period	293,270	189,734
Cash and cash equivalents at end of period	$ 288,522	$ 210,649

General

General	5 Months Ended
	Feb. 10, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	Note A – General The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and are presented in accordance with the requirements of Form 10-Q S-X 10-K Operating results for the twelve and twenty-four weeks ended February 10, 2018 are not necessarily indicative of the results that may be expected for the full fiscal year ending August 25, 2018. Each of the first three quarters of AutoZone’s fiscal year consists of 12 weeks, and the fourth quarter consists of 16 or 17 weeks. The fourth quarters for fiscal 2018 and 2017 each have 16 weeks. Additionally, the Company’s business is somewhat seasonal in nature, with the highest sales generally occurring during the months of February through September and the lowest sales generally occurring in the months of December and January. Recently Issued Accounting Pronouncements: In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2014-09, Revenue from Contracts with Customers. 2014-09, In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). 2016-02 right-of-use 2016-02 In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory 2016-16 2016-16 In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business 2017-01 2017-01 In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income 2018-02 2018-02

Share-Based Payments

Share-Based Payments	5 Months Ended
	Feb. 10, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Payments	Note B – Share-Based Payments AutoZone recognizes compensation expense for share-based payments based on the fair value of the awards at the grant date. Share-based payments include stock option grants, restricted stock grants, restricted stock unit grants and the discount on shares sold to employees under share purchase plans. Additionally, directors’ fees are paid in restricted stock units with value equivalent to the value of shares of common stock as of the grant date. The change in fair value of liability-based stock awards is also recognized in share-based compensation expense. Total share-based compensation expense (a component of Operating, selling, general and administrative expenses) was $12.7 million for the twelve week period ended February 10, 2018, and $10.9 million for the comparable prior year period. Share-based compensation expense was $23.8 million for the twenty-four week period ended February 10, 2018, and $20.7 million for the comparable prior year period. During the twenty-four week period ended February 10, 2018, 234,114 stock options were exercised at a weighted average exercise price of $278.69. In the comparable prior year period, 91,136 stock options were exercised at a weighted average exercise price of $265.16. The Company made stock option grants of 283,290 shares during the twenty-four week period ended February 10, 2018, and granted options to purchase 290,805 shares during the comparable prior year period. The weighted average fair value of the stock option awards granted during the twenty-four week period ended February 10, 2018, and February 11, 2017, using the Black-Scholes-Merton multiple-option pricing valuation model, was $128.99 and $139.80 per share, respectively, using the following weighted average key assumptions: Twenty-Four Weeks Ended February 10, 2018 February 11, 2017 Expected price volatility 20% 18% Risk-free interest rate 1.9% 1.2% Weighted average expected lives (in years) 5.1 5.1 Forfeiture rate 10% 10% Dividend yield 0% 0% See AutoZone’s Annual Report on Form 10-K For the twelve week period ended February 10, 2018, 609,435 stock options were excluded from the diluted earnings per share computation because they would have been anti-dilutive. For the comparable prior year period, 645,561 anti-dilutive shares were excluded from the dilutive earnings per share computation. There were 844,912 anti-dilutive shares excluded from the diluted earnings per share computation for the twenty-four week period ended February 10, 2018, and 605,065 anti-dilutive shares excluded for the comparable prior year period.

Fair Value Measurements

Fair Value Measurements	5 Months Ended
	Feb. 10, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note C – Fair Value Measurements The Company defines fair value as the price received to transfer an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses the fair value hierarchy, which prioritizes the inputs used to measure fair value. The hierarchy, as defined below, gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The three levels of the fair value hierarchy are set forth below: Level 1 inputs Level 2 inputs Level 3 inputs Financial Assets & Liabilities Measured at Fair Value on a Recurring Basis The Company’s assets and liabilities measured at fair value on a recurring basis were as follows: February 10, 2018 (in thousands) Level 1 Level 2 Level 3 Fair Value Other current assets $ 30,007 $ 1,928 $ – $ 31,935 Other long-term assets 61,534 24,248 – 85,782 $ 91,541 $ 26,176 $ – $ 117,717 August 26, 2017 (in thousands) Level 1 Level 2 Level 3 Fair Value Other current assets $ 18,453 $ 120 $ – $ 18,573 Other long-term assets 53,319 28,981 – 82,300 $ 71,772 $ 29,101 $ – $ 100,873 At February 10, 2018, the fair value measurement amounts for assets and liabilities recorded in the accompanying Condensed Consolidated Balance Sheet consisted of short-term marketable securities of $31.9 million, which are included within Other current assets, and long-term marketable securities of $85.8 million, which are included in Other long-term assets. The Company’s marketable securities are typically valued at the closing price in the principal active market as of the last business day of the quarter or through the use of other market inputs relating to the securities, including benchmark yields and reported trades. The fair values of the marketable securities, by asset class, are described in “Note D – Marketable Securities.” Non-Financial Non-Recurring Certain non-financial non-recurring non-financial non-financial non-recurring Financial Instruments not Recognized at Fair Value The Company has financial instruments, including cash and cash equivalents, accounts receivable, other current assets and accounts payable. The carrying amounts of these financial instruments approximate fair value because of their short maturities. A discussion of the carrying values and fair values of the Company’s debt is included in “Note H – Financing.”

Marketable Securities

Marketable Securities	5 Months Ended
	Feb. 10, 2018
Investments, Debt and Equity Securities [Abstract]
Marketable Securities	Note D – Marketable Securities The Company’s basis for determining the cost of a security sold is the “Specific Identification Model.” Unrealized gains (losses) on marketable securities are recorded in Accumulated other comprehensive loss. The Company’s available-for-sale February 10, 2018 (in thousands) Amortized Basis Gross Gross Fair Value Corporate securities $ 65,261 $ – $ (533 ) $ 64,728 Government bonds 22,996 – (129 ) 22,867 Mortgage-backed securities 4,005 – (79 ) 3,926 Asset-backed securities and other 26,348 – (152 ) 26,196 $ 118,610 $ – $ (893 ) $ 117,717 August 26, 2017 (in thousands) Amortized Basis Gross Gross Fair Value Corporate securities $ 39,917 $ 73 $ (13 ) $ 39,977 Government bonds 31,076 49 (74 ) 31,051 Mortgage-backed securities 4,850 2 (42 ) 4,810 Asset-backed securities and other 25,042 28 (35 ) 25,035 $ 100,885 $ 152 $ (164 ) $ 100,873 The debt securities held at February 10, 2018, had effective maturities ranging from less than one year to approximately three years. The Company did not realize any material gains or losses on its marketable securities during the twenty-four week period ended February 10, 2018. The Company holds 112 securities that are in an unrealized loss position of approximately $893 thousand at February 10, 2018. The Company has the intent and ability to hold these investments until recovery of fair value or maturity, and does not deem the investments to be impaired on an other than temporary basis. In evaluating whether the securities are deemed to be impaired on an other than temporary basis, the Company considers factors such as the duration and severity of the loss position, the credit worthiness of the investee, the term to maturity and the intent and ability to hold the investments until maturity or until recovery of fair value. Included above in total marketable securities are $85.0 million of marketable securities transferred by the Company’s insurance captive to a trust account to secure its obligations to an insurance company related to future workers’ compensation and casualty losses.

Derivative Financial Instrument

Derivative Financial Instruments	5 Months Ended
	Feb. 10, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Note E – Derivative Financial Instruments At February 10, 2018, the Company had $9.0 million recorded in Accumulated other comprehensive loss related to realized losses associated with terminated interest rate swap and treasury rate lock derivatives which were designated as hedging instruments. Net losses are amortized into Interest expense over the remaining life of the associated debt. The Company reclassified $509 thousand of net losses from Accumulated other comprehensive loss to interest expense for the twelve weeks ended February 10, 2018 and the comparable prior year period. During the twenty-four week period ended February 10, 2018 and the comparable prior year period, the Company reclassified $1.0 million of net losses from Accumulated other comprehensive loss to Interest expense. The Company expects to reclassify $2.2 million of net losses from Accumulated other comprehensive loss to Interest expense over the next 12 months.

