Casey's General Stores (CASY) 10-K 26 Jun 20 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
	Apr. 30, 2020	Jun. 09, 2020	Oct. 31, 2019
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Apr. 30, 2020
Document Transition Report	false
Entity File Number	001-34700
Entity Registrant Name	CASEY’S GENERAL STORES, INC.
Entity Incorporation, State or Country Code	IA
Entity Tax Identification Number	42-0935283
Entity Address, Address Line One	ONE SE CONVENIENCE BLVD
Entity Address, City or Town	Ankeny
Entity Address, State or Province	IA
Entity Address, Postal Zip Code	50021
City Area Code	515
Local Phone Number	965-6100
Title of 12(b) Security	Common Stock, no par value per share
Trading Symbol	CASY
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth	false
Entity Shell Company	false
Entity Public Float			$ 6.3
Entity Common Stock, Shares Outstanding		36,849,324
Entity Central Index Key	0000726958
Amendment Flag	false
Current Fiscal Year End Date	--04-30
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 30, 2020	Apr. 30, 2019
Current assets
Cash and cash equivalents	$ 78,275	$ 63,296
Receivables	48,500	37,856
Inventories	236,007	273,040
Prepaid expenses	9,801	7,493
Income taxes receivable	14,667	28,895
Total current assets	387,250	410,580
Property and equipment, at cost
Land	872,151	792,601
Buildings and leasehold improvements	1,969,585	1,770,695
Machinery and equipment	2,369,361	2,236,123
Finance lease right-of-use assets	24,780	25,323
Construction in process	125,632	124,613
Property and equipment, at cost	5,361,509	4,949,355
Less accumulated depreciation and amortization	2,037,708	1,826,936
Net property and equipment	3,323,801	3,122,419
Other assets, net of amortization	71,766	41,154
Goodwill	161,075	157,223
Total assets	3,943,892	3,731,376
Current liabilities
Lines of credit	120,000	75,000
Current maturities of long-term debt	570,280	17,205
Accounts payable	184,800	335,240
Accrued expenses
Wages and related taxes	34,039	39,950
Property taxes	36,348	32,931
Insurance accruals	22,097	21,671
Other	95,864	68,935
Total current liabilities	1,063,428	590,932
Long-term debt and finance lease obligations, net of current maturities	714,502	1,283,275
Deferred income taxes	435,598	385,788
Deferred compensation	13,604	15,881
Insurance accruals, net of current portion	22,862	22,663
Other long-term liabilities	50,693	24,068
Total liabilities	2,300,687	2,322,607
Commitments and contingencies
Shareholders’ equity
Preferred stock, no par value, none issued	0	0
Common stock, no par value, 36,806,325 and 36,664,521 shares issued and outstanding at April 30, 2020 and 2019, respectively	33,286	15,600
Retained earnings	1,609,919	1,393,169
Total shareholders’ equity	1,643,205	1,408,769
Total liabilities and shareholders’ equity	$ 3,943,892	$ 3,731,376

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - shares	Apr. 30, 2020	Apr. 30, 2019
Statement of Financial Position [Abstract]
Preferred stock, shares issued	0	0
Common stock, shares issued	36,806,325	36,664,521
Common stock, shares outstanding	36,806,325	36,664,521

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands		12 Months Ended
		Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Income Statement [Abstract]
Total revenue		$ 9,175,296	$ 9,352,910	$ 8,391,124
Cost of goods sold (exclusive of depreciation and amortization, shown separately below) (a)	[1]	7,030,612	7,398,186	6,621,731
Operating expenses		1,498,043	1,391,279	1,283,046
Depreciation and amortization		251,174	244,387	220,970
Interest, net		53,419	55,656	50,940
Income before income taxes		342,048	263,402	214,437
Federal and state income taxes		78,202	59,516	(103,466)
Net income		$ 263,846	$ 203,886	$ 317,903
Net income per common share
Basic (in Dollars per share)		$ 7.14	$ 5.55	$ 8.41
Diluted (in Dollars per share)		7.10	5.51	8.34
Dividends declared (in Dollars per share)		$ 1.28	$ 1.16	$ 1.04
Excise taxes collected		$ 1,063,000	$ 988,000	$ 919,000
[1]	Includes excise taxes of approximately $1,063,000, $988,000 and $919,000

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings
Beginning Balance (shares) at Apr. 30, 2017		38,765,821
Beginning Balance at Apr. 30, 2017	$ 1,190,620	$ 40,074	$ 1,150,546
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	317,903		317,903
Dividends declared	(39,060)		(39,060)
Exercise of stock options (shares)		40,377
Exercise of stock options	1,377	$ 1,377
Repurchase of common stock (shares)		(1,997,800)
Repurchase of common stock	(215,434)	$ (57,186)	(158,248)
Stock-based compensation (shares)		65,924
Stock-based compensation	15,735	$ 15,735
Ending Balance (shares) at Apr. 30, 2018		36,874,322
Ending Balance at Apr. 30, 2018	1,271,141	$ 0	1,271,141
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	203,886		203,886
Dividends declared	(42,471)		(42,471)
Exercise of stock options (shares)		71,546
Exercise of stock options	2,290	$ 2,290
Repurchase of common stock (shares)		(352,592)
Repurchase of common stock	(35,247)		(35,247)
Stock-based compensation (shares)		71,245
Stock-based compensation	$ 13,310	$ 13,310
Ending Balance (shares) at Apr. 30, 2019	36,664,521	36,664,521
Ending Balance at Apr. 30, 2019	$ 1,408,769	$ 15,600	1,393,169
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	263,846
Dividends declared	(47,096)		(47,096)
Exercise of stock options (shares)		66,638
Exercise of stock options	2,958	$ 2,958
Stock-based compensation (shares)		75,166
Stock-based compensation	$ 14,728	$ 14,728
Ending Balance (shares) at Apr. 30, 2020	36,806,325	36,806,325
Ending Balance at Apr. 30, 2020	$ 1,643,205	$ 33,286	$ 1,609,919

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Retained Earnings
Payment of dividends per share (in Dollars per share)	$ 1.28	$ 1.16	$ 1.04

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Cash flows from operating activities
Net income	$ 263,846	$ 203,886	$ 317,903
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	251,174	244,387	220,970
Stock-based compensation	18,129	16,410	18,800
Loss on disposal of assets and impairment charges	3,495	1,384	2,281
Deferred income taxes	49,810	45,337	(98,178)
Changes in assets and liabilities:
Receivables	(10,644)	7,189	(1,801)
Inventories	37,713	(29,648)	(38,406)
Prepaid expenses	(2,308)	(1,727)	3,413
Accounts payable	(140,151)	12,451	14,751
Accrued expenses	26,400	30,927	15,967
Income taxes	15,783	22,545	(30,053)
Other, net	(8,933)	(22,527)	(5,850)
Net cash provided by operating activities	504,314	530,614	419,797
Cash flows from investing activities
Purchase of property and equipment	(438,977)	(394,699)	(577,421)
Payments for acquisitions of businesses, net of cash acquired	(32,706)	(68,200)	(37,160)
Proceeds from sales of property and equipment	5,041	5,069	5,246
Net cash used in investing activities	(466,642)	(457,830)	(609,335)
Cash flows from financing activities
Proceeds from long-term debt	0	0	400,000
Repayments of long-term debt	(17,476)	(16,000)	(15,688)
Net borrowings of short-term debt	45,000	35,400	38,700
Proceeds from exercise of stock options	2,958	2,290	1,377
Payments of cash dividends	(45,951)	(41,430)	(38,780)
Repurchase of common stock	0	(37,479)	(214,683)
Tax withholdings on employee share-based awards	(7,224)	(5,948)	(4,426)
Net cash (used in) provided by financing activities	(22,693)	(63,167)	166,500
Net increase (decrease) in cash and cash equivalents	14,979	9,617	(23,038)
Cash and cash equivalents at beginning of year	63,296	53,679	76,717
Cash and cash equivalents at end of year	78,275	63,296	53,679
SUPPLEMENTAL DISCLOSURES OF CASH FLOWS INFORMATION
Cash paid during the year for interest, net of amount capitalized	54,277	56,306	48,757
Cash paid (received) for income taxes, net	9,364	(11,433)	24,274
Noncash investing and financing activities
Noncash additions from adoption of ASC 842	2,840
Purchased property and equipment in accounts payable	5,328	15,616	12,014
Shares repurchased in accounts payable	$ 0	$ 0	$ 2,232

