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Significant Accounting Policies (Policies) | 12 Months Ended
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Apr. 30, 2019
Accounting Policies [Abstract] |
Principles of consolidation | Principles of consolidation The consolidated financial statements include the financial statements of Casey’s General Stores, Inc. and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.
Use of estimates | Use of estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Cash equivalents | Cash equivalents We consider all highly liquid investments with a maturity at purchase of three months or less to be cash equivalents. Included in cash equivalents are money market funds and credit card, debit card and electronic benefits transfer transactions that process within three days.
Inventories | Inventories Inventories, which consist of merchandise and fuel, are stated at the lower of cost or market. For fuel, cost is determined through the use of the first-in, first-out (FIFO) method. For merchandise inventories, cost is determined through the use of the last-in, first-out (LIFO) method. The excess of replacement cost over the stated LIFO value was $80,814 and $73,494 at April 30, 2019 and 2018, respectively. There were no material LIFO liquidations during the periods presented. Below is a summary of the inventory values at April 30, 2019 and 2018:
| Years ended April 30,
| 2019 |  | 2018
Fuel | $ | 83,204 |  |  | $ | 75,817 |
Merchandise | 189,836 |  |  | 165,851 |
Total inventory | $ | 273,040 |  |  | $ | 241,668 |
The Company often receives vendor allowances on the basis of quantitative contract terms that vary by product and vendor or directly on the basis of purchases made. Vendor allowances include rebates and other funds received from vendors to promote their products. Vendor rebates in the form of rack display allowances (RDAs) are funds that we receive from various vendors for allocating certain shelf space to carry their specific products or to introduce new products in our stores for a particular period of time. The RDAs are treated as a reduction in cost of goods sold and are recognized ratably over the period covered by the applicable rebate agreement. These funds do not represent reimbursements of specific, incremental, or identifiable costs incurred by us in selling the vendor’s products. Vendor rebates in the form of billbacks are treated as a reduction in cost of goods sold and are recognized at the time the rebate is earned per the contract. Reimbursements of an operating expense (e.g., advertising) are recorded as reductions of the related expense. The Company adopted ASU 2014-09 in the quarter ended July 31, 2018. As a result, revenue from sales of pizza that include a redeemable box top coupon are deferred until redemption for the portion of the sale that represents the estimated future redemption of the box top coupon. Gift card revenue is now recognized based on the estimated gift card breakage rate over the pro-rata usage of the card. Renewable Identification Numbers (RINs) are recorded as a reduction in cost of goods sold in the period when the Company commits to a price and agrees to sell all of the RINs earned during a specified period. The Company includes in cost of goods sold the costs incurred to acquire fuel and merchandise, including excise taxes, less vendor allowances and rebates and RINs. The Company does not record an asset on the balance sheet related to RINs that have not been validated and contracted. Warehousing costs are recorded within operating expenses on the income statement.
Goodwill | Goodwill Goodwill and intangible assets with indefinite lives are tested for impairment at least annually. The Company assesses impairment annually at year-end using a market based approach to establish fair value. All of the goodwill assigned to the individual stores is aggregated into a single reporting unit due to the similar economic characteristics of the stores.
Depreciation and amortization | Depreciation and amortization Depreciation of property and equipment and amortization of capital lease assets are computed principally by the straight-line method over the following estimated useful lives:
Buildings | 25-40 years
Machinery and equipment | 5-30 years
Leasehold interest in property and equipment | Lesser of term of lease or life of asset
Leasehold improvements | Lesser of term of lease or life of asset
The Company monitors stores and will accelerate depreciation if the expected life of the asset is reduced due to the expected remaining operation of the store or the Company’s plans. Construction in process is reported at cost and not subject to depreciation until placed in service.