Merchandise Inventories

Merchandise Inventories	5 Months Ended
	Feb. 10, 2018
Inventory Disclosure [Abstract]
Merchandise Inventories	Note F – Merchandise Inventories Merchandise inventories are stated at the lower of cost or market. Merchandise inventories include related purchasing, storage and handling costs. Inventory cost has been determined using the last-in, first-out

Pension and Savings Plans

Pension and Savings Plans	5 Months Ended
	Feb. 10, 2018
Retirement Benefits [Abstract]
Pension and Savings Plans	Note G – Pension and Savings Plans The components of net periodic pension expense related to the Company’s pension plans consisted of the following: Twelve Weeks Ended Twenty-Four Weeks Ended (in thousands) February 10, 2018 February 11, 2017 February 10, 2018 February 11, 2017 Interest cost $ 2,390 $ 2,385 $ 4,780 $ 4,770 Expected return on plan assets (4,384 ) (4,628 ) (8,768 ) (9,257 ) Amortization of net loss 2,478 3,201 4,955 6,403 Net periodic pension expense $ 484 $ 958 $ 967 $ 1,916 The Company makes contributions in amounts at least equal to the minimum funding requirements of the Employee Retirement Income Security Act of 1974, as amended by the Pension Protection Act of 2006. During the twenty-four weeks period ended February 10, 2018, the Company did not make contributions to its funded plan. On December 19, 2017, the Board of Directors approved a resolution to terminate the Company’s pension plans, effective March 15, 2018. Benefit accruals have been frozen, and the plan closed to new participants on January 1, 2003. The Company has commenced the plan termination process and expects to distribute a portion of the pension plan assets as lump sum payments with the remaining balance transferred to an insurance company in the form of an annuity. The total payments distributed will depend on the participation rate of eligible participants. Based on the estimated value of assets held in the plan, the Company currently estimates that a cash contribution of approximately $20—$30 million will be required to fully fund the plan’s liabilities at termination. The pension plan termination is expected to be completed by the end of fiscal 2018, and the Company is in the process of evaluating the impact of the termination and future settlement accounting on its consolidated financial statements and related disclosures.

Financing

Financing	5 Months Ended
	Feb. 10, 2018
Debt Disclosure [Abstract]
Financing	Note H – Financing The Company’s long-term debt consisted of the following: (in thousands) February 10, 2018 August 26, 7.125% Senior Notes due August 2018, effective interest rate of 7.28% $ 250,000 $ 250,000 1.625% Senior Notes due April 2019, effective interest rate of 1.77% 250,000 250,000 4.000% Senior Notes due November 2020, effective interest rate of 4.43% 500,000 500,000 2.500% Senior Notes due April 2021, effective interest rate of 2.62% 250,000 250,000 3.700% Senior Notes due April 2022, effective interest rate of 3.85% 500,000 500,000 2.875% Senior Notes due January 2023, effective interest rate of 3.21% 300,000 300,000 3.125% Senior Notes due July 2023, effective interest rate of 3.26% 500,000 500,000 3.250% Senior Notes due April 2025, effective interest rate 3.36% 400,000 400,000 3.125% Senior Notes due April 2026, effective interest rate of 3.28% 400,000 400,000 3.750% Senior Notes due June 2027, effective interest rate of 3.83% 600,000 600,000 Commercial paper, weighted average interest rate of 1.80% and 1.44% at February 10, 2018 and August 26, 2017, respectively 1,115,500 1,155,100 Total debt before discounts and debt issuance costs 5,065,500 5,105,100 Less: Discounts and debt issuance costs 21,959 23,862 Long-term debt $ 5,043,541 $ 5,081,238 As of February 10, 2018, the commercial paper borrowings and the $250 million 7.125% Senior Notes due August 2018 were classified as long-term in the accompanying Consolidated Balance Sheets as the Company had the ability and intent to refinance on a long-term basis through available capacity in its revolving credit facility. As of February 10, 2018, the Company had $1.997 billion of availability under its $2.0 billion revolving credit facility, which would allow it to replace these short-term obligations with long-term financing facilities. The Company entered into a Master Extension, New Commitment and Amendment Agreement dated as of November 18, 2017 (the “Extension Amendment”) to the Third Amended and Restated Credit Agreement dated as of November 18, 2016, as amended, modified, extended or restated from time to time. Under the Extension Amendment: (i) the Company’s borrowing capacity under the Revolving Credit Agreement was increased from $1.6 billion to $2.0 billion; (ii) the Company’s option to increase its borrowing capacity under the Revolving Credit Agreement was “refreshed” and the amount of such option remained at $400 million; the maximum borrowing under the Revolving Credit Agreement may, at the Company’s option, subject to lenders approval, be increased from $2.0 billion to $2.4 billion; (iii) the termination date of the Revolving Credit Agreement was extended from November 18, 2021 until November 18, 2022; and (iv) the Company has the option to make one additional written request of the lenders to extend the termination date then in effect for an additional one year. Under the revolving credit facility, the Company may borrow funds consisting of Eurodollar loans, base rate loans or a combination of both. Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable percentage, as defined in the revolving credit facility, depending upon the Company’s senior, unsecured, (non-credit On November 18, 2016, the Company amended and restated its existing 364-Day 364-Day (non-credit 364-Day The fair value of the Company’s debt was estimated at $5.049 billion as of February 10, 2018, and $5.171 billion as of August 26, 2017, based on the quoted market prices for the same or similar issues or on the current rates available to the Company for debt of the same terms (Level 2). Such fair value is greater than the carrying value of debt by $5.4 million at February 10, 2018, and $90.3 million at August 26, 2017, which reflects their face amount, adjusted for any unamortized debt issuance costs and discounts. All senior notes are subject to an interest rate adjustment if the debt ratings assigned to the senior notes are downgraded (as defined in the agreements). Further, the senior notes contain a provision that repayment of the senior notes may be accelerated if we experience a change in control (as defined in the agreements). Our borrowings under our senior notes contain minimal covenants, primarily restrictions on liens. Under our revolving credit facilities, covenants include restrictions on liens, a maximum debt to earnings ratio, a minimum fixed charge coverage ratio and a change of control provision that may require acceleration of the repayment obligations under certain circumstances. All of the repayment obligations under our borrowing arrangements may be accelerated and come due prior to the scheduled payment date if covenants are breached or an event of default occurs. As of February 10, 2018, we were in compliance with all covenants and expect to remain in compliance with all covenants under our borrowing arrangements.