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Apr. 30, 2020
Accounting Policies [Abstract]
Significant Accounting Policies	SIGNIFICANT ACCOUNTING POLICIES Operations: Casey’s General Stores, Inc. and its subsidiaries (the Company/Casey’s) operate 2,207 convenience stores in 16 Midwest states. The stores are located primarily in smaller communities, many with populations of less than 5,000 . Retail revenue in 2020 by category are as follows: 60% fuel, 28% grocery and other merchandise, and 12% prepared food and fountain. The Company’s products are readily available, and the Company is generally not dependent on a single supplier or only a few suppliers. 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. Certain amounts in prior year have been reclassified to conform to current year presentation. 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: 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, 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 $87,546 and $80,814 at April 30, 2020 and 2019 , respectively. There were no material LIFO liquidations during the periods presented. Below is a summary of the inventory values at April 30, 2020 and 2019 : Years ended April 30, 2020 2019 Fuel $ 33,695 $ 83,204 Merchandise 202,312 189,836 Total inventory $ 236,007 $ 273,040 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, including billbacks, are treated as a reduction in cost of goods sold and are recognized primarily based on the purchase of product or shipment of product from the warehouse to the store, or sale of product to our guests. These are recognized in the period earned based on the applicable rebate agreement. Reimbursements of an operating expense (e.g., advertising) are recorded as reductions of the related expense. 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 consolidated statements of income. Capitalized software implementation costs: The Company capitalizes expenditures related to the implementation of software as incurred. These costs are expensed on a straight-line basis within operating expenses over the contractual life of the contract with the related software provider. The useful lives utilized for capitalized software implementation costs range from 3 - 13 years. As of April 30, 2020 and April 30, 2019 , the Company had recognized $ 38,593 and $27,873 of capitalized software implementation costs, respectively. The outstanding balance is recognized in other assets on the consolidated balance sheets. 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. As of April 30, 2020 and 2019 , there was $161,075 and $157,223 of goodwill, respectively. Management’s analysis of recoverability completed as of the fiscal year-end indicated no evidence of impairment for the years ended April 30, 2020 , 2019 , and 2018 . Depreciation and amortization: Depreciation of property and equipment are computed using the straight-line method over the following estimated useful lives: Buildings 25-40 years Machinery and equipment 5-40 years Finance lease right-of-use assets 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 the related asset is placed in service. 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, as well as 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. The Company incurred impairment charges of $1,177 in fiscal 2020 , $1,167 in fiscal 2019 , and $507 in fiscal 2018 . Impairment charges are a component of operating expenses. Excise taxes: Excise taxes approximating $1,063,000 , $988,000 , and $919,000 on retail fuel sales are included in total revenue and cost of goods sold for fiscal 2020 , 2019 , and 2018 , respectively. 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: The Company recognizes retail sales of fuel, grocery and other merchandise, prepared food and fountain and other revenue at the time of the sale to the guest. Sales taxes collected from guests and remitted to the government are recorded on a net basis in the consolidated financial statements. A portion of revenue from sales that include a redeemable box top coupon or points under our Casey’s Rewards program is deferred. The deferred portion of the sale represents the value of the estimated future redemption of the box top coupon or points. The amounts related to redeemable box top coupons and points are deferred until their redemption or expiration. Revenue related to the box top coupons and points issued is expected to be recognized less than one year from the original sale to the guest. As of April 30, 2020 and April 30, 2019 , the Company recognized a contract liability of $ 11,180 and $ 6,931 , respectively, related to the outstanding box top coupons and Casey's Rewards points, which is included in other accrued expenses on the consolidated balance sheets. Gift card related revenue is recognized as the gift cards are used by the guest. Gift card breakage revenue is recognized based on the estimated gift card breakage rate over the pro rata usage of the card. 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 a team member has met certain requirements in the award agreement. For example, if retirement provisions are satisfied which allow a team member 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 and unvested restricted stock units with time-based restrictions 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: 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 a long-lived asset at the time an underground storage tank is installed. The Company amortizes the amount added to property and equipment on a straight-line basis 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. There were no material changes in our asset retirement obligation estimates during fiscal 2020 . The net amount recorded as an increase to the related underground storage tank asset related to asset retirement obligations was $13,416 and $11,793 at April 30, 2020 and 2019 , respectively, and is recorded in property and equipment, net of depreciation. The discounted liability was $22,658 and $18,058 at April 30, 2020 and 2019 , respectively, and is recorded in other long-term liabilities. Self-insurance: The Company is primarily self-insured for team member 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 the claim liability include the loss development factors, which includes the development time frame and settlement patterns, and expected loss rates, which includes litigation and adjudication direction, and medical treatment and cost trends. The liability is not discounted. The balance of our self-insurance reserves was $44,959 and $44,334 for the years ended April 30, 2020 and 2019 , respectively. 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. Derivative instruments: There were no options or futures contracts as of or during the years ended April 30, 2020 , 2019 , or 2018 . However, we do from time to time, participate in a forward buy of certain commodities. These are not accounted for as derivatives under the normal purchase and sale exclusions within the applicable accounting guidance. 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 consolidated statements of income over the vesting period of the award, adjusted for certain retirement provisions. Additionally, certain awards include performance and market conditions. The majority of 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: As of April 30, 2020 , we operated 2,207 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 guests. 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 guests. We make specific disclosures concerning the three broad merchandise categories of fuel, grocery and other merchandise, and prepared food and 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: 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. Under the cumulative-effect adjustment comparative periods would not be restated. Under the modified retrospective approach leases are recognized and measured under the noted guidance at the beginning of the earliest period presented. The new standard is effective for public companies for annual periods beginning after December 15, 2018, and interim periods within those years, with early adoption permitted. We adopted this guidance as of May 1, 2019 using the modified retrospective approach and elected the cumulative-effect adjustment practical expedient. As a result of the transition method selected, the Company did not restate previously reported comparable periods. Please refer to note 7 for additional information regarding the Company’s adoption of ASC 842. In October 2016, the FASB issued ASU No. 2016-16, Intra-Entity Transfers of Assets Other than Inventory . We adopted this standard in the quarter ended July 31, 2018, which resulted in no material impact to the Company. 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. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes . The standard includes changes that eliminate certain exceptions related to the approach for intraperiod tax allocation and the methodology for calculating income taxes in an interim period. It also simplifies aspects of the accounting for franchise taxes, certain transactions that result in a step-up in the tax basis of goodwill, and enacted changes in tax laws or rates. The Company is required to adopt this guidance in the first quarter of its fiscal 2022, with early adoption permitted. The Company is currently evaluating the impact the standard has on the consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848) - Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The standard included optional guidance for a limited period of time to help ease the burden in accounting for the effects of reference rate reform. The new standard is effective for all entities through December 31, 2022. The Company does not expect the adoption of this standard to have a material impact on our consolidated financial statements.