Store closing and asset impairment | Store closings and asset impairment The Company writes down property and equipment of stores it is closing to estimated net realizable value at the time management commits to a plan to close such stores and begins active marketing of the stores. The Company bases the estimated net realizable value of property and equipment on its experience in utilizing and/or disposing of similar assets and on estimates provided by its own and/or third-party real estate experts. The Company monitors closed and underperforming stores for an indication that the carrying amount of assets may not be recoverable. If the sum of the expected future undiscounted cash flows is less than the carrying amount of the assets, an impairment loss is recognized to the extent carrying value of the assets exceeds their estimated fair value. Fair value is based on management’s estimate of the price that would be received to sell an asset in an orderly transaction between market participants. The estimate is derived from offers, actual sale or disposition of assets subsequent to year-end, and other indications of fair value, which are considered Level 3 inputs (See Note 3). In determining whether an asset is impaired, assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of the cash flows of other groups of assets, which for the Company is generally on a store-by-store basis.
Income taxes | Income taxes The Company uses the asset and liability method of accounting for income taxes. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The Company calculates its current and deferred tax provision based on estimates and assumptions that could differ from actual results reflected in income tax returns filed in subsequent years. Adjustments based on filed returns are recorded when identified.
Revenue recognition | Revenue recognition The Company recognizes retail sales of fuel, grocery & other merchandise, prepared food & fountain, and commissions on lottery, prepaid phone cards, and video rentals at the time of the sale to the customer. Sales taxes collected from customers and remitted to the government are recorded on a net basis in the consolidated financial statements.
Net income per common share | Net income per common share Basic earnings per share have been computed by dividing net income by the weighted average shares outstanding during each of the years. Unvested shares under equity awards are treated as common shares within the basic earnings per share calculation when an employee has met certain requirements in the award agreement. For example, if retirement provisions are satisfied which allow an employee to avoid forfeiture of the award upon a normal retirement from the Company, it is included in the basic earnings per share calculation. The calculation of diluted earnings per share treats stock options as potential common shares to the extent they are dilutive. The diluted earnings per share calculation does not take into effect any shares that have not met performance or market conditions as of the reporting period.
Asset retirement obligations | Asset retirement obligations The Company recognizes the estimated future cost to remove underground storage tanks over the estimated useful life of the storage tank. The Company records a discounted liability for the fair value of an asset retirement obligation with a corresponding increase to the carrying value of the related long-lived asset at the time an underground storage tank is installed. The Company amortizes the amount added to other assets and recognizes accretion expense in connection with the discounted liability over the remaining life of the tank. The estimates of the anticipated future costs for removal of an underground storage tank are based on our prior experience with removal. Because these estimates are subjective and are currently based on historical costs with adjustments for estimated future changes in the associated costs, we expect the dollar amount of these obligations to change as more information is obtained.
Self-insurance | Self-insurance The Company is primarily self-insured for employee healthcare, workers’ compensation, general liability, and automobile claims. The self-insurance claim liability for workers’ compensation, general liability, and automobile claims is determined actuarially at each year end based on claims filed and an estimate of claims incurred but not yet reported. Actuarial projections of the losses are employed due to the potential of variability in the liability estimates. Some factors affecting the uncertainty of claims include the development time frame, settlement patterns, litigation and adjudication direction, and medical treatment and cost trends. The liability is not discounted.
Environmental remediation liabilities | Environmental remediation liabilities The Company accrues for environmental remediation liabilities when it is probable a liability has been incurred and the amount of loss can be reasonably estimated.
Derivatives instruments | Derivative instruments There were no options or futures contracts as of or during the years ended April 30, 2019, 2018, or 2017. However, we do from time to time, participate in a forward buy of certain commodities, primarily cheese and coffee. These are not accounted for as derivatives under the normal purchase and normal sale exclusions within the applicable guidance.
Stock-based compensation | Stock-based compensation Stock-based compensation is recorded based upon the fair value of the award on the grant date. The cost of the award is recognized ratably in the statement of income over the vesting period of the award, adjusted for certain retirement provisions. Additionally, certain awards include performance and market conditions. The performance-based awards are based on the achievement of a three year average return on invested capital (ROIC). For these awards, stock-based compensation expense is estimated based on the probable outcome of shares to be awarded adjusted as necessary at each reporting period. The market-based awards are achieved based on our relative performance to a pre-determined peer group. The fair value of these awards is determined using a Monte Carlo simulation as of the date of the grant. For market-based awards, the stock-based compensation expense will not be adjusted should the target awards vary from actual awards.