Stock Repurchase Program

Stock Repurchase Program	5 Months Ended
	Feb. 10, 2018
Equity [Abstract]
Stock Repurchase Program	Note I – Stock Repurchase Program From January 1, 1998 to February 10, 2018, the Company has repurchased a total of 143.1 million shares of its common stock at an aggregate cost of $18.354 billion, including 824,733 shares of its common stock at an aggregate cost of $527.5 million during the twenty-four week period ended February 10, 2018. On March 21, 2017, the Board voted to increase the authorization by $750 million. This raised the total value of shares authorized to be repurchased to $18.65 billion. Considering the cumulative repurchases as of February 10, 2018, the Company had $296.2 million remaining under the Board’s authorization to repurchase its common stock. During the twenty-four week period ended February 10, 2018, the Company retired 1.5 million shares of treasury stock which had previously been repurchased under the Company’s share repurchase program. The retirement increased Retained deficit by $918.5 million and decreased Additional paid-in paid-in Subsequent to February 10, 2018, the Company has repurchased 382,928 shares of its common stock at an aggregate cost of $264.9 million.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	5 Months Ended
	Feb. 10, 2018
Equity [Abstract]
Accumulated Other Comprehensive Loss	Note J – Accumulated Other Comprehensive Loss Accumulated other comprehensive loss includes certain adjustments to pension liabilities, foreign currency translation adjustments, certain activity for interest rate swaps and treasury rate locks that qualify as cash flow hedges and unrealized gains (losses) on available-for-sale (in thousands) Pension Liability Foreign Currency (3) Net Unrealized Gain on Derivatives Total Balance at November 18, 2017 $ (71,060 ) $ (219,031 ) $ (327 ) $ (6,033 ) $ (296,451 ) Other comprehensive income (loss) before reclassifications (1) – 7,507 (224 ) – 7,283 Amounts reclassified from Accumulated other comprehensive loss (1) 2,361 (2) – (34 ) (4) 457 (5) 2,784 Balance at February 10, 2018 $ (68,699 ) $ (211,524 ) $ (585 ) $ (5,576 ) $ (286,384 ) (in thousands) Pension Liability Foreign (3) Net Derivatives Total Balance at November 19, 2016 $ (87,074 ) $ (251,603 ) $ (109 ) $ (7,417 ) $ (346,203 ) Other comprehensive loss before reclassifications (1) – (2,342 ) (13 ) – (2,355 ) Amounts reclassified from Accumulated other comprehensive loss ( 1 ) 1,953 (2) – (33 ) (4) 321 (5) 2,241 Balance at February 11, 2017 $ (85,121 ) $ (253,945 ) $ (155 ) $ (7,096 ) $ (346,317 ) (1) Amounts in parentheses indicate debits to Accumulated other comprehensive loss. (2) Represents amortization of pension liability adjustments, net of taxes of $117 for the twelve weeks ended February 10, 2018 and $1,248 for the twelve weeks ended February 11, 2017, which is recorded in Operating, selling, general and administrative expenses on the Condensed Consolidated Statements of Income. See “Note G – Pension and Savings Plans” for further discussion. (3) Foreign currency is not shown net of additional U.S. tax as earnings of non-U.S. (4) Represents realized losses on marketable securities, net of taxes of $16 for the twelve weeks ended February 10, 2018 and $18 for the twelve weeks ended February 11, 2017, which is recorded in Operating, selling, general and administrative expenses on the Condensed Consolidated Statements of Income. See “Note D – Marketable Securities” for further discussion. (5) Represents gains and losses on derivatives, net of taxes of $52 for the twelve weeks ended February 10, 2018 and $188 for the twelve weeks ended February 11, 2017, which is recorded in Interest expense, net, on the Condensed Consolidated Statements of Income. See “Note E – Derivative Financial Instruments” for further discussion. Changes in Accumulated other comprehensive loss for the twenty-four week periods ended February 10, 2018 and February 11, 2017, consisted of the following: (in thousands) Pension Liability Foreign Currency (3) Net Unrealized Gain on Derivatives Total Balance at August 26, 2017 $ (72,376 ) $ (175,814 ) $ (11 ) $ (6,356 ) $ (254,557 ) Other comprehensive income (loss) before reclassifications (1) – (35,710 ) (538 ) – (36,248 ) Amounts reclassified from Accumulated other comprehensive loss ( 1 ) 3,677 (2) – (36 ) (4) 780 (5) 4,421 Balance at February 10, 2018 $ (68,699 ) $ (211,524 ) $ (585 ) $ (5,576 ) $ (286,384 ) (in thousands) Pension Liability Foreign (3) Net Derivatives Total Balance at August 27, 2016 $ (88,890 ) $ (211,012 ) $ 120 $ (7,747 ) $ (307,529 ) Other comprehensive (loss) before reclassifications (1) – (42,933 ) (248 ) – (43,181 ) Amounts reclassified from Accumulated other comprehensive loss ( 1 ) 3,769 (2) – (27 ) (4) 651 (5) 4,393 Balance at February 11, 2017 $ (85,121 ) $ (253,945 ) $ (155 ) $ (7,096 ) $ (346,317 ) (1) Amounts in parentheses indicate debits to Accumulated other comprehensive loss. (2) Represents amortization of pension liability adjustments, net of taxes of $1,278 in fiscal 2018 and $2,634 in fiscal 2017, which is recorded in Operating, selling, general and administrative expenses on the Condensed Consolidated Statements of Income. See “Note G – Pension and Savings Plans” for further discussion. (3) Foreign currency is not shown net of additional U.S. tax as earnings of non-U.S. (4) Represents realized losses on marketable securities, net of taxes of $18 in fiscal 2018 and $15 in fiscal 2017, which is recorded in Operating, selling, general and administrative expenses on the Condensed Consolidated Statements of Income. See “Note D – Marketable Securities” for further discussion. (5) Represents gains and losses on derivatives, net of taxes of $237 in fiscal 2018 and $367 in fiscal 2017, which is recorded in Interest expense, net, on the Condensed Consolidated Statements of Income. See “Note E – Derivative Financial Instruments” for further discussion.

Goodwill and Intangibles

Goodwill and Intangibles	5 Months Ended
	Feb. 10, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangibles	Note K – Goodwill and Intangibles The changes in the carrying amount of goodwill are as follows: (in thousands) Auto Parts Other Total Net balance as of August 26, 2017 $ 326,703 $ 65,184 $ 391,887 Goodwill adjustments (1) (24,058 ) (65,184 ) (89,242 ) Net balance as of February 10, 2018 $ 302,645 $ – $ 302,645 (1) See “Note L – Asset Impairments” for further discussion. The carrying amounts of intangible assets, other than goodwill, are included in Other long-term assets as follows: (in thousands) Estimated Gross Accumulated Impairment (1) Net Carrying Amortizing intangible assets: Technology 3-5 $ 10,570 $ (9,994 ) $ (576 ) $ – Noncompete agreements 5 years 1,300 (1,223 ) (77 ) – Customer relationships 3-10 years 49,676 (27,583 ) (10,057 ) 12,036 $ 61,546 $ (38,800 ) $ (10,710 ) 12,036 Non-amortizing Trade name $ (26,900 ) – Total intangible assets other than goodwill $ 12,036 (1) See “Note L – Asset Impairments” for further discussion. Amortization expense of intangible assets for the twelve and twenty-four week periods ended February 10, 2018 was $1.4 million and $2.8 million, respectively. Amortization expense of intangible assets for the twelve and twenty-four week periods ended February 11, 2017 was $1.9 million and $4.0 million, respectively.

Asset Impairments

Asset Impairments	5 Months Ended
	Feb. 10, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Asset Impairments	Note L – Asset Impairments During the second quarter, the Company recorded impairment charges related to its IMC and AutoAnything businesses totaling $193.2 million as the Company determined that the approximate fair value less costs to sell the businesses was significantly lower than the carrying value of the net assets based on recent offers received for these businesses as of the quarter ended February 10, 2018. The impairment charge for the IMC business, which is reflected as a component of Auto Parts Locations in our segment reporting, includes $48.3 million related to inventory, $24.1 million related to goodwill, $18.0 million related to property and equipment, and $3.2 million related to other intangible assets. The impairment charge for AutoAnything, which is reflected as a component of the Other category in our segment reporting, includes $65.2 million related to goodwill and $34.4 million related to other intangible assets. The Company recorded these impairment charges within Operating, selling, general and administrative expenses in its condensed consolidated statements of income. The carrying value for the assets and liabilities remaining after these impairment charges total $97.4 million and $59.0 million as of February 10, 2018 and are included in our condensed consolidated balance sheet at that date. The major classes of assets and liabilities included in those amounts consisted of accounts receivable of $22.2 million, merchandise inventories of $64.6 million and accounts payable of $47.7 million as of February 10, 2018.

Litigation

Litigation	5 Months Ended
	Feb. 10, 2018
Commitments and Contingencies Disclosure [Abstract]
Litigation	Note M – Litigation In July 2014, the Company received a subpoena from the District Attorney of the County of Alameda, along with other environmental prosecutorial offices in the State of California, seeking documents and information related to the handling, storage and disposal of hazardous waste. The Company received notice that the District Attorney will seek injunctive and monetary relief. The Company is cooperating fully with the request and cannot predict the ultimate outcome of these efforts, although the Company has accrued all amounts it believes to be probable and reasonably estimable. The Company does not believe the ultimate resolution of this matter will have a material adverse effect on its consolidated financial position, results of operations or cash flows. The Company is involved in various other legal proceedings incidental to the conduct of its business, including, but not limited to, several lawsuits containing class-action allegations in which the plaintiffs are current and former hourly and salaried employees who allege various wage and hour violations and unlawful termination practices. The Company does not currently believe that, either individually or in the aggregate, these matters will result in liabilities material to its consolidated financial condition, results of operations or cash flows.