Acquisitions

Acquisitions	12 Months Ended
	Apr. 30, 2020
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS During the year ended April 30, 2020 , the Company acquired 18 stores through a variety of multi-store and single store transactions with several unrelated third parties. Of the 18 stores acquired, 11 were re-opened as a Casey's store during the 2020 fiscal year, and seven will be opened during the 2021 fiscal year. The majority of the acquisitions meet the criteria to be considered business combinations. The purchase price of the stores were valued using a discounted cash flow model on a location by location basis. The acquisitions were recorded in the financial statements by allocating the purchase price to the assets acquired, including intangible assets and liabilities assumed, based on their estimated fair values at the acquisition date as determined by third party appraisals or internal estimates. The excess of the cost of the acquisition over the net amounts assigned to the fair value of the assets acquired and the liabilities assumed is recorded as goodwill if the acquisition is considered to be a business combination. All of the goodwill associated with these transactions will be deductible for income tax purposes over 15 years . Allocation of the purchase price for the transactions in aggregate for the year ended April 30, 2020 is as follows (in thousands): Assets acquired: Inventories $ 680 Property and equipment 28,384 Total assets 29,064 Liabilities assumed: Accrued expenses 210 Total liabilities 210 Net tangible assets acquired 28,854 Goodwill 3,852 Total consideration paid $ 32,706 The following unaudited pro forma information presents a summary of our consolidated results of operations as if the transactions referenced above occurred at the beginning of the first fiscal year of the periods presented (amounts in thousands, except per share data): Years Ended April 30, 2020 2019 Total revenue $ 9,217,749 $ 9,421,773 Net income $ 265,233 $ 205,987 Net income per common share Basic $ 7.18 $ 5.61 Diluted $ 7.13 $ 5.57

Fair Value of Financial Instrum

Fair Value of Financial Instruments and Long Term Debt	12 Months Ended
	Apr. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments and Long-Term Debt	FAIR VALUE OF FINANCIAL INSTRUMENTS AND LONG-TERM DEBT A summary of the fair value of the Company’s financial instruments follows. Cash and cash equivalents, receivables, and accounts payable: The carrying amount approximates fair value due to the short maturity of these instruments or the recent purchase of the instruments at current rates of interest. Long-term debt: The fair value of the Company’s long-term debt (including current maturities) and finance lease obligations is estimated based on the current rates offered to the Company for debt of the same or similar issues. The fair value of the Company’s long-term debt and capital lease obligations was approximately $1,341,000 and $1,272,000 , respectively, at April 30, 2020 and 2019 . The carrying amount of the Company’s long-term debt and finance lease obligations by issuance is as follows: As of April 30, 2020 2019 Finance lease liabilities (Note 7) $ 16,746 $ 16,480 5.72% Senior notes due in 14 installments beginning September 30, 2012 and ending March 30, 2020 — 15,000 5.22% Senior notes due August 9, 2020 (1) 569,000 569,000 3.67% Senior notes (Series A) due in 7 installments beginning June 17, 2022, and ending June 15, 2028 150,000 150,000 3.75% Senior notes (Series B) due in 7 installments beginning December 17, 2022 and ending December 18, 2028 50,000 50,000 3.65% Senior notes (Series C) due in 7 installments beginning May 2, 2025 and ending May 2, 2031 50,000 50,000 3.72% Senior notes (Series D) due in 7 installments beginning October 28, 2025 and ending October 28, 2031 50,000 50,000 3.51% Senior notes (Series E) due June 13, 2025 150,000 150,000 3.77% Senior notes (Series F) due August 22, 2028 250,000 250,000 1,285,746 1,300,480 Less current maturities (2) 571,244 17,205 $ 714,502 $ 1,283,275 (1) The Company is in the process of refinancing these Senior notes, and expects to execute the applicable note purchase agreement for the refinancing in the near future shortly after the report date. (2) Long-term debt is presented gross in the table above, but net of unamortized debt issuance costs of $964 and $1,171 on the consolidated balance sheets for the years ended April 30, 2020 and 2019 , respectively. In January 2019, the Company entered into the Credit Facility that provides for a $300 million unsecured revolving line of credit, a $30 million sublimit for letters of credit and a $30 million sublimit for swingline loans. The Credit Facility contains an expansion option permitting the Company to request an increase of the Credit Facility from time to time up to an aggregate additional $150 million from the lenders or other financial institutions acceptable to the Company and the Administrative Agent, upon the satisfaction of certain conditions, including the consent of the lenders whose commitments would increase. The maturity date is January 11, 2024. Amounts borrowed under the Credit Facility bear interest at variable rates based upon, at the Company's option, either (a) LIBOR plus an applicable margin or (b) an alternate base rate. The Credit Facility also carries a facility fee between 0.2% and 0.4% per annum based on the Company's consolidated leverage ratio as defined in the credit agreement. The Company had $120,000 and 75,000 outstanding under the line of credit at April 30, 2020 and 2019 , respectively. Concurrently with this credit agreement, the Company also reduced the Bank Line from $150,000 to $25,000 . The Bank Line bears interest at a variable rate subject to change from time to time based on changes in an independent index referred to in the Bank Line as the Federal Funds Offered Rate (the “Index”). The interest rate to be applied to the unpaid principal balance of the Bank Line was at a rate of 1.0% over the Index. There was $ 0 outstanding at April 30, 2020 and 2019 . The line of credit is due upon demand. Interest expense is net of interest income of $860 , $595 , and $1,583 for the years ended April 30, 2020 , 2019 , and 2018 , respectively. Interest expense is also net of interest capitalized of $5,258 , $3,057 , and $2,260 during the years ended April 30, 2020 , 2019 , and 2018 , respectively. The agreements relating to the above long-term debt contain certain operating and financial covenants. At April 30, 2020 , the Company was in compliance with all such operating and financial covenants. Listed below are the aggregate maturities of long-term debt, including finance lease obligations, for the 5 years commencing May 1, 2020 and thereafter: Years ended April 30, Finance Leases Senior Notes Total 2021 $ 2,244 $ 569,000 $ 571,244 2022 2,354 — 2,354 2023 2,484 20,000 22,484 2024 2,060 32,000 34,060 2025 734 32,000 32,734 Thereafter 6,870 616,000 622,870 $ 16,746 $ 1,269,000 $ 1,285,746