Segment reporting | Segment reporting As of April 30, 2019, we operated 2,146 stores in 16 states. Our convenience stores offer a broad selection of merchandise, fuel and other products and services designed to appeal to the convenience needs of our customers. We manage the business on the basis of one operating segment and therefore, have only one reportable segment. Our stores sell similar products and services, use similar processes to sell those products and services, and sell their products and services to similar classes of customers. We make specific disclosures concerning the three broad merchandise categories of fuel, grocery & other merchandise, and prepared food & fountain because it makes it easier for us to discuss trends and operational initiatives within our business and industry. Although we can separate revenues and cost of goods sold within these categories (and further sub-categories), the operating expenses associated with operating a store that sells these products are not separable by these three categories.
Recent accounting pronouncements | Recent accounting pronouncements In May 2014, the FASB issued Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers (Topic 606). We adopted the standard on May 1, 2018 using the modified retrospective approach. The Company adopted two changes that affect the timing of recognition of revenues related to gift card breakage income and the redemption of coupon box tops attached to our pizza boxes. The impact related to gift cards was $879, net of $321 of deferred taxes and was an increase to shareholders' equity with a reduction in deferred income. The impact related to box tops was $5,019, net of$1,816 of deferred taxes and was a reduction in shareholders' equity, with an increase in deferred income. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). This update seeks to increase the transparency and comparability among entities by requiring public entities to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements. To satisfy the standard’s objective, a lessee will recognize a right-of-use asset representing its right to use the underlying asset for the lease term and a lease liability for the obligation to make lease payments. Both the right-of-use asset and lease liability will initially be measured at the present value of the lease payments, with subsequent measurement dependent on the classification of the lease as either a finance or an operating lease. For leases with a term of twelve months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. In July 2018, the FASB issued ASU 2018-10, Leases (Topic 842) - Codification Improvements which contains several FASB Codification improvements for ASC Topic 842, including several implementation issues and ASU 2018-11, "Leases (Topic 842) - Targeted Improvements" which provides entities with an additional transition method for implementing ASC Topic 842. Entities have the option to apply the new standard at the adoption date, recognizing a cumulative-effect adjustment to the opening balance of retained earnings along with the modified retrospective approach previously identified, both of which include a number of practical expedients that companies may elect to apply. The Company has elected to apply the practical expedient listed under ASC 842-10-65-1(f) which allows the Company to not reassess the lease classification for any expired or existing leases. As a result, upon adoption the Company will not adjust the classification of any lease in existence at May 1, 2019, and instead will continue to treat those within the guidance of ASC 840. The Company will assess all new or modified leases subsequent to May 1, 2019 under ASC 842. We have adopted this guidance as of May 1, 2019, and the effect of the adoption was not material to the financial statements. In October 2016, the FASB issued ASU No. 2016-16, Intra-Entity Transfers of Assets Other than Inventory. We adopted the standard in the quarter ended July 31, 2018. There was no material impact to the Company for the adoption of this standard. In January 2017, the FASB issued ASU 2017-01, Business Combinations, Clarifying the Definition of a Business. The standard clarifies the definition of a business and adds guidance to assist entities in the determination of whether an acquisition (or disposal) represents assets or a business. The guidance requires the Company to utilize various criteria to evaluate whether or not an acquisition is a business. First, if substantially all of the fair value of the assets acquired is concentrated in a single asset or a group of similar identifiable assets, the acquired assets do not represent a business. If that is not the case, the update provides further guidance to evaluate if the acquisition represents a business focused on the nature and substance of the inputs and process acquired. The standard is generally expected to reduce the number of business combinations, which may impact the allocation of purchase consideration in future acquisitions. Where it is determined that an acquisition is not a business combination, there would be no resulting goodwill recorded. The Company prospectively adopted this guidance for all future acquisitions in the first quarter of fiscal 2019. In August 2018, the FASB issued ASU 2018-15, Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. This standard provides guidance on accounting for costs of implementation activities performed in a cloud computing arrangement that is a service contract. The amendments in the 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 and hosting arrangements that include an internal-use software license. The Company early adopted this guidance retrospectively, in the first quarter of fiscal 2019. The adoption did not have a material impact on our consolidated financial statements.

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