Segment Reporting

Segment Reporting	5 Months Ended
	Feb. 10, 2018
Segment Reporting [Abstract]
Segment Reporting	Note N – Segment Reporting The Company’s four operating segments (Domestic Auto Parts, Mexico, Brazil and IMC) are aggregated as one reportable segment: Auto Parts Locations. The criteria the Company used to identify the reportable segment are primarily the nature of the products the Company sells and the operating results that are regularly reviewed by the Company’s chief operating decision maker to make decisions about the resources to be allocated to the business units and to assess performance. The accounting policies of the Company’s reportable segment are the same as those described in Note A in its Annual Report on Form 10-K The Auto Parts Locations segment is a retailer and distributor of automotive parts and accessories through the Company’s 6,088 locations in the United States, Puerto Rico, Mexico and Brazil. Each location carries an extensive product line for cars, sport utility vehicles, vans and light trucks, including new and remanufactured automotive hard parts, maintenance items, accessories and non-automotive The Other category reflects business activities of three operating segments that are not separately reportable due to the materiality of these operating segments. The operating segments include ALLDATA, which produces, sells and maintains diagnostic and repair information software used in the automotive repair industry; E-commerce, The Company evaluates its reportable segment primarily on the basis of net sales and segment profit, which is defined as gross profit. Segment results for the periods presented were as follows: Twelve Weeks Ended Twenty-Four Weeks Ended (in thousands) February 10, 2018 February 11, 2017 February 10, 2018 February 11, 2017 Net Sales Auto Parts Locations $ 2,331,572 $ 2,205,562 $ 4,841,700 $ 4,595,123 Other 81,454 83,657 160,456 161,942 Total $ 2,413,026 $ 2,289,219 $ 5,002,156 $ 4,757,065 Segment Profit Auto Parts Locations $ 1,233,008 $ 1,160,923 $ 2,555,452 $ 2,418,689 Other 44,038 44,613 87,441 88,388 Gross profit 1,277,046 1,205,536 2,642,893 2,507,077 Operating, selling, general and administrative expenses (1) (1,071,948 ) (821,567 ) (1,969,041 ) (1,664,206 ) Interest expense, net (39,340 ) (34,198 ) (78,229 ) (67,504 ) Income before income taxes $ 165,758 $ 349,771 $ 595,623 $ 775,367 (1) Includes impairment charges of $193.2 million. See “Note L – Asset Impairments” for further discussion.

Income Taxes

Income Taxes	5 Months Ended
	Feb. 10, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Note O – Income Taxes Our effective income tax rate was (74.7%) of pretax income for the twelve weeks ended February 10, 2018. The effective tax rate was lower than the U.S. statutory federal rate primarily due to a $111.9 million provisional tax benefit resulting from the enactment of the Tax Reform as described in further detail below; $32.1 million of excess tax benefits from option exercises; a $35.3 million benefit from the previously reported quarter one tax expense due to the reduction of the U.S. statutory rate from 35% to approximately 25.9%; and a second quarter tax benefit of $24.2 million due to the reduction of the U.S. statutory rate from 35% to approximately 25.9%. Our effective income tax rate was 4.2% of pretax income for the twenty-four weeks ended February 10, 2018. The effective tax rate was lower than the U.S. statutory federal rate primarily due to a $111.9 million provisional tax benefit resulting from the enactment of Tax Reform as described in further detail below; $34.3 million of excess tax benefits from option exercises; and a $59.5 million benefit from the reduction of the U.S. statutory rate from 35% to approximately 25.9%. At the end of each interim period, the Company estimates its effective tax rate and applies that rate to its ordinary quarterly earnings. The tax expense or benefit related to significant, unusual, or extraordinary items that will be separately reported or reported net of their related tax effect are individually computed and recognized in the interim period in which those items occur. In addition, the effects of changes in enacted tax laws or rates or tax status are recognized in the interim period in which the change occurs. On December 22, 2017, Tax Reform was enacted by the U.S. government. Tax Reform contains several key provisions that affected the Company. The enacted provisions impacting the current financial statements include a mandatory one-time th year-end, non-U.S. The Securities and Exchange Commission (SEC) staff issued Staff Accounting Bulletin No. 118 (SAB 118) to address the application of U.S. GAAP in situations where a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of Tax Reform. To the extent that a company’s accounting for certain income tax effects of Tax Reform is incomplete but it is able to determine a reasonable estimate, it must record a provisional estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial statements, it should continue to apply ASC 740 on the basis of the provisions of the tax laws that were in effect immediately before the enactment of Tax Reform. The ultimate impact may differ from provisional amounts recorded, possibly materially, due to, among other things, additional analysis, changes in interpretations and assumptions the Company has made, and additional regulatory guidance that may be issued. The accounting is expected to be completed within one year from the enactment date of Tax Reform. Based on the current analysis, the Company recorded a provisional income tax benefit of $111.9 million in its consolidated financial statements for the quarter ended February 10, 2018. The Company was able to determine a reasonable estimate for the mandatory one-time re-measurement As of February 10, 2018, the Company has estimated the following obligations with respect to the mandatory deemed repatriation of the Company’s foreign subsidiaries. The estimate may change, possibly materially, due to among other things, further refinement of the Company’s calculations, changes in interpretations and assumptions the Company has made, guidance that may be issued and actions the Company may take as a result of Tax Reform. (in thousands) Scheduled 2018 $ 3,507 2019 1,847 2020 1,847 2021 1,847 2022 1,847 2023 3,464 2024 4,619 2025 5,773 Total One-Time $ 24,751

Subsequent Events

Subsequent Events	5 Months Ended
	Feb. 10, 2018
Subsequent Events [Abstract]
Subsequent Events	Note P – Subsequent Events Subsequent to the balance sheet date, on February 22, 2018, the Company entered into an asset purchase agreement to sell substantially all of the assets, net of assumed liabilities related to its IMC operations for consideration that approximates the remaining net book value of the business. The transaction is expected to close in the third quarter of fiscal 2018. On February 26, 2018, the Company sold substantially all of the assets, net of assumed liabilities, related to its AutoAnything operations for consideration that approximates the remaining net book value of the business.

General (Policies)

General (Policies)	5 Months Ended
	Feb. 10, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Fiscal Period	Operating results for the twelve and twenty-four weeks ended February 10, 2018 are not necessarily indicative of the results that may be expected for the full fiscal year ending August 25, 2018. Each of the first three quarters of AutoZone’s fiscal year consists of 12 weeks, and the fourth quarter consists of 16 or 17 weeks. The fourth quarters for fiscal 2018 and 2017 each have 16 weeks. Additionally, the Company’s business is somewhat seasonal in nature, with the highest sales generally occurring during the months of February through September and the lowest sales generally occurring in the months of December and January.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements: In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2014-09, Revenue from Contracts with Customers. 2014-09, In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). 2016-02 right-of-use 2016-02 In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory 2016-16 2016-16 In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business 2017-01 2017-01 In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income 2018-02 2018-02

Share-Based Payments (Tables)

Share-Based Payments (Tables)	5 Months Ended
	Feb. 10, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted Average for Key Assumptions Used in Determining Fair Value of Options Granted and Related Share-Based Compensation Expense	The weighted average fair value of the stock option awards granted during the twenty-four week period ended February 10, 2018, and February 11, 2017, using the Black-Scholes-Merton multiple-option pricing valuation model, was $128.99 and $139.80 per share, respectively, using the following weighted average key assumptions: Twenty-Four Weeks Ended February 10, 2018 February 11, 2017 Expected price volatility 20% 18% Risk-free interest rate 1.9% 1.2% Weighted average expected lives (in years) 5.1 5.1 Forfeiture rate 10% 10% Dividend yield 0% 0%

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	5 Months Ended
	Feb. 10, 2018
Fair Value Disclosures [Abstract]
Company's Assets and Liabilities Measured at Fair Value on Recurring Basis	The Company’s assets and liabilities measured at fair value on a recurring basis were as follows: February 10, 2018 (in thousands) Level 1 Level 2 Level 3 Fair Value Other current assets $ 30,007 $ 1,928 $ – $ 31,935 Other long-term assets 61,534 24,248 – 85,782 $ 91,541 $ 26,176 $ – $ 117,717 August 26, 2017 (in thousands) Level 1 Level 2 Level 3 Fair Value Other current assets $ 18,453 $ 120 $ – $ 18,573 Other long-term assets 53,319 28,981 – 82,300 $ 71,772 $ 29,101 $ – $ 100,873

Marketable Securities (Tables)

Marketable Securities (Tables)	5 Months Ended
	Feb. 10, 2018
Investments, Debt and Equity Securities [Abstract]
Available-for-Sale Marketable Securities	The Company’s available-for-sale February 10, 2018 (in thousands) Amortized Basis Gross Gross Fair Value Corporate securities $ 65,261 $ – $ (533 ) $ 64,728 Government bonds 22,996 – (129 ) 22,867 Mortgage-backed securities 4,005 – (79 ) 3,926 Asset-backed securities and other 26,348 – (152 ) 26,196 $ 118,610 $ – $ (893 ) $ 117,717 August 26, 2017 (in thousands) Amortized Basis Gross Gross Fair Value Corporate securities $ 39,917 $ 73 $ (13 ) $ 39,977 Government bonds 31,076 49 (74 ) 31,051 Mortgage-backed securities 4,850 2 (42 ) 4,810 Asset-backed securities and other 25,042 28 (35 ) 25,035 $ 100,885 $ 152 $ (164 ) $ 100,873