Preferred and Common Stock

Preferred and Common Stock	12 Months Ended
	Apr. 30, 2020
Share-based Payment Arrangement [Abstract]
Preferred And Common Stock	PREFERRED AND COMMON STOCK Preferred stock: The Company has 1,000,000 authorized shares of preferred stock, of which 250,000 shares have been designated as Series A Serial Preferred Stock. No shares have been issued. Common stock: The Company currently has 120,000,000 authorized shares of common stock. Stock incentive plans: The 2018 Stock Incentive Plan (the “2018 Plan”), was approved by the Board in June 2018 and approved by the Company's shareholders on September 5, 2018 ("the "2018 Plan Effective Date"). The 2018 Plan replaced the 2009 Stock Incentive Plan (the "2009 Plan") under which no new awards are allowed to be granted as of the 2018 Plan Effective Date. Awards under the 2018 Plan may take the form of stock options, stock appreciation rights, restricted stock, restricted stock units and other equity-based and equity-related awards. Each share issued pursuant to a stock option and each share with respect to which a stock-settled stock appreciation right is exercised (regardless of the number of shares actually delivered) is counted as one share against the maximum limit under the 2018 Plan, and each share issued pursuant to an award of restricted stock or restricted stock units is counted as two shares against the maximum limit. Restricted stock is transferred immediately upon grant (and may be subject to a holding period), whereas restricted stock units have a vesting period that must expire, and in some cases performance or market conditions that must be satisfied before the stock is transferred. There were 2,618,194 shares available for grant at April 30, 2020 under the 2018 Plan. We account for stock-based compensation by estimating the grant date fair value of stock options using the Black Scholes model, and the fair value of time-based and performance-based restricted stock unit awards using the closing price of our common stock. For market based awards, we use a "Monte Carlo" approach to estimate the value of the awards, which simulates the prices of the Company’s and each member of the performance peer groups' common stock price at the end of the relevant performance period, taking into account volatility and the specifics surrounding each total shareholder return metric under the relevant plan. We recognize these amounts as an operating expense in our consolidated statements of income ratably over the requisite service period using the straight-line method, as adjusted for certain retirement provisions, and updated estimates of shares to be issued under performance-based awards. All awards have been granted at no cost to the grantee and/or non-employee member of the Board. The following table summarizes the equity-related grants made during the three-year period ended April 30, 2020 : Date of Grant Type of Grant Shares Granted Recipients Vesting Date Fair Value at Grant Date June 1, 2017 Restricted Stock Units 63,699 Key Employees June 1, 2020 $7,388 July 14, 2017 Restricted Stock Units (1) 61,126 Officers June 15, 2020 $6,912 September 28, 2017 Restricted Stock 8,344 Non-Employee Board Members Immediate $920 March 29, 2018 Restricted Stock Units 2,150 Non-Employee Board Members September 21, 2018 $236 May 24, 2018 Restricted Stock Units 88,846 Key Employees May 24, 2021 $8,593 June 8, 2018 Restricted Stock Units (1) 75,402 Officers June 8, 2021 $7,571 September 5, 2018 Restricted Stock Units 7,984 Non-Employee Board Members 2019 Annual Shareholders' Meeting Date $920 June 4, 2019 Restricted Stock Units 75,959 Key Employees June 4, 2022 $9,886 June 4, 2019 Restricted Stock Units (1) 59,579 Officers June 4, 2022 $9,097 June 24, 2019 Restricted Stock Units (2) 32,786 CEO Various (2) $5,700 September 4, 2019 Restricted Stock Units 5,504 Non-Employee Board Members 2020 Annual Shareholders' Meeting Date $919 December 23, 2019 Restricted Stock Units (3) 5,000 CEO Various (3) $788 Various (4) Restricted Stock Units (4) 8,444 Officers Various (4) $1,368 Various (5) Restricted Stock Units (5) 1,763 Officers Various (5) $354 (1) This grant of restricted stock units includes time-based, performance-based and market-based awards. The performance-based awards included in the figure above represent a “target” amount; the final amount earned is based on the satisfaction of certain performance measures over a three -year performance period and will range from 0% to 200% of the “target". The market-based awards incorporate market conditions in determining fair value as of the grant date, and will also range from 0% to 200% of the "target". Total market-based expense of approximately $ 2.3 million for the 2017 grant, $ 2.6 million for the 2018 grant, and $3.1 million for the 2019 grant will be recognized on a straight-line basis over the vesting period, subject to acceleration for retirement provisions. (2) This grant of restricted stock units is comprised of time-based awards that vest ratably on each June 23, 2020 through 2022, along with a market-based award vesting June 23, 2022. The market-based award incorporates market conditions in determining fair value on the grant date and will range from 0% to 200% of the target. Total market-based expense of approximately $1.8 million will be recognized on a straight-line basis over the vesting period. (3) This grant of restricted stock units is comprised of performance-based awards which are calculated based upon targets achieved over performance periods from January 1, 2020 to December 31, 2020. If the performance targets are met, the units vest ratably on each January 15, 2021 through 2023. (4) These grants of restricted stock units were issued to various officers throughout the fiscal year. The grants were comprised of time-based awards and vest in accordance with the agreements, ranging from January 2021 to January 2023. (5) These grants of restricted stock units were issued to various officers throughout the fiscal year. The grants includes time-based, performance-based and market-based awards. The performance-based awards included in the figure above represent a “target” amount; the final amount earned is based on the satisfaction of certain performance measures over a three -year performance period and will range from 0% to 200% of the “target". The market-based awards incorporate market conditions in determining fair value as of the grant date, and will also range from 0% to 200% of the "target". Total market-based expense of approximately $177 will be recognized on a straight-line basis over the vesting period. At April 30, 2020 , stock options for 43,189 shares (which expire on June 23, 2021) were outstanding. All stock option shares issued are previously unissued authorized shares. Information concerning the issuance of stock options under the 2009 Plan is presented in the following table (no stock option awards have been granted under the 2018 Plan): Number of option shares Weighted average option exercise price Outstanding at April 30, 2017 222,050 $ 38.51 Exercised (40,377 ) 34.11 Outstanding at April 30, 2018 181,673 $ 39.48 Exercised (71,546 ) 32.02 Forfeited (300 ) 25.26 Outstanding at April 30, 2019 109,827 $ 44.39 Exercised (66,638 ) 44.39 Outstanding at April 30, 2020 43,189 $ 44.39 At April 30, 2020 , all outstanding options had an aggregate intrinsic value of $4,622 and a remaining contractual life of 1.17 years. The weighted average exercise price for all remaining outstanding options is $44.39 . All options are vested as of April 30, 2020 . The aggregate intrinsic value for the total of all options exercised during the year ended April 30, 2020 was $7,412 . Information concerning the issuance of restricted stock units under the 2018 Plan and the 2009 Plan is presented in the following table: Unvested at April 30, 2017 303,400 Granted 126,980 Vested (88,700 ) Forfeited (2,699 ) Unvested at April 30, 2018 338,981 Granted 172,232 Vested (104,166 ) Forfeited (10,530 ) Performance Award Adjustments (7,717 ) Unvested at April 30, 2019 388,800 Granted 189,035 Vested (108,484 ) Forfeited (25,146 ) Performance Award Adjustments 29,594 Unvested at April 30, 2020 473,799 Total compensation costs recorded for employees and non-employee board members for the stock options, restricted stock, and restricted stock unit awards for the years ended April 30, 2020 , 2019 and 2018 were $18,129 , $16,410 , and $18,800 , respectively. As of April 30, 2020 , there was $17,022 of total unrecognized compensation costs related to the 2018 Plan and 2009 Plan for costs related to restricted stock units which are expected to be recognized ratably through fiscal 2022. During the fourth quarter of the fiscal year ended April 30, 2017, the Company began a share repurchase program, wherein the Company was authorized to repurchase up to an aggregate of $300 million of the Company's outstanding common stock. The share repurchase authorization was valid for a period of two years . From its inception on March 9, 2017, through May 2018, the company completed the $300 million authorization by repurchasing 2,794,192 shares of its common stock. In March 2018, the Company announced a second share repurchase program with an aggregate $300 million share repurchase program. The share repurchase authorization was valid for a period of two years . On March 6, 2020, the authorization was extended through the end of the Company’s 2022 fiscal year. The timing and number of repurchase transactions under the program depends on a variety of factors including, but not limited to, market conditions, corporate considerations, business opportunities, debt agreements, and regulatory requirements. The program can be suspended or discontinued at any time. No repurchases were made on that program in fiscal 2020 .

