Significant Accounting Policies (Policies)

12 Months Ended

Aug. 31, 2019

Accounting Policies [Abstract]

Business

Business: AutoZone, Inc. (“AutoZone” or the “Company”) is the leading retailer, and a leading distributor, of automotive replacement parts and accessories in the Americas. At the end of fiscal 2019, the Company operated 5,772 stores in the United States, including Puerto Rico and Saint Thomas; 604 stores in Mexico; and 35 stores in Brazil. Each store 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 products. At the end of fiscal 2019, 4,893 of the domestic stores had a commercial sales program that provides commercial credit and prompt delivery of parts and other products to local, regional and national repair garages, dealers, service stations and public sector accounts. The Company also had commercial programs in stores in Mexico and Brazil. The Company also sells the ALLDATA brand automotive diagnostic and repair software through www.alldata.com and www.alldatadiy.com. Additionally, the Company sells automotive hard parts, maintenance items, accessories, and non-automotive products through www.autozone.com, and its commercial customers can make purchases through www.autozonepro.com. Additionally, on www.duralastparts.com we provide product information on our Duralast branded product. The Company does not derive revenue from automotive repair or installation services.

Fiscal Year

Fiscal Year: The Company’s fiscal year consists of 52 or 53 weeks ending on the last Saturday in August. Fiscal 2019 represented 53 weeks. Fiscal 2018 and 2017 represented 52 weeks.

Basis of Presentation

Basis of Presentation: The Consolidated Financial Statements include the accounts of AutoZone, Inc. and its wholly owned subsidiaries. All significant intercompany transactions and balances have been eliminated in consolidation.

Use of Estimates

Use of Estimates: Management of the Company has made a number of estimates and assumptions relating to the reporting of assets and liabilities and the disclosure of contingent liabilities to prepare these financial statements. Actual results could differ from those estimates.

Cash and Cash Equivalents

Cash and Cash Equivalents: Cash equivalents consist of investments with original maturities of 90 days or less at the date of purchase. Cash equivalents include proceeds due from credit and debit card transactions with settlement terms of less than five days. Credit and debit card receivables included within cash and cash equivalents were $59.4 million at August 31, 2019 and $51.0 million at August 25, 2018.

Cash balances are held in various locations around the world. Cash and cash equivalents of $49.9 million and $98.8 million were held outside of the U.S. as of August 31, 2019, and August 25, 2018, respectively, and were generally utilized to support the liquidity needs in foreign operations.

Accounts Receivable

Accounts Receivable: Accounts receivable consists of receivables from commercial customers and vendors, and is presented net of an allowance for uncollectible accounts. AutoZone routinely grants credit to certain of its commercial customers. The risk of credit loss in its trade receivables is substantially mitigated by the Company’s credit evaluation process, short collection terms and sales to a large number of customers, as well as the low dollar value per transaction for most of its sales. Allowances for potential credit losses are determined based on historical experience and current evaluation of the composition of accounts receivable. Historically, credit losses have been within management’s expectations and the balance of the allowance for uncollectible accounts was $8.5 million at August 31, 2019, and $6.1 million at August 25, 2018.

Merchandise Inventories

Merchandise Inventories: 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 (“LIFO”) method stated at the lower of cost or market for domestic inventories and the weighted average cost method for Mexico and Brazil inventories stated at the lower of cost or net realizable value. Due to historical price deflation on the Company’s merchandise purchases, the Company has exhausted its LIFO reserve balance. The Company’s policy is to not write up inventory in excess of replacement cost. The difference between LIFO cost and replacement cost, which will be reduced upon experiencing price inflation on the Company’s merchandise purchases, was $404.9 million at August 31, 2019, and $452.4 million at August 25, 2018.

Marketable Securities

Marketable Debt Securities: The Company invests a portion of its assets held by the Company’s wholly owned insurance captive in marketable debt securities and classifies them as available-for-sale. The Company includes these debt securities within the Other current assets and Other long-term assets captions in the accompanying Consolidated Balance Sheets and records the amounts at fair market value, which is determined using quoted market prices at the end of the reporting period. A discussion of marketable debt securities is included in “Note E – Fair Value Measurements” and “Note F – Marketable Debt Securities.”

Property and Equipment

Property and Equipment: Property and equipment is stated at cost. Depreciation and amortization are computed principally using the straight-line method over the following estimated useful lives: buildings, 40 to 50 years; building improvements, 5 to 15 years; equipment, including software, 3 to 10 years; and leasehold improvements, over the shorter of the asset’s estimated useful life or the remaining lease term, which includes any reasonably assured renewal periods. Depreciation and amortization include amortization of assets under capital lease.