Pension and Savings Plans (Tabl

Pension and Savings Plans (Tables)	5 Months Ended
	Feb. 10, 2018
Retirement Benefits [Abstract]
Net Periodic Benefit Expense	The components of net periodic pension expense related to the Company’s pension plans consisted of the following: Twelve Weeks Ended Twenty-Four Weeks Ended (in thousands) February 10, 2018 February 11, 2017 February 10, 2018 February 11, 2017 Interest cost $ 2,390 $ 2,385 $ 4,780 $ 4,770 Expected return on plan assets (4,384 ) (4,628 ) (8,768 ) (9,257 ) Amortization of net loss 2,478 3,201 4,955 6,403 Net periodic pension expense $ 484 $ 958 $ 967 $ 1,916

Financing (Tables)

Financing (Tables)	5 Months Ended
	Feb. 10, 2018
Debt Disclosure [Abstract]
Schedule of Debt	The Company’s long-term debt consisted of the following: (in thousands) February 10, 2018 August 26, 7.125% Senior Notes due August 2018, effective interest rate of 7.28% $ 250,000 $ 250,000 1.625% Senior Notes due April 2019, effective interest rate of 1.77% 250,000 250,000 4.000% Senior Notes due November 2020, effective interest rate of 4.43% 500,000 500,000 2.500% Senior Notes due April 2021, effective interest rate of 2.62% 250,000 250,000 3.700% Senior Notes due April 2022, effective interest rate of 3.85% 500,000 500,000 2.875% Senior Notes due January 2023, effective interest rate of 3.21% 300,000 300,000 3.125% Senior Notes due July 2023, effective interest rate of 3.26% 500,000 500,000 3.250% Senior Notes due April 2025, effective interest rate 3.36% 400,000 400,000 3.125% Senior Notes due April 2026, effective interest rate of 3.28% 400,000 400,000 3.750% Senior Notes due June 2027, effective interest rate of 3.83% 600,000 600,000 Commercial paper, weighted average interest rate of 1.80% and 1.44% at February 10, 2018 and August 26, 2017, respectively 1,115,500 1,155,100 Total debt before discounts and debt issuance costs 5,065,500 5,105,100 Less: Discounts and debt issuance costs 21,959 23,862 Long-term debt $ 5,043,541 $ 5,081,238

Accumulated Other Comprehensi30

Accumulated Other Comprehensive Loss (Tables)	5 Months Ended
	Feb. 10, 2018
Equity [Abstract]
Changes in Accumulated Other Comprehensive Loss	Changes in Accumulated other comprehensive loss for the twelve week periods ended February 10, 2018 and February 11, 2017 consisted of the following: (in thousands) Pension Liability Foreign Currency (3) Net Unrealized Gain on Derivatives Total Balance at November 18, 2017 $ (71,060 ) $ (219,031 ) $ (327 ) $ (6,033 ) $ (296,451 ) Other comprehensive income (loss) before reclassifications (1) – 7,507 (224 ) – 7,283 Amounts reclassified from Accumulated other comprehensive loss (1) 2,361 (2) – (34 ) (4) 457 (5) 2,784 Balance at February 10, 2018 $ (68,699 ) $ (211,524 ) $ (585 ) $ (5,576 ) $ (286,384 ) (in thousands) Pension Liability Foreign (3) Net Derivatives Total Balance at November 19, 2016 $ (87,074 ) $ (251,603 ) $ (109 ) $ (7,417 ) $ (346,203 ) Other comprehensive loss before reclassifications (1) – (2,342 ) (13 ) – (2,355 ) Amounts reclassified from Accumulated other comprehensive loss ( 1 ) 1,953 (2) – (33 ) (4) 321 (5) 2,241 Balance at February 11, 2017 $ (85,121 ) $ (253,945 ) $ (155 ) $ (7,096 ) $ (346,317 ) (1) Amounts in parentheses indicate debits to Accumulated other comprehensive loss. (2) Represents amortization of pension liability adjustments, net of taxes of $117 for the twelve weeks ended February 10, 2018 and $1,248 for the twelve weeks ended February 11, 2017, which is recorded in Operating, selling, general and administrative expenses on the Condensed Consolidated Statements of Income. See “Note G – Pension and Savings Plans” for further discussion. (3) Foreign currency is not shown net of additional U.S. tax as earnings of non-U.S. (4) Represents realized losses on marketable securities, net of taxes of $16 for the twelve weeks ended February 10, 2018 and $18 for the twelve weeks ended February 11, 2017, which is recorded in Operating, selling, general and administrative expenses on the Condensed Consolidated Statements of Income. See “Note D – Marketable Securities” for further discussion. (5) Represents gains and losses on derivatives, net of taxes of $52 for the twelve weeks ended February 10, 2018 and $188 for the twelve weeks ended February 11, 2017, which is recorded in Interest expense, net, on the Condensed Consolidated Statements of Income. See “Note E – Derivative Financial Instruments” for further discussion. Changes in Accumulated other comprehensive loss for the twenty-four week periods ended February 10, 2018 and February 11, 2017, consisted of the following: (in thousands) Pension Liability Foreign Currency (3) Net Unrealized Gain on Derivatives Total Balance at August 26, 2017 $ (72,376 ) $ (175,814 ) $ (11 ) $ (6,356 ) $ (254,557 ) Other comprehensive income (loss) before reclassifications (1) – (35,710 ) (538 ) – (36,248 ) Amounts reclassified from Accumulated other comprehensive loss ( 1 ) 3,677 (2) – (36 ) (4) 780 (5) 4,421 Balance at February 10, 2018 $ (68,699 ) $ (211,524 ) $ (585 ) $ (5,576 ) $ (286,384 ) (in thousands) Pension Liability Foreign (3) Net Derivatives Total Balance at August 27, 2016 $ (88,890 ) $ (211,012 ) $ 120 $ (7,747 ) $ (307,529 ) Other comprehensive (loss) before reclassifications (1) – (42,933 ) (248 ) – (43,181 ) Amounts reclassified from Accumulated other comprehensive loss ( 1 ) 3,769 (2) – (27 ) (4) 651 (5) 4,393 Balance at February 11, 2017 $ (85,121 ) $ (253,945 ) $ (155 ) $ (7,096 ) $ (346,317 ) (1) Amounts in parentheses indicate debits to Accumulated other comprehensive loss. (2) Represents amortization of pension liability adjustments, net of taxes of $1,278 in fiscal 2018 and $2,634 in fiscal 2017, which is recorded in Operating, selling, general and administrative expenses on the Condensed Consolidated Statements of Income. See “Note G – Pension and Savings Plans” for further discussion. (3) Foreign currency is not shown net of additional U.S. tax as earnings of non-U.S. (4) Represents realized losses on marketable securities, net of taxes of $18 in fiscal 2018 and $15 in fiscal 2017, which is recorded in Operating, selling, general and administrative expenses on the Condensed Consolidated Statements of Income. See “Note D – Marketable Securities” for further discussion. (5) Represents gains and losses on derivatives, net of taxes of $237 in fiscal 2018 and $367 in fiscal 2017, which is recorded in Interest expense, net, on the Condensed Consolidated Statements of Income. See “Note E – Derivative Financial Instruments” for further discussion.

Goodwill and Intangibles (Table

Goodwill and Intangibles (Tables)	5 Months Ended
	Feb. 10, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Changes in Carrying Amount of Goodwill	The changes in the carrying amount of goodwill are as follows: (in thousands) Auto Parts Other Total Net balance as of August 26, 2017 $ 326,703 $ 65,184 $ 391,887 Goodwill adjustments (1) (24,058 ) (65,184 ) (89,242 ) Net balance as of February 10, 2018 $ 302,645 $ – $ 302,645 (1) See “Note L – Asset Impairments” for further discussion.
Schedule of Carrying Amounts of Intangible Assets, Other than Goodwill	The carrying amounts of intangible assets, other than goodwill, are included in Other long-term assets as follows: (in thousands) Estimated Gross Accumulated Impairment (1) Net Carrying Amortizing intangible assets: Technology 3-5 $ 10,570 $ (9,994 ) $ (576 ) $ – Noncompete agreements 5 years 1,300 (1,223 ) (77 ) – Customer relationships 3-10 years 49,676 (27,583 ) (10,057 ) 12,036 $ 61,546 $ (38,800 ) $ (10,710 ) 12,036 Non-amortizing Trade name $ (26,900 ) – Total intangible assets other than goodwill $ 12,036 (1) See “Note L – Asset Impairments” for further discussion.