Net Income Per Common Share

Net Income Per Common Share	12 Months Ended
	Apr. 30, 2020
Earnings Per Share [Abstract]
Net Income Per Common Share	NET INCOME PER COMMON SHARE Computations for basic and diluted earnings per common share are presented below: Years ended April 30, 2020 2019 2018 Basic Net income $ 263,846 $ 203,886 $ 317,903 Weighted average shares outstanding-basic 36,956,115 36,709,940 37,778,304 Basic earnings per common share $ 7.14 $ 5.55 $ 8.41 Diluted Net income $ 263,846 $ 203,886 $ 317,903 Weighted-average shares outstanding-basic 36,956,115 36,709,940 37,778,304 Plus effect of stock options and restricted stock units 229,713 265,447 353,795 Weighted-average shares outstanding-diluted 37,185,828 36,975,387 38,132,099 Diluted earnings per common share $ 7.10 $ 5.51 $ 8.34 There were no options considered antidilutive; therefore, all options were included in the computation of dilutive earnings per share for fiscal 2020 , 2019 , and fiscal 2018 , respectively.

Income Taxes

Income Taxes	12 Months Ended
	Apr. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Income tax expense (benefit) attributable to earnings consisted of the following components: Years ended April 30, 2020 2019 2018 Current tax expense (benefit): Federal $ 22,182 $ 10,326 (7,057 ) State 6,210 3,853 1,769 28,392 14,179 (5,288 ) Deferred tax expense (benefit) 49,810 45,337 (98,178 ) Total income tax expense (benefit) $ 78,202 $ 59,516 (103,466 ) The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities were as follows: As of April 30, 2020 2019 Deferred tax assets: Accrued liabilities and reserves $ 15,953 $ 11,705 Property and equipment depreciation 27,512 24,661 Workers compensation 8,303 8,277 Deferred compensation 3,781 3,827 Equity compensation 7,083 6,727 State net operating losses & tax credits 424 775 Other 1,335 1,033 Total gross deferred tax assets 64,391 57,005 Less valuation allowance 47 47 Total net deferred tax assets 64,344 56,958 Deferred tax liabilities: Property and equipment depreciation (474,829 ) (420,710 ) Goodwill (24,348 ) (21,560 ) Other (765 ) (476 ) Total gross deferred tax liabilities (499,942 ) (442,746 ) Net deferred tax liability $ (435,598 ) (385,788 ) At April 30, 2020 , the Company had net operating loss carryforwards for state income tax purposes of approximately $97,144 , which are available to offset future state taxable income. The state net operating loss carryforwards begin to expire in 2021 . The valuation allowance for state net operating loss deferred tax assets as of April 30, 2020 and 2019 was $47 . In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected taxable income, and tax planning strategies in making this assessment. Total reported tax expense applicable to the Company’s continuing operations varies from the tax that would have resulted from applying the statutory U.S. federal income tax rates to income before income taxes. Years ended April 30, 2020 2019 2018 Income taxes at the statutory rates 21.0 % 21.0 % 30.4 % Impact of Tax Reform Act — % 0.4 % (80.5 )% Federal tax credits (1.9 )% (2.3 )% (2.2 )% State income taxes, net of federal tax benefit 4.0 % 4.3 % 3.7 % Impact of phased-in state law changes, net of federal benefit (0.2 )% (1.8 )% 0.8 % ASU 2016-09 benefit (share based compensation) (0.5 )% (0.6 )% (0.8 )% Other 0.5 % 1.6 % 0.3 % 22.9 % 22.6 % (48.3 )% The Company recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company had a total of $8,907 and $7,287 in gross unrecognized tax benefits at April 30, 2020 and 2019 , respectively, which is recorded in other long-term liabilities in the consolidated balance sheets. Of this amount, $7,059 represents the amount of unrecognized tax benefits that, if recognized, would impact our effective tax rate. Unrecognized tax benefits increased $1,620 during the twelve months ended April 30, 2020 , due primarily to the increase associated with income tax filing positions for the current year exceeding the decrease related to the expiration of certain statute of limitations. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: 2020 2019 Beginning balance $ 7,287 $ 6,421 Additions based on tax positions related to current year 2,780 2,169 Reductions due to lapse of applicable statute of limitations (1,160 ) (1,303 ) Ending balance $ 8,907 $ 7,287 The total net amount of accrued interest and penalties for such unrecognized tax benefits was $354 and $242 at April 30, 2020 and 2019 , respectively, and is included in other long-term liabilities. Net interest and penalties included in income tax expense for the twelve month periods ended April 30, 2020 and 2019 was an increase in tax expense of $112 and $51 , respectively. A number of years may elapse before an uncertain tax position is audited and ultimately settled. It is difficult to predict the ultimate outcome or the timing of resolution for uncertain tax positions. It is reasonably possible that the amount of unrecognized tax benefits could significantly increase or decrease within the next twelve months. These changes could result from the expiration of the statute of limitations, examinations or other unforeseen circumstances. The IRS is currently examining tax years 2016 and 2017. The Company has no other ongoing federal or state income tax examinations. At this time, the Company’s best estimate of the reasonably possible change in the amount of the gross unrecognized tax benefits is a decrease of $1,800 during the next twelve months mainly due to the expiration of certain statutes of limitation. The federal statute of limitations remains open for the tax years 2012 and forward. Tax years 2012 and forward are subject to audit by state tax authorities depending on open statute of limitations waivers and the tax code of each state.