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets: The Company evaluates the recoverability of its long-lived assets whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. When such an event occurs, the Company compares the sum of the undiscounted expected future cash flows of the asset (asset group) with the carrying amounts of the asset. If the undiscounted expected future cash flows are less than the carrying value of the assets, the Company measures the amount of impairment loss as the amount by which the carrying amount of the assets exceeds the fair value of the assets.

Goodwill

Goodwill: The cost in excess of fair value of identifiable net assets of businesses acquired is recorded as goodwill. Goodwill has not been amortized since fiscal 2001, but an analysis is performed at least annually to compare the fair value of the reporting unit to the carrying amount to determine if any impairment exists. The Company performs its annual impairment assessment in the fourth quarter of each fiscal year, unless circumstances dictate more frequent assessments. Refer to “Note N – Goodwill and Intangibles” for additional disclosures regarding the Company’s goodwill and impairment assessment.

Intangible Assets

Intangible Assets: Intangible assets consist of customer relationships purchased relating to ALLDATA operations. Amortizing intangible assets are amortized over periods ranging from 3 to 10 years. Refer to “Note N – Goodwill and Intangibles” and “Note M – Sale of Assets” for additional disclosures regarding the Company’s intangible assets and impairment assessment.

Derivative Instruments and Hedging Activities

Derivative Instruments and Hedging Activities: AutoZone is exposed to market risk from, among other things, changes in interest rates, foreign exchange rates and fuel prices. From time to time, the Company uses various derivative instruments to reduce such risks. To date, based upon the Company’s current level of foreign operations, no derivative instruments have been utilized to reduce foreign exchange rate risk. All of the Company’s hedging activities are governed by guidelines that are authorized by AutoZone’s Board of Directors (the “Board”). Further, the Company does not buy or sell derivative instruments for trading purposes.

AutoZone’s financial market risk results primarily from changes in interest rates. At times, AutoZone reduces its exposure to changes in interest rates by entering into various interest rate hedge instruments such as interest rate swap contracts, treasury lock agreements and forward-starting interest rate swaps. All of the Company’s interest rate hedge instruments are designated as cash flow hedges. Refer to “Note H – Derivative Financial Instruments” for additional disclosures regarding the Company’s derivative instruments and hedging activities. Cash flows related to these instruments designated as qualifying hedges are reflected in the accompanying Consolidated Statements of Cash Flows in the same categories as the cash flows from the items being hedged. Accordingly, cash flows relating to the settlement of interest rate derivatives hedging the forecasted issuance of debt have been reflected upon settlement as a component of financing cash flows. The resulting gain or loss from such settlement is deferred to Accumulated Other Comprehensive Loss and reclassified to interest expense over the term of the underlying debt. This reclassification of the deferred gains and losses impacts the interest expense recognized on the underlying debt that was hedged and is therefore reflected as a component of operating cash flows in periods subsequent to settlement.

Foreign Currency

Foreign Currency: The Company accounts for its Mexican, Brazilian, Canadian, European, Chinese and German operations using the local market currency and converts its financial statements from these currencies to U.S. dollars. The cumulative loss on currency translation is recorded as a component of Accumulated Other Comprehensive Loss (Refer to “Note G – Accumulated Other Comprehensive Loss”) for additional information regarding the Company’s Accumulated Other Comprehensive Loss.

Self-Insurance Reserves

Self-Insurance Reserves:     The Company retains a significant portion of the risks associated with workers’ compensation, general liability, products liability, property and vehicle insurance. The Company obtains third party insurance to limit the exposure related to certain of these risks. The reserve for the Company’s liability associated with these risks totaled $207.0 million and $203.1 million at August 31, 2019 and August 25, 2018, respectively.

The assumptions made by management in estimating its self-insurance reserves include consideration of historical cost experience, judgments about the present and expected levels of cost per claim and retention levels. The Company utilizes various methods, including analyses of historical trends and use of a specialist, to estimate the costs to settle reported claims and claims incurred but not yet reported. The actuarial methods develop estimates of the future ultimate claim costs based on claims incurred as of the balance sheet date. When estimating these liabilities, the Company considers factors, such as the severity, duration and frequency of claims, legal costs associated with claims, healthcare trends and projected inflation of related factors.

The Company’s liabilities for workers’ compensation, general and product liability, property and vehicle claims do not have scheduled maturities; however, the timing of future payments is predictable based on historical patterns and is relied upon in determining the current portion of these liabilities. Accordingly, the Company reflects the net present value of the obligations it determines to be long-term using the risk-free interest rate as of the balance sheet date.