Segment Reporting (Tables)

Segment Reporting (Tables)	5 Months Ended
	Feb. 10, 2018
Segment Reporting [Abstract]
Segment Results	The Company evaluates its reportable segment primarily on the basis of net sales and segment profit, which is defined as gross profit. Segment results for the periods presented were as follows: Twelve Weeks Ended Twenty-Four Weeks Ended (in thousands) February 10, 2018 February 11, 2017 February 10, 2018 February 11, 2017 Net Sales Auto Parts Locations $ 2,331,572 $ 2,205,562 $ 4,841,700 $ 4,595,123 Other 81,454 83,657 160,456 161,942 Total $ 2,413,026 $ 2,289,219 $ 5,002,156 $ 4,757,065 Segment Profit Auto Parts Locations $ 1,233,008 $ 1,160,923 $ 2,555,452 $ 2,418,689 Other 44,038 44,613 87,441 88,388 Gross profit 1,277,046 1,205,536 2,642,893 2,507,077 Operating, selling, general and administrative expenses (1) (1,071,948 ) (821,567 ) (1,969,041 ) (1,664,206 ) Interest expense, net (39,340 ) (34,198 ) (78,229 ) (67,504 ) Income before income taxes $ 165,758 $ 349,771 $ 595,623 $ 775,367 (1) Includes impairment charges of $193.2 million. See “Note L – Asset Impairments” for further discussion.

Income Taxes (Tables)

Income Taxes (Tables)	5 Months Ended
	Feb. 10, 2018
Income Tax Disclosure [Abstract]
Estimated Future Tax Payment Obligation	The estimate may change, possibly materially, due to among other things, further refinement of the Company’s calculations, changes in interpretations and assumptions the Company has made, guidance that may be issued and actions the Company may take as a result of Tax Reform. (in thousands) Scheduled 2018 $ 3,507 2019 1,847 2020 1,847 2021 1,847 2022 1,847 2023 3,464 2024 4,619 2025 5,773 Total One-Time $ 24,751

General - Additional Informatio

General - Additional Information (Detail)	5 Months Ended
	Feb. 10, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of reporting periods	Operating results for the twelve and twenty-four weeks ended February 10, 2018 are not necessarily indicative of the results that may be expected for the full fiscal year ending August 25, 2018. Each of the first three quarters of AutoZone’s fiscal year consists of 12 weeks, and the fourth quarter consists of 16 or 17 weeks. The fourth quarters for fiscal 2018 and 2017 each have 16 weeks. Additionally, the Company’s business is somewhat seasonal in nature, with the highest sales generally occurring during the months of February through September and the lowest sales generally occurring in the months of December and January.

Share-Based Payments - Addition

Share-Based Payments - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		5 Months Ended
	Feb. 10, 2018	Feb. 11, 2017	Feb. 10, 2018	Feb. 11, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense related to stock options and share purchase plans	$ 12,700	$ 10,900	$ 23,764	$ 20,711
Stock options exercised - Shares			234,114	91,136
Stock options exercised - Weighted average exercise price			$ 278.69	$ 265.16
Weighted average grant date fair value of options granted			$ 128.99	$ 139.80
Stock options granted			283,290	290,805
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Anti-dilutive shares excluded from the computation of earnings per share	609,435	645,561	844,912	605,065

Share-Based Payments - Weighted

Share-Based Payments - Weighted Average for Key Assumptions Used in Determining Fair Value of Options Granted and Related Share-Based Compensation Expense (Detail)	5 Months Ended
	Feb. 10, 2018	Feb. 11, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected price volatility	20.00%	18.00%
Risk-free interest rate	1.90%	1.20%
Weighted average expected lives (in years)	5 years 1 month 6 days	5 years 1 month 6 days
Forfeiture rate	10.00%	10.00%
Dividend yield	0.00%	0.00%

Fair Value Measurements - Compa

Fair Value Measurements - Company's Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Feb. 10, 2018	Aug. 26, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	$ 117,717	$ 100,873
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other current assets	31,935	18,573
Other long-term assets	85,782	82,300
Total	117,717	100,873
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other current assets	30,007	18,453
Other long-term assets	61,534	53,319
Total	91,541	71,772
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other current assets	1,928	120
Other long-term assets	24,248	28,981
Total	$ 26,176	$ 29,101

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Feb. 10, 2018	Aug. 26, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	$ 31,935	$ 18,573
Long-term marketable securities	$ 85,782	$ 82,300

Marketable Securities - Availab

Marketable Securities - Available-for-Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Feb. 10, 2018	Aug. 26, 2017
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	$ 118,610	$ 100,885
Available-For-Sale Marketable Securities, Gross Unrealized Gains		152
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(893)	(164)
Available-For-Sale Marketable Securities, Fair Value	117,717	100,873
Corporate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	65,261	39,917
Available-For-Sale Marketable Securities, Gross Unrealized Gains		73
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(533)	(13)
Available-For-Sale Marketable Securities, Fair Value	64,728	39,977
Government Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	22,996	31,076
Available-For-Sale Marketable Securities, Gross Unrealized Gains		49
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(129)	(74)
Available-For-Sale Marketable Securities, Fair Value	22,867	31,051
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	4,005	4,850
Available-For-Sale Marketable Securities, Gross Unrealized Gains		2
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(79)	(42)
Available-For-Sale Marketable Securities, Fair Value	3,926	4,810
Asset-Backed Securities and Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	26,348	25,042
Available-For-Sale Marketable Securities, Gross Unrealized Gains		28
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(152)	(35)
Available-For-Sale Marketable Securities, Fair Value	$ 26,196	$ 25,035

Marketable Securities - Additio

Marketable Securities - Additional Information (Detail) $ in Thousands	5 Months Ended
	Feb. 10, 2018USD ($)Securities	Aug. 26, 2017USD ($)
Investments, Debt and Equity Securities [Abstract]
Available for sale securities debt maturity period range	Less than one year to approximately three years
Number of securities available for sale loss position | Securities	112
Available-For-Sale Marketable Securities, Gross Unrealized Losses	$ 893	$ 164
Marketable securities transferred	$ 85,000

Derivative Financial Instrume41

Derivative Financial Instruments - Additional Information (Detail) $ in Thousands	3 Months Ended	5 Months Ended
	Feb. 10, 2018USD ($)	Feb. 10, 2018USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative losses recorded in Accumulated other comprehensive loss	$ 9,000	$ 9,000
Net derivative losses amortized into Interest expense	509	1,000
Net derivative loss expected to be reclassified over next 12 months	$ 2,200	$ 2,200

Merchandise Inventories - Addit

Merchandise Inventories - Additional Information (Detail) - USD ($) $ in Millions	Feb. 10, 2018	Aug. 26, 2017
Inventory Disclosure [Abstract]
Unrecorded adjustment for LIFO value in excess of replacement value	$ 433.5	$ 414.9

Pension and Savings Plans - Net

Pension and Savings Plans - Net Periodic Benefit Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		5 Months Ended
	Feb. 10, 2018	Feb. 11, 2017	Feb. 10, 2018	Feb. 11, 2017
Retirement Benefits [Abstract]
Interest cost	$ 2,390	$ 2,385	$ 4,780	$ 4,770
Expected return on plan assets	(4,384)	(4,628)	(8,768)	(9,257)
Amortization of net loss	2,478	3,201	4,955	6,403
Net periodic pension expense	$ 484	$ 958	$ 967	$ 1,916

Pension and Savings Plans - Add

Pension and Savings Plans - Additional Information (Detail)	Dec. 19, 2017USD ($)
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash contribution required to fully fund plan's liabilities at termination	$ 20,000,000
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash contribution required to fully fund plan's liabilities at termination	$ 30,000,000