Leases

Leases	12 Months Ended
	Apr. 30, 2020
Leases [Abstract]
Leases	LEASES The Company is a lessee in situations where we lease property and equipment, most commonly land or building, from a lessor. The Company is a lessor in situations where the Company owns land or building and leases a portion or all of the property or equipment to a tenant. In both situations, leases are reported in accordance with ASC 842 - Leases . As a lessee, the Company recognizes 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 are initially 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, we have elected to not recognize lease assets and lease liabilities and will recognize lease expense on a straight-line basis over the lease term. The Company records the operating lease liability in accrued expenses and other long-term liabilities and records the finance lease liability within current maturities of long-term debt and long term debt and finance lease obligations on the consolidated balance sheets. We have elected to adopt the package of practical expedients, as well as the land easement practical expedient. All lessor related activity is considered immaterial to the consolidated financial statements. The leases initially recorded under ASC 842 were recognized, at the time of adoption, at an amount equal to the present value of the lease payments using the incremental borrowing rate of debt based upon the remaining term of the lease. New leases are recognized at the present value of the lease payments using the implicit rate in the lease agreement when it is readily determinable. In the case the implicit rate is not readily determinable, the Company uses the incremental borrowing rate of debt based on the term of the lease. Several leases have variable payment components of the lease such as commission based payments or payments for property taxes and insurance. For these leases, the Company has not included those variable payments in the calculation of the lease liability as the payments are not in-substance fixed and do not depend on an index or rate. These variable payments will be expensed as incurred. The Company also has options to renew or extend the current lease arrangement on many of our leases. In these situations, if it was reasonably certain the lease would be extended, we have included those extensions within the remaining lease payments at the time of measurement. Lease right-of-use assets outstanding as of April 30, 2020 consisted of the following (in thousands): Classification April 30, 2020 Operating lease right-of-use assets Other assets $ 21,143 Finance lease right-of-use assets Property and equipment $ 14,583 Weighted average remaining lease terms, weighted average discount rates, and supplementary cash flow information for outstanding leases were as follows: April 30, 2020 Weighted-average remaining lease-term - finance lease 10.9 Weighted-average remaining lease-term - operating lease 20.4 Weighted-average discount rate - finance lease 5.34 % Weighted-average discount rate - operating lease 4.25 % Right-of-use assets obtained in exchange for new finance lease liabilities (in thousands) $ 1,520 Right-of-use assets obtained in exchange for new operating lease liabilities (in thousands) $ 2,840 Future minimum payments under the finance leases and operating leases with initial or remaining terms of one year or more consisted of the following at April 30, 2020 and April 30, 2019 : Years ended April 30, 2020 Finance leases Operating leases 2021 $ 3,118 $ 1,829 2022 3,110 1,814 2023 3,116 1,717 2024 2,565 1,683 2025 1,167 1,686 Thereafter 10,764 25,335 Total minimum lease payments 23,840 34,064 Less amount representing interest 7,094 12,468 Present value of net minimum lease payments $ 16,746 $ 21,596 Years ended April 30, 2019 Capital leases Operating leases 2020 $ 3,103 $ 1,703 2021 3,109 1,547 2022 3,096 1,354 2023 3,098 1,228 2024 2,548 1,066 Thereafter 9,215 10,438 Total minimum lease payments 24,169 $ 17,336 Less amount representing interest 7,689 Present value of net minimum lease payments $ 16,480 Effective during the third quarter of fiscal year 2020, Casey’s Marketing Company, and the City of Joplin, Missouri (“Joplin”) entered into an agreement in which Joplin agreed to issue up to $51.4 million of taxable industrial development revenue bonds for the purpose of acquiring, constructing, improving, purchasing, equipping and installing a warehouse and distribution facility, which is to be developed and used by the Company. As title transfers to Joplin throughout development and the Company subsequently leases the related asset from Joplin, we have accounted for the transaction under the sale-and-leaseback guidance included in ASC 842-40. We have a purchase option included in the lease agreement for below the fair value of the asset, which prevents the transfer of the assets to Joplin from being recognized as a sale. Accordingly, we have not recognized any gain or loss related to the transfer. Furthermore, we have not derecognized the transferred assets and continue to recognize them in property and equipment on the consolidated balance sheets. The Company has the right and intends to set-off any obligations to make payments under the lease, with proceeds due from the industrial revenue bonds. As of April 30, 2020 , we have $ 5,505 recognized as construction in process in property and equipment on the consolidated balance sheets related to this agreement.
Leases	LEASES The Company is a lessee in situations where we lease property and equipment, most commonly land or building, from a lessor. The Company is a lessor in situations where the Company owns land or building and leases a portion or all of the property or equipment to a tenant. In both situations, leases are reported in accordance with ASC 842 - Leases . As a lessee, the Company recognizes 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 are initially 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, we have elected to not recognize lease assets and lease liabilities and will recognize lease expense on a straight-line basis over the lease term. The Company records the operating lease liability in accrued expenses and other long-term liabilities and records the finance lease liability within current maturities of long-term debt and long term debt and finance lease obligations on the consolidated balance sheets. We have elected to adopt the package of practical expedients, as well as the land easement practical expedient. All lessor related activity is considered immaterial to the consolidated financial statements. The leases initially recorded under ASC 842 were recognized, at the time of adoption, at an amount equal to the present value of the lease payments using the incremental borrowing rate of debt based upon the remaining term of the lease. New leases are recognized at the present value of the lease payments using the implicit rate in the lease agreement when it is readily determinable. In the case the implicit rate is not readily determinable, the Company uses the incremental borrowing rate of debt based on the term of the lease. Several leases have variable payment components of the lease such as commission based payments or payments for property taxes and insurance. For these leases, the Company has not included those variable payments in the calculation of the lease liability as the payments are not in-substance fixed and do not depend on an index or rate. These variable payments will be expensed as incurred. The Company also has options to renew or extend the current lease arrangement on many of our leases. In these situations, if it was reasonably certain the lease would be extended, we have included those extensions within the remaining lease payments at the time of measurement. Lease right-of-use assets outstanding as of April 30, 2020 consisted of the following (in thousands): Classification April 30, 2020 Operating lease right-of-use assets Other assets $ 21,143 Finance lease right-of-use assets Property and equipment $ 14,583 Weighted average remaining lease terms, weighted average discount rates, and supplementary cash flow information for outstanding leases were as follows: April 30, 2020 Weighted-average remaining lease-term - finance lease 10.9 Weighted-average remaining lease-term - operating lease 20.4 Weighted-average discount rate - finance lease 5.34 % Weighted-average discount rate - operating lease 4.25 % Right-of-use assets obtained in exchange for new finance lease liabilities (in thousands) $ 1,520 Right-of-use assets obtained in exchange for new operating lease liabilities (in thousands) $ 2,840 Future minimum payments under the finance leases and operating leases with initial or remaining terms of one year or more consisted of the following at April 30, 2020 and April 30, 2019 : Years ended April 30, 2020 Finance leases Operating leases 2021 $ 3,118 $ 1,829 2022 3,110 1,814 2023 3,116 1,717 2024 2,565 1,683 2025 1,167 1,686 Thereafter 10,764 25,335 Total minimum lease payments 23,840 34,064 Less amount representing interest 7,094 12,468 Present value of net minimum lease payments $ 16,746 $ 21,596 Years ended April 30, 2019 Capital leases Operating leases 2020 $ 3,103 $ 1,703 2021 3,109 1,547 2022 3,096 1,354 2023 3,098 1,228 2024 2,548 1,066 Thereafter 9,215 10,438 Total minimum lease payments 24,169 $ 17,336 Less amount representing interest 7,689 Present value of net minimum lease payments $ 16,480 Effective during the third quarter of fiscal year 2020, Casey’s Marketing Company, and the City of Joplin, Missouri (“Joplin”) entered into an agreement in which Joplin agreed to issue up to $51.4 million of taxable industrial development revenue bonds for the purpose of acquiring, constructing, improving, purchasing, equipping and installing a warehouse and distribution facility, which is to be developed and used by the Company. As title transfers to Joplin throughout development and the Company subsequently leases the related asset from Joplin, we have accounted for the transaction under the sale-and-leaseback guidance included in ASC 842-40. We have a purchase option included in the lease agreement for below the fair value of the asset, which prevents the transfer of the assets to Joplin from being recognized as a sale. Accordingly, we have not recognized any gain or loss related to the transfer. Furthermore, we have not derecognized the transferred assets and continue to recognize them in property and equipment on the consolidated balance sheets. The Company has the right and intends to set-off any obligations to make payments under the lease, with proceeds due from the industrial revenue bonds. As of April 30, 2020 , we have $ 5,505 recognized as construction in process in property and equipment on the consolidated balance sheets related to this agreement.