Deferred Rent

Deferred Rent: The Company recognizes rent expense on a straight-line basis over the course of the lease term, which includes any reasonably assured renewal periods, beginning on the date the Company takes physical possession of the property (see “Note O – Leases”). Differences between this calculated expense and cash payments are recorded as a liability within the Accrued expenses and other and Other long-term liabilities captions in the accompanying Consolidated Balance Sheets, based on the terms of the lease. Deferred rent approximated $159.9 million as of August 31, 2019, and $139.6 million as of August 25, 2018.

Financial Instruments

Financial Instruments: 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 I – Financing,” marketable debt securities is included in “Note F – Marketable Debt Securities,” and derivatives is included in “Note H – Derivative Financial Instruments.”

Income Taxes

Income Taxes: The Company accounts for income taxes under the liability method. Deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. Our effective tax rate is based on income by tax jurisdiction, statutory rates and tax saving initiatives available to the Company in the various jurisdictions in which we operate.

The Company recognizes liabilities for uncertain income tax positions based on a two-step process. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step requires the Company to estimate and measure the tax benefit as the largest amount that is more than 50% likely to be realized upon ultimate settlement. It is inherently difficult and subjective to estimate such amounts, as the Company must determine the probability of various possible outcomes. The Company reevaluates these uncertain tax positions on a quarterly basis or when new information becomes available to management. These reevaluations are based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, successfully settled issues under audit, expirations due to statutes and new audit activity. Such a change in recognition or measurement could result in the recognition of a tax benefit or an increase to the tax accrual.

The Company classifies interest related to income tax liabilities, and if applicable, penalties, as a component of Income tax expense. The income tax liabilities and accrued interest and penalties that are expected to be payable within one year of the balance sheet date are presented within the Accrued expenses and other caption in the accompanying Consolidated Balance Sheets.

The remaining portion of the income tax liabilities and accrued interest and penalties are presented within the Other long-term liabilities caption in the accompanying Consolidated Balance Sheets because payment of cash is not anticipated within one year of the balance sheet date. Refer to “Note D – Income Taxes” for additional disclosures regarding the Company’s income taxes.

Sales and Use Taxes

Sales and Use Taxes: Governmental authorities assess sales and use taxes on the sale of goods and services. The Company excludes taxes collected from customers in its reported sales results; such amounts are included within the Accrued expenses and other caption until remitted to the taxing authorities.

Dividends

Dividends: The Company currently does not pay a dividend on its common stock. The ability to pay dividends is subject to limitations imposed by Nevada law. Under Nevada law, any future payment of dividends would be dependent upon the Company’s financial condition, capital requirements, earnings and cash flow.

Revenue Recognition

Revenue Recognition: The Company’s primary source of revenue is derived from the sale of automotive aftermarket parts and merchandise to its retail and commercial customers. Revenue is recognized when performance obligations under the terms of a contract with a customer are satisfied, in an amount representing the consideration the Company expects to receive in exchange for selling products to its customers. Sales are recorded net of variable consideration in the period incurred, including discounts, sales incentives and rebates, sales taxes and estimated sales returns. Sales returns are based on historical return rates. The Company may enter into contracts that include multiple combinations of products and services, which are accounted for as separate performance obligations and do not require significant judgment.

The Company’s performance obligations are typically satisfied when the customer takes possession of the merchandise. Revenue from retail customers is recognized when the customer leaves our store with the purchased products, typically at the point of sale or for E-commerce orders when the product is shipped. Revenue from commercial customers is recognized upon delivery, typically same-day. Payment from retail customers is at the point of sale and payment terms for commercial customers are based on the Company’s pre-established credit requirements and generally range from 1 to 30 days. Discounts, sales incentives and rebates are treated as separate performance obligations, and revenue allocated to these performance obligations is recognized as the obligations to the customer are satisfied. Additionally, the Company estimates and records gift card breakage as redemptions occur. The Company offers diagnostic and repair information software used in the automotive repair industry through ALLDATA. This revenue is recognized as services are provided. Revenue from these services are recognized over the life of the contract. See “Note R - Revenue Recognition” for further discussion.

A portion of the Company’s transactions include the sale of auto parts that contain a core component. The core component represents the recyclable portion of the auto part. Customers are not charged for the core component of the new part if a used core is returned at the point of sale of the new part; otherwise the Company charges customers a specified amount for the core component. The Company refunds that same amount upon the customer returning a used core to the store at a later date. The Company does not recognize sales or cost of sales for the core component of these transactions when a used part is returned or expected to be returned from the customer.