Financing - Schedule of Debt (D

Financing - Schedule of Debt (Detail) - USD ($) $ in Thousands	Feb. 10, 2018	Aug. 26, 2017
Debt Instrument [Line Items]
Commercial paper	$ 1,115,500	$ 1,155,100
Total debt before discounts and debt issuance costs	5,065,500	5,105,100
Less: Discounts and debt issuance costs	21,959	23,862
Long-term debt	5,043,541	5,081,238
7.125% Senior Notes due August 2018, effective interest rate of 7.28% [Member]
Debt Instrument [Line Items]
Senior notes	250,000	250,000
1.625% Senior Notes due April 2019, effective interest rate of 1.77% [Member]
Debt Instrument [Line Items]
Senior notes	250,000	250,000
4.000% Senior Notes due November 2020, effective interest rate of 4.43% [Member]
Debt Instrument [Line Items]
Senior notes	500,000	500,000
2.500% Senior Notes due April 2021, effective interest rate of 2.62% [Member]
Debt Instrument [Line Items]
Senior notes	250,000	250,000
3.700% Senior Notes due April 2022, effective interest rate of 3.85% [Member]
Debt Instrument [Line Items]
Senior notes	500,000	500,000
2.875% Senior Notes due January 2023, effective interest rate of 3.21% [Member]
Debt Instrument [Line Items]
Senior notes	300,000	300,000
3.125% Senior Notes due July 2023, effective interest rate of 3.26% [Member]
Debt Instrument [Line Items]
Senior notes	500,000	500,000
3.250% Senior Notes due April 2025, effective interest rate 3.36% [Member]
Debt Instrument [Line Items]
Senior notes	400,000	400,000
3.125% Senior Notes due April 2026, effective interest rate of 3.28% [Member]
Debt Instrument [Line Items]
Senior notes	400,000	400,000
3.750% Senior Notes due June 2027, effective interest rate of 3.83% [Member]
Debt Instrument [Line Items]
Senior notes	$ 600,000	$ 600,000

Financing - Schedule of Debt (P

Financing - Schedule of Debt (Parenthetical) (Detail)	5 Months Ended	12 Months Ended
	Feb. 10, 2018	Aug. 26, 2017
Commercial paper, weighted average interest rate of 1.44% and 1.44% at November 18, 2017 and August 26, 2017, respectively [Member]
Debt Instrument [Line Items]
Weighted average interest rate of commercial paper	1.80%	1.44%
7.125% Senior Notes due August 2018, effective interest rate of 7.28% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	7.125%	7.125%
Effective interest rate	7.28%	7.28%
Debt instrument maturity, month and year	2018-08	2018-08
1.625% Senior Notes due April 2019, effective interest rate of 1.77% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	1.625%	1.625%
Effective interest rate	1.77%	1.77%
Debt instrument maturity, month and year	2019-04	2019-04
4.000% Senior Notes due November 2020, effective interest rate of 4.43% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	4.00%	4.00%
Effective interest rate	4.43%	4.43%
Debt instrument maturity, month and year	2020-11	2020-11
2.500% Senior Notes due April 2021, effective interest rate of 2.62% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	2.50%	2.50%
Effective interest rate	2.62%	2.62%
Debt instrument maturity, month and year	2021-04	2021-04
3.700% Senior Notes due April 2022, effective interest rate of 3.85% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	3.70%	3.70%
Effective interest rate	3.85%	3.85%
Debt instrument maturity, month and year	2022-04	2022-04
2.875% Senior Notes due January 2023, effective interest rate of 3.21% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	2.875%	2.875%
Effective interest rate	3.21%	3.21%
Debt instrument maturity, month and year	2023-01	2023-01
3.125% Senior Notes due July 2023, effective interest rate of 3.26% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	3.125%	3.125%
Effective interest rate	3.26%	3.26%
Debt instrument maturity, month and year	2023-07	2023-07
3.250% Senior Notes due April 2025, effective interest rate 3.36% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	3.25%	3.25%
Effective interest rate	3.36%	3.36%
Debt instrument maturity, month and year	2025-04	2025-04
3.125% Senior Notes due April 2026, effective interest rate of 3.28% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	3.125%	3.125%
Effective interest rate	3.28%	3.28%
Debt instrument maturity, month and year	2026-04	2026-04
3.750% Senior Notes due June 2027, effective interest rate of 3.83% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	3.75%	3.75%
Effective interest rate	3.83%	3.83%
Debt instrument maturity, month and year	2027-06	2027-06

Financing - Additional Informat

Financing - Additional Information (Detail) - USD ($)	Nov. 18, 2016	Feb. 10, 2018	Aug. 26, 2017
Debt Instrument [Line Items]
Remaining borrowing capacity under revolving credit facility		$ 1,997,000,000
Amount available under credit facility		2,000,000,000
Fair value of the Company's debt		5,049,000,000	$ 5,171,000,000
Excess (shortfall) of fair value of debt over (from) carrying value		5,400,000	90,300,000
Third Amended and Restated Credit Agreement [Member]
Debt Instrument [Line Items]
Amount available under credit facility		$ 1,600,000,000
New 364-Day Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Maximum amount available under credit facility	$ 400,000,000
Credit facility expiration date		Nov. 17, 2017
Credit Agreement description		The credit facility was available to primarily support commercial paper borrowings and other short-term unsecured bank loans. Under the credit facility, the Company could borrow funds consisting of Eurodollar loans, base rate loans or a combination of both. Interest accrued on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable margin, as defined in the revolving credit facility, depending upon the Company’s senior, unsecured, (non-credit enhanced) long-term debt rating. Interest accrued on base rate loans as defined in the credit facility. The New 364-Day Credit Agreement expired on November 17, 2017, and the Company did not renew this revolving credit facility.
Extended expiration of credit facility	1 year
Credit facility interest rate description		Interest accrued on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable margin, as defined in the revolving credit facility, depending upon the Company’s senior, unsecured, (non-credit enhanced) long-term debt rating. Interest accrued on base rate loans as defined in the credit facility.
364-Day Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Maximum amount available under credit facility	$ 500,000,000
Master Extension Agreement [Member]
Debt Instrument [Line Items]
Amount available under credit facility		$ 2,000,000,000
Revolving credit agreement, available additional borrowing capacity		400,000,000
Maximum amount available under credit facility		$ 2,400,000,000
Credit facility expiration date		Nov. 18, 2022
Credit Agreement description		Under the revolving credit facility, the Company may borrow funds consisting of Eurodollar loans, base rate loans or a combination of both. Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable percentage, as defined in the revolving credit facility, depending upon the Company’s senior, unsecured, (non-credit enhanced) long-term debt rating. Interest accrues on base rate loans as defined in the credit facility.
Extended expiration of credit facility		1 year
Letters of credit, outstanding		$ 3,300,000
7.125% Senior Notes due August 2018, effective interest rate of 7.28% [Member]
Debt Instrument [Line Items]
Long-term debt		$ 250,000,000	$ 250,000,000
Stated interest rate percentage		7.125%	7.125%
Debt instrument maturity, month and year		2018-08	2018-08

Stock Repurchase Program - Addi

Stock Repurchase Program - Additional Information (Detail) - USD ($)	Mar. 21, 2017	Feb. 11, 2018	Feb. 10, 2018	Feb. 11, 2017	Feb. 10, 2018
Stock Repurchase Program [Line Items]
Stock repurchased cumulative, shares			824,733		143,100,000
Purchase of treasury stock			$ 527,454,000	$ 560,619,000	$ 18,354,000,000
Repurchased shares of common stock at an aggregate cost			527,500,000
Increase in authorization of stock repurchase, value	$ 750,000,000
Stock repurchase authorized amended value	$ 18,650,000,000
Remaining value authorized for share repurchases			$ 296,200,000		$ 296,200,000
Share of treasury stock retired			1,500,000	1,800,000
Retained Deficit [Member]
Stock Repurchase Program [Line Items]
Retirement of treasury shares			$ 918,500,000	$ 1,321,000,000
Additional Paid-In Capital [Member]
Stock Repurchase Program [Line Items]
Retirement of treasury shares			$ 60,500,000	$ 64,900,000
Subsequent Events [Member]
Stock Repurchase Program [Line Items]
Stock repurchased cumulative, shares		382,928
Repurchased shares of common stock at an aggregate cost		$ 264,900,000