Benefit Plans

Benefit Plans	12 Months Ended
	Apr. 30, 2020
Retirement Benefits [Abstract]
Benefit Plans	BENEFIT PLANS 401(k) Plan: The Company provides team members with a defined contribution 401(k) Plan. The 401(k) Plan is available to all team members who meet minimum age and service requirements. The Company contributions consist of matching amounts in Company stock and are allocated based on team member contributions. Contributions to the 401(k) Plan were $10,571 , $9,918 , and $9,614 for the years ended April 30, 2020 , 2019 , and 2018 , respectively. On April 30, 2020 and 2019 , 1,113,882 and 1,261,258 shares of common stock, respectively, were held by the trustee of the 401(k) Plan in trust for distribution to eligible participants upon death, disability, retirement, or termination of employment. Shares held by the 401(k) Plan are treated as outstanding in the computation of net income per common share. Supplemental executive retirement plan: The Company has a nonqualified supplemental executive retirement plan (SERP) for two of its former executive officers, one of whom retired April 30, 2003 and the other on April 30, 2008. The SERP provides for the Company to pay annual retirement benefits, up to 50% of base compensation until death of the officer. If death occurs within twenty years of retirement, the benefits become payable to the officer’s spouse (at a reduced level) until the spouse’s death or twenty years from the date of the officer’s retirement, whichever comes first. The Company recorded the deferred compensation over the term of employment. The amounts accrued at April 30, 2020 and 2019 , respectively, were $3,434 and $3,800 . The discount rates were based off of the Company's incremental borrowing rate, and ranged from 2.04% to 2.44% for the year ended April 30, 2020 . The discount rates used for the year ended April 30, 2019 ranged from 3.78% to 4.01% . The amount expensed in fiscal 2020 was $269 and the Company expects to pay $ 635 per year for each of the next three years, and $354 in the fourth and fifth year. Expense incurred in fiscal 2019 and fiscal 2018 was $221 and $112 , respectively. Other post-employment benefits: The Company also has severance and/or deferred compensation agreements with former team members. The amounts accrued at April 30, 2020 and 2019 were $3,793 and $2,870 , respectively. The Company expects to pay $1,511 in fiscal 2021 and $401 for each of the four years thereafter under the agreements. The expense (benefit received) incurred in fiscal 2020 , 2019 , and 2018 related to these agreements was $2,727 , $(97) , and $131 , respectively.

Commitments

Commitments	12 Months Ended
	Apr. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments	COMMITMENTS During the 2019 fiscal year, the Company was a party to an employment agreement with Terry W. Handley with respect to his service as President and Chief Executive Officer. Mr. Handley retired from the Company on June 23, 2019. In connection with the appointment of Darren M. Rebelez as President and Chief Executive Officer, effective June 24, 2019, the Company is a party to an employment agreement with Mr. Rebelez that provides he will receive aggregate base compensation of not less than $950 per year, exclusive of incentive payments. The Company also has entered into change of control agreements with its president and CEO and 21 other officers, providing for certain payments in the event of termination in connection with a change of control of the Company.

Contingencies

Contingencies	12 Months Ended
	Apr. 30, 2020
Loss Contingency [Abstract]
Contingencies	CONTINGENCIES Environmental compliance: The United States Environmental Protection Agency and several states have adopted laws and regulations relating to underground storage tanks used for petroleum products. Several states in which the Company does business have trust fund programs with provisions for sharing or reimbursing corrective action or remediation costs. Management currently believes that substantially all capital expenditures for electronic monitoring, cathodic protection, and overfill/spill protection to comply with existing regulations have been completed. The Company has an accrued liability at April 30, 2020 and 2019 of approximately $328 and $381 , respectively, for estimated expenses related to anticipated corrective actions or remediation efforts, including relevant legal and consulting costs. Management believes the Company has no material joint and several environmental liability with other parties. Additional regulations or amendments to the existing regulations could result in future revisions to such estimated expenditures. Legal matters: From time to time we may be involved in legal or administrative proceedings or investigations arising from the conduct of our business operations, including, but not limited to, contractual disputes; employment, personnel, or accessibility matters; personal injury and property damage claims; and claims by federal, state, and local regulatory authorities relating to the sale of products pursuant to licenses and permits issued by those authorities. Claims for damages in those actions may be substantial. While the outcome of such litigation, proceedings, investigations, or claims is never certain, it is our opinion, after taking into consideration legal counsel’s assessment and the availability of insurance proceeds and other collateral sources to cover potential losses, that the ultimate disposition of such matters currently pending or threatened, individually or cumulatively, will not have a material impact on our consolidated financial position and results of operations. Other: At April 30, 2020 , the Company was primarily self-insured for workers’ compensation claims in all but two states of its marketing territory. In North Dakota and Ohio, the Company is required to participate in an exclusive, state managed fund for all workers compensation claims. The Company was also partially self-insured for general liability and auto liability under an agreement that provides for annual stop-loss limits equal to or exceeding $ 500 for general liability and auto liability and $ 350 for workers' compensation. To facilitate this agreement, letters of credit approximating $21,526 were issued and outstanding at April 30, 2020 and 2019 , on the insurance company’s behalf. Additionally, the Company is self-insured for its portion of team member medical expenses. At April 30, 2020 and 2019 , the Company had $44,959 and $44,334 , respectively, outstanding for estimated claims relating to self-insurance, the majority of which has been actuarially determined.

Quarterly Financial Data

Quarterly Financial Data	12 Months Ended
	Apr. 30, 2020
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data	QUARTERLY FINANCIAL DATA (Dollars in thousands, except per share amounts) (Unaudited) Year ended April 30, 2020 Q1 Q2 Q3 Q4 Year Total Total revenue Fuel $ 1,627,568 1,514,474 1,376,018 999,352 5,517,412 Grocery and other merchandise 687,918 660,562 582,407 568,080 2,498,966 Prepared food and fountain 295,877 297,846 273,630 229,853 1,097,207 Other 15,266 14,704 16,143 15,598 61,711 $ 2,626,629 2,487,586 2,248,198 1,812,883 9,175,296 Revenue less cost of goods sold excluding depreciation and amortization and credit card fees Fuel $ 150,989 140,798 124,257 198,803 614,847 Grocery and other merchandise 215,453 220,134 191,692 172,862 800,140 Prepared food and fountain 184,012 181,452 164,795 137,833 668,092 Other 15,232 14,681 16,119 15,572 61,605 $ 565,686 557,065 496,863 525,070 2,144,684 Net income $ 85,815 81,981 33,959 62,091 263,846 Income per common share Basic 2.33 2.22 0.92 1.68 7.14 Diluted 2.31 2.21 0.91 1.67 7.10 Year ended April 30, 2019 Q1 Q2 Q3 Q4 Year Total Total revenue Fuel $ 1,647,417 1,621,868 1,233,620 1,345,866 5,848,770 Grocery and other merchandise 644,800 618,250 543,773 562,699 2,369,521 Prepared food and fountain 281,003 283,062 256,144 254,086 1,074,294 Other 15,212 14,825 14,539 15,746 60,325 $ 2,588,432 2,538,005 2,048,076 2,178,397 9,352,910 Revenue less cost of goods sold excluding depreciation and amortization and credit card fees Fuel $ 123,476 118,656 122,559 101,417 466,107 Grocery and other merchandise 208,925 200,193 173,512 177,188 759,817 Prepared food and fountain 174,184 176,675 159,682 158,057 668,598 Other 15,183 14,797 14,512 15,708 60,202 $ 521,768 510,321 470,265 452,370 1,954,724 Net income $ 70,224 66,615 41,835 25,212 203,886 Income per common share Basic 1.92 1.82 1.14 0.69 5.55 Diluted 1.90 1.80 1.13 0.68 5.51