Vendor Allowances and Advertising Costs

Vendor Allowances and Advertising Costs: The Company receives various payments and allowances from its vendors through a variety of programs and arrangements. Monies received from vendors include rebates, allowances and promotional funds. The amounts to be received are subject to the terms of the vendor agreements, which generally do not state an expiration date, but are subject to ongoing negotiations that may be impacted in the future based on changes in market conditions, vendor marketing strategies and changes in the profitability or sell-through of the related merchandise.

Rebates and other miscellaneous incentives are earned based on purchases or product sales and are accrued ratably over the purchase or sale of the related product. These monies are generally recorded as a reduction of merchandise inventories and are recognized as a reduction to cost of sales as the related inventories are sold.

For arrangements that provide for reimbursement of specific, incremental, identifiable costs incurred by the Company in selling the vendors’ products, the vendor funds are recorded as a reduction to Operating, selling, general and administrative expenses in the period in which the specific costs were incurred.

The Company expenses advertising costs as incurred. Advertising expense, net of vendor promotional funds, was $87.5 million in fiscal 2019, $95.2 million in fiscal 2018, and $93.1 million in fiscal 2017. Vendor promotional funds, which reduced advertising expense, amounted to $32.2 million in fiscal 2019, $25.3 million in fiscal 2018, and $28.3 million in fiscal 2017.

Cost of Sales and Operating, Selling, General and Administrative Expenses

Cost of Sales and Operating, Selling, General and Administrative Expenses: The following illustrates the primary costs classified in each major expense category:

Cost of Sales

• Total cost of merchandise sold, including:

• Freight expenses associated with moving merchandise inventories from the Company’s vendors to the distribution centers;

• Vendor allowances that are not reimbursements for specific, incremental and identifiable costs

• Costs associated with operating the Company’s supply chain, including payroll and benefit costs, warehouse occupancy costs, transportation costs and depreciation; and

• Inventory shrinkage

Operating, Selling, General and Administrative Expenses

• Payroll and benefit costs for store, field leadership and store support employees;

• Occupancy costs of store and store support facilities;

• Depreciation and amortization related to store and store support assets;

• Transportation costs associated with field leadership, commercial sales force and deliveries from stores;

• Advertising;

• Self-insurance costs; and

• Other administrative costs, such as credit card transaction fees, legal costs, supplies and travel and lodging

Warranty Costs

Warranty Costs: The Company or the vendors supplying its products provides the Company’s customers limited warranties on certain products that range from 30 days to lifetime. In most cases, the Company’s vendors are primarily responsible for warranty claims. Warranty costs relating to merchandise sold under warranty not covered by vendors are estimated and recorded as warranty obligations at the time of sale based on each product’s historical return rate. These obligations, which are often funded by vendor allowances, are recorded within the Accrued expenses and other caption in the Consolidated Balance Sheets. For vendor allowances that are in excess of the related estimated warranty expense for the vendor’s products, the excess is recorded in inventory and recognized as a reduction to cost of sales as the related inventory is sold.

Shipping and Handling Costs

Shipping and Handling Costs: The Company does not generally charge customers separately for shipping and handling. Substantially all the costs the Company incurs to ship products to our stores are included in cost of sales.

Pre-opening Expenses

Pre-opening Expenses: Pre-opening expenses, which consist primarily of payroll and occupancy costs, are expensed as incurred.

Earnings per Share

Earnings per Share: Basic earnings per share is based on the weighted average outstanding common shares. Diluted earnings per share is based on the weighted average outstanding common shares adjusted for the effect of common stock equivalents, which are primarily stock options. There were 90,314 stock options excluded from the diluted earnings per share calculation because they would have been anti-dilutive as of August 31, 2019. There were 847,279 stock options excluded for the year ended August 25, 2018, and 620,025 stock options excluded for the year ended August 26, 2017, because they would have been anti-dilutive.

Share-Based Payments

Share-Based Payments: Share-based payments include stock option grants, restricted stock, restricted stock units, stock appreciation rights and other transactions under the Company’s equity incentive plans. The Company recognizes compensation expense for its share-based payments over the requisite service period based on the fair value of the awards. The Company uses the Black-Scholes option pricing model to calculate the fair value of stock options. The value of restricted stock is based on the stock price of the award on the grant date. See “Note B – Share-Based Payments” for further discussion.

Risk and Uncertainties

Risk and Uncertainties: In fiscal 2019, one class of similar products accounted for approximately 13 percent of the Company’s total revenues, and one vendor supplied approximately 12 percent of the Company’s total purchases. No other class of similar products accounted for 10 percent or more of total revenues, and no other individual vendor provided more than 10 percent of total purchases.

Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements:

In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). This ASU, along with subsequent ASUs issued to clarify certain provisions of ASU 2014-09, is a comprehensive new revenue recognition model that expands disclosure requirements and requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration a company expects to receive in exchange for those goods or services. It also requires more detailed disclosures to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. Companies that transition to this new standard may either retrospectively restate each prior reporting period or follow the modified retrospective method, which reflects the cumulative effect of initially applying the updates with an adjustment to retained earnings at the date of adoption. The Company adopted this standard using the modified retrospective approach with its first quarter ended November 17, 2018. Results for the 17 and 53 weeks ended August 31, 2019 were presented under ASU 2014-09, while prior period amounts were not adjusted and continue to be reported under the accounting standards in effect for the prior periods. The cumulative effect of the adoption of ASU 2014-09 did not have a material impact on the Company’s consolidated financial condition, results of operations, cash flows, business processes, controls or systems. Refer to “Note R – Revenue Recognition.”

In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory. ASU 2016-16 requires that an entity recognize the income tax consequences of an intra-entity transfer of assets other than inventory when the transfer occurs. The guidance must be applied using the modified retrospective approach. The Company adopted this standard with its first quarter ended November 17, 2018 and evaluated the effects from this adoption. The Company determined the provision of ASU 2016-16 did not have an impact on the Company’s consolidated financial statements.

Recently Adopted and Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements:

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which replaces the existing guidance in Accounting Standard Codification 840 (“ASC 840”), Leases and requires a two-fold approach for lessee accounting, under which a lessee will account for leases as finance leases or operating leases. For all leases with terms greater than 12 months, both lease classifications will result in the lessee recognizing a right-of-use asset (ROU) and a corresponding lease liability on its balance sheet, with differing methodology for income statement recognition. The amendment will be effective for the Company at the beginning of its fiscal 2020 year, and early adoption is permitted. The Company will adopt this standard beginning our first quarter ending November 23, 2019. The guidance is required to be adopted using the modified retrospective approach, which provides an entity the option to apply the guidance at the beginning of the earliest comparative period presented, or at the beginning of the period in which it is adopted. The Company has elected to apply the guidance at the beginning of the period in which it is adopted. The Company intends to utilize the transition practical expedients under which the Company will not be required to reassess (i) whether expired or existing contracts are or contain leases as defined by the new standard, (ii) the classification of such leases, and (iii) whether previously capitalized initial direct costs would qualify for capitalization under the new standard.

The Company established a cross-functional implementation team to implement the new standard and identify new processes and controls to ensure compliance with the new standard. The implementation team has implemented ASU 2016-02 compliant lease accounting software and completed its internal evaluation of existing contractual arrangements. The Company is finalizing changes to its business processes and controls to support the adoption of the new standard. The Company currently expects to record consolidated ROU assets and lease liabilities of approximately $2.5 billion to $2.8 billion on the date of adoption.

In June 2018, the FASB issued ASU 2018-07, Compensation – Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting. ASU 2018-07 aims to simplify the accounting for share-based payments to nonemployees by aligning it with the accounting for share-based payments to employees, with certain exceptions. The amendment will be effective for the Company at the beginning of its fiscal 2020 year, and early adoption is permitted. The Company will adopt this standard beginning our first quarter ending November 23, 2019. The Company does not expect the provisions of ASU 2018-07 to have a material impact on its consolidated financial statements.

In August 2018, the FASB issued ASU 2018-15, Intangibles – Goodwill and Other Internal Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The amendments in this update align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. ASU 2018-15 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted. The Company will adopt this standard beginning our first quarter ending November 21, 2020. The Company is currently evaluating the new guidance to determine the impact the adoption will have on the Company’s results of operations, cash flows and financial condition.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments which was subsequently amended in November 2018 through ASU 2018-19, Codification Improvements to Topic 326, Financial Instruments Credit Losses. ASU 2016-13 will require entities to estimate lifetime expected credit losses for trade and other receivables, net investments in leases, financial receivables, debt securities, and other instruments, which will result in earlier recognition of credit losses. Further, the new credit loss model will affect how entities estimate their allowance for loss receivables that are current with respect to their payment terms. ASU 2016-13 will be effective for the Company at the beginning of its fiscal 2021 year. The Company will adopt this standard beginning our first quarter ending November 21, 2020. The Company is currently evaluating the new guidance to determine the impact the adoption will have on the Company’s results of operations, cash flows, and financial condition.