Accumulated Other Comprehensi49

Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended		5 Months Ended
	Feb. 10, 2018	Feb. 11, 2017	Feb. 10, 2018	Feb. 11, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ (1,428,377)
Ending Balance	$ (1,330,547)		(1,330,547)
Pension Liability [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(71,060)	$ (87,074)	(72,376)	$ (88,890)
Amounts reclassified from Accumulated other comprehensive loss	2,361	1,953	3,677	3,769
Ending Balance	(68,699)	(85,121)	(68,699)	(85,121)
Foreign Currency [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(219,031)	(251,603)	(175,814)	(211,012)
Other comprehensive income (loss) before reclassifications	7,507	(2,342)	(35,710)	(42,933)
Ending Balance	(211,524)	(253,945)	(211,524)	(253,945)
Net Unrealized Gain (Loss) on Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(327)	(109)	(11)	120
Other comprehensive income (loss) before reclassifications	(224)	(13)	(538)	(248)
Amounts reclassified from Accumulated other comprehensive loss	(34)	(33)	(36)	(27)
Ending Balance	(585)	(155)	(585)	(155)
Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(6,033)	(7,417)	(6,356)	(7,747)
Amounts reclassified from Accumulated other comprehensive loss	457	321	780	651
Ending Balance	(5,576)	(7,096)	(5,576)	(7,096)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(296,451)	(346,203)	(254,557)	(307,529)
Other comprehensive income (loss) before reclassifications	7,283	(2,355)	(36,248)	(43,181)
Amounts reclassified from Accumulated other comprehensive loss	2,784	2,241	4,421	4,393
Ending Balance	$ (286,384)	$ (346,317)	$ (286,384)	$ (346,317)

Accumulated Other Comprehensi50

Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended		5 Months Ended
	Feb. 10, 2018	Feb. 11, 2017	Feb. 10, 2018	Feb. 11, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pension liability adjustments, taxes	$ 117	$ 1,248	$ 1,278	$ 2,634
Unrealized gains (losses) on marketable securities, taxes	139	2	309	146
Net derivative activities, taxes	(52)	(188)	(237)	(367)
Reclassified from Accumulated Other Comprehensive Income [Member] | Pension Liability [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pension liability adjustments, taxes	117	1,248	1,278	2,634
Reclassified from Accumulated Other Comprehensive Income [Member] | Net Unrealized Gain (Loss) on Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on marketable securities, taxes	16	18	18	15
Reclassified from Accumulated Other Comprehensive Income [Member] | Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net derivative activities, taxes	$ 52	$ 188	$ 237	$ 367

Goodwill and Intangibles - Sche

Goodwill and Intangibles - Schedule of Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	5 Months Ended
	Feb. 10, 2018USD ($)
Goodwill [Line Items]
Goodwill, Beginning balance	$ 391,887
Goodwill adjustments	(89,242)
Goodwill, Ending balance	302,645
Auto Parts Stores [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	326,703
Goodwill adjustments	(24,058)
Goodwill, Ending balance	302,645
Other [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	65,184
Goodwill adjustments	$ (65,184)

Goodwill and Intangibles - Sc52

Goodwill and Intangibles - Schedule of Carrying Amounts of Intangible Assets, Other than Goodwill (Detail) $ in Thousands	5 Months Ended
	Feb. 10, 2018USD ($)
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	$ 61,546
Finite Lived, Accumulated Amortization	(38,800)
Finite Lived, Impairment	(10,710)
Finite Lived, Net Carrying Amount	12,036
Total intangible assets other than goodwill, Net Carrying Amount	12,036
Technology [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	10,570
Finite Lived, Accumulated Amortization	(9,994)
Finite Lived, Impairment	$ (576)
Technology [Member] | Minimum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	3 years
Technology [Member] | Maximum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years
Noncompete Agreements [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years
Finite Lived, Gross Carrying Amount	$ 1,300
Finite Lived, Accumulated Amortization	(1,223)
Finite Lived, Impairment	(77)
Customer Relationships [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	49,676
Finite Lived, Accumulated Amortization	(27,583)
Finite Lived, Impairment	(10,057)
Finite Lived, Net Carrying Amount	$ 12,036
Customer Relationships [Member] | Minimum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	3 years
Customer Relationships [Member] | Maximum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	10 years
Trade Names [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Impairment	$ (26,900)

Goodwill and Intangibles - Addi

Goodwill and Intangibles - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		5 Months Ended
	Feb. 10, 2018	Feb. 11, 2017	Feb. 10, 2018	Feb. 11, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense of intangible assets	$ 1.4	$ 1.9	$ 2.8	$ 4

Asset Impairment - Additional I

Asset Impairment - Additional Information (Detail) - USD ($) $ in Thousands	5 Months Ended
	Feb. 10, 2018	Aug. 26, 2017
Asset Impairment Charges [Line Items]
Asset impairment charges	$ 193,162
Assets	9,403,719	$ 9,259,781
Accounts receivable	282,532	280,733
Merchandise inventories	4,085,528	3,882,086
Accounts payable	4,365,666	$ 4,168,940
Auto Anything [Member] | Other [Member]
Asset Impairment Charges [Line Items]
Goodwill impairments	65,200
Intangible assets impairment	34,400
IMC Businesses [Member] | Auto Parts Locations [Member]
Asset Impairment Charges [Line Items]
Inventory impairments	48,300
Goodwill impairments	24,100
Long-lived assets impaired	18,000
Intangible assets impairment	3,200
Auto Anything and IMC Businesses [Member]
Asset Impairment Charges [Line Items]
Asset impairment charges	193,200
Assets	97,400
Liabilities	59,000
Accounts receivable	22,200
Merchandise inventories	64,600
Accounts payable	$ 47,700

Segment Reporting - Additional

Segment Reporting - Additional Information (Detail)	5 Months Ended
	Feb. 10, 2018ItemLocation
Segment Reporting [Abstract]
Number of operating segments	4
Number of reportable segments	1
Number of automotive parts and accessories locations in the United States, Puerto Rico, Mexico, and Brazil | Location	6,088

Segment Reporting - Segment Res

Segment Reporting - Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended		5 Months Ended
	Feb. 10, 2018	Feb. 11, 2017	Feb. 10, 2018	Feb. 11, 2017
Segment Reporting Information [Line Items]
Net sales	$ 2,413,026	$ 2,289,219	$ 5,002,156	$ 4,757,065
Gross profit	1,277,046	1,205,536	2,642,893	2,507,077
Operating, selling, general and administrative expenses	(1,071,948)	(821,567)	(1,969,041)	(1,664,206)
Interest expense, net	(39,340)	(34,198)	(78,229)	(67,504)
Income before income taxes	165,758	349,771	595,623	775,367
Auto Parts Locations [Member]
Segment Reporting Information [Line Items]
Net sales	2,331,572	2,205,562	4,841,700	4,595,123
Gross profit	1,233,008	1,160,923	2,555,452	2,418,689
Other [Member]
Segment Reporting Information [Line Items]
Net sales	81,454	83,657	160,456	161,942
Gross profit	$ 44,038	$ 44,613	$ 87,441	$ 88,388

Segment Reporting - Segment R57

Segment Reporting - Segment Results (Parenthetical) (Detail) $ in Thousands	5 Months Ended
	Feb. 10, 2018USD ($)
Segment Reporting Information [Line Items]
Asset impairment charges	$ 193,162
Auto Anything and IMC Businesses [Member]
Segment Reporting Information [Line Items]
Asset impairment charges	193,200
Auto Anything and IMC Businesses [Member] | Selling, General and Administrative Expenses
Segment Reporting Information [Line Items]
Asset impairment charges	$ 193,200

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	5 Months Ended	12 Months Ended
	Feb. 10, 2018	Feb. 10, 2018	Aug. 25, 2018
Operating Loss Carryforwards [Line Items]
Effective tax rate	(74.70%)	4.20%
Tax benefit resulting from tax reforms	$ 111,900	$ 111,900
Excess tax benefits from option exercise	32,100	$ 34,300
Tax benefit on one tax expense due to tax reforms	$ 35,300
U.S. corporate income tax rate	35.00%	35.00%
Tax benefit resulting from tax reforms	$ 24,200	$ 59,500
Change in long-term effective tax		24.50%
One-time mandatory transition tax		$ 24,751
Tax expense due to remeasurement of net U.S. federal deferred tax liability		$ 136,700
Scenario Forecast [Member]
Operating Loss Carryforwards [Line Items]
U.S. corporate income tax rate			21.00%
Scenario, Plan [Member]
Operating Loss Carryforwards [Line Items]
U.S. corporate income tax rate			25.90%
Scenario, Plan [Member] | Minimum [Member]
Operating Loss Carryforwards [Line Items]
U.S. corporate income tax rate			21.00%

Income Taxes - Estimated Future

Income Taxes - Estimated Future Tax Payment Obligation (Detail) $ in Thousands	5 Months Ended
	Feb. 10, 2018USD ($)
Estimated future tax payment obligations [Abstract]
2,018	$ 3,507
2,019	1,847
2,020	1,847
2,021	1,847
2,022	1,847
2,023	3,464
2,024	4,619
2,025	5,773
Total One-Time Transition Tax Forecasted Obligation Payments	$ 24,751