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Apr. 30, 2020
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. Certain amounts in prior year have been reclassified to conform to current year presentation.
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 $87,546 and $80,814 at April 30, 2020 and 2019 , respectively. There were no material LIFO liquidations during the periods presented. Below is a summary of the inventory values at April 30, 2020 and 2019 : Years ended April 30, 2020 2019 Fuel $ 33,695 $ 83,204 Merchandise 202,312 189,836 Total inventory $ 236,007 $ 273,040 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, including billbacks, are treated as a reduction in cost of goods sold and are recognized primarily based on the purchase of product or shipment of product from the warehouse to the store, or sale of product to our guests. These are recognized in the period earned based on the applicable rebate agreement. Reimbursements of an operating expense (e.g., advertising) are recorded as reductions of the related expense. 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 consolidated statements of income.
Capitalized software implementation costs and Goodwill	Capitalized software implementation costs: The Company capitalizes expenditures related to the implementation of software as incurred. These costs are expensed on a straight-line basis within operating expenses over the contractual life of the contract with the related software provider. The useful lives utilized for capitalized software implementation costs range from 3 - 13 years. As of April 30, 2020 and April 30, 2019 , the Company had recognized $ 38,593 and $27,873 of capitalized software implementation costs, respectively. The outstanding balance is recognized in other assets on the consolidated balance sheets. Goodwill:
Depreciation and amortization	Depreciation and amortization: Depreciation of property and equipment are computed using the straight-line method over the following estimated useful lives: Buildings 25-40 years Machinery and equipment 5-40 years Finance lease right-of-use assets 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 the related asset is 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, as well as estimates provided by its own and/or third-party real estate experts.
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 and other merchandise, prepared food and fountain and other revenue at the time of the sale to the guest. Sales taxes collected from guests and remitted to the government are recorded on a net basis in the consolidated financial statements. A portion of revenue from sales that include a redeemable box top coupon or points under our Casey’s Rewards program is deferred. The deferred portion of the sale represents the value of the estimated future redemption of the box top coupon or points. The amounts related to redeemable box top coupons and points are deferred until their redemption or expiration. Revenue related to the box top coupons and points issued is expected to be recognized less than one year from the original sale to the guest. As of April 30, 2020 and April 30, 2019 , the Company recognized a contract liability of $ 11,180 and $ 6,931 , respectively, related to the outstanding box top coupons and Casey's Rewards points, which is included in other accrued expenses on the consolidated balance sheets. Gift card related revenue is recognized as the gift cards are used by the guest. Gift card breakage revenue is recognized based on the estimated gift card breakage rate over the pro rata usage of the card.
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 a team member has met certain requirements in the award agreement. For example, if retirement provisions are satisfied which allow a team member 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 and unvested restricted stock units with time-based restrictions 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 a long-lived asset at the time an underground storage tank is installed. The Company amortizes the amount added to property and equipment on a straight-line basis 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:
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, 2020 , 2019 , or 2018 . However, we do from time to time, participate in a forward buy of certain commodities. These are not accounted for as derivatives under the normal purchase and sale exclusions within the applicable accounting 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 consolidated statements of income over the vesting period of the award, adjusted for certain retirement provisions. Additionally, certain awards include performance and market conditions. The majority of 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, 2020 , we operated 2,207 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 guests. 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 guests. We make specific disclosures concerning the three broad merchandise categories of fuel, grocery and other merchandise, and prepared food and 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. Under the cumulative-effect adjustment comparative periods would not be restated. Under the modified retrospective approach leases are recognized and measured under the noted guidance at the beginning of the earliest period presented. The new standard is effective for public companies for annual periods beginning after December 15, 2018, and interim periods within those years, with early adoption permitted. We adopted this guidance as of May 1, 2019 using the modified retrospective approach and elected the cumulative-effect adjustment practical expedient. As a result of the transition method selected, the Company did not restate previously reported comparable periods. Please refer to note 7 for additional information regarding the Company’s adoption of ASC 842. In October 2016, the FASB issued ASU No. 2016-16, Intra-Entity Transfers of Assets Other than Inventory . We adopted this standard in the quarter ended July 31, 2018, which resulted in no material impact to the Company. 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. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes . The standard includes changes that eliminate certain exceptions related to the approach for intraperiod tax allocation and the methodology for calculating income taxes in an interim period. It also simplifies aspects of the accounting for franchise taxes, certain transactions that result in a step-up in the tax basis of goodwill, and enacted changes in tax laws or rates. The Company is required to adopt this guidance in the first quarter of its fiscal 2022, with early adoption permitted. The Company is currently evaluating the impact the standard has on the consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848) - Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The standard included optional guidance for a limited period of time to help ease the burden in accounting for the effects of reference rate reform. The new standard is effective for all entities through December 31, 2022. The Company does not expect the adoption of this standard to have a material impact on our consolidated financial statements.
Leases	The Company is a lessee in situations where we lease property and equipment, most commonly land or building, from a lessor. The Company is a lessor in situations where the Company owns land or building and leases a portion or all of the property or equipment to a tenant. In both situations, leases are reported in accordance with ASC 842 - Leases . As a lessee, the Company recognizes 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 are initially 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, we have elected to not recognize lease assets and lease liabilities and will recognize lease expense on a straight-line basis over the lease term. The Company records the operating lease liability in accrued expenses and other long-term liabilities and records the finance lease liability within current maturities of long-term debt and long term debt and finance lease obligations on the consolidated balance sheets. We have elected to adopt the package of practical expedients, as well as the land easement practical expedient. All lessor related activity is considered immaterial to the consolidated financial statements. The leases initially recorded under ASC 842 were recognized, at the time of adoption, at an amount equal to the present value of the lease payments using the incremental borrowing rate of debt based upon the remaining term of the lease. New leases are recognized at the present value of the lease payments using the implicit rate in the lease agreement when it is readily determinable. In the case the implicit rate is not readily determinable, the Company uses the incremental borrowing rate of debt based on the term of the lease. Several leases have variable payment components of the lease such as commission based payments or payments for property taxes and insurance. For these leases, the Company has not included those variable payments in the calculation of the lease liability as the payments are not in-substance fixed and do not depend on an index or rate. These variable payments will be expensed as incurred. The Company also has options to renew or extend the current lease arrangement on many of our leases. In these situations, if it was reasonably certain the lease would be extended, we have included those extensions within the remaining lease payments at the time of measurement.
Leases	The Company is a lessee in situations where we lease property and equipment, most commonly land or building, from a lessor. The Company is a lessor in situations where the Company owns land or building and leases a portion or all of the property or equipment to a tenant. In both situations, leases are reported in accordance with ASC 842 - Leases . As a lessee, the Company recognizes 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 are initially 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, we have elected to not recognize lease assets and lease liabilities and will recognize lease expense on a straight-line basis over the lease term. The Company records the operating lease liability in accrued expenses and other long-term liabilities and records the finance lease liability within current maturities of long-term debt and long term debt and finance lease obligations on the consolidated balance sheets. We have elected to adopt the package of practical expedients, as well as the land easement practical expedient. All lessor related activity is considered immaterial to the consolidated financial statements. The leases initially recorded under ASC 842 were recognized, at the time of adoption, at an amount equal to the present value of the lease payments using the incremental borrowing rate of debt based upon the remaining term of the lease. New leases are recognized at the present value of the lease payments using the implicit rate in the lease agreement when it is readily determinable. In the case the implicit rate is not readily determinable, the Company uses the incremental borrowing rate of debt based on the term of the lease. Several leases have variable payment components of the lease such as commission based payments or payments for property taxes and insurance. For these leases, the Company has not included those variable payments in the calculation of the lease liability as the payments are not in-substance fixed and do not depend on an index or rate. These variable payments will be expensed as incurred. The Company also has options to renew or extend the current lease arrangement on many of our leases. In these situations, if it was reasonably certain the lease would be extended, we have included those extensions within the remaining lease payments at the time of measurement.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Apr. 30, 2020
Accounting Policies [Abstract]
Summary of the Inventory Values	Below is a summary of the inventory values at April 30, 2020 and 2019 : Years ended April 30, 2020 2019 Fuel $ 33,695 $ 83,204 Merchandise 202,312 189,836 Total inventory $ 236,007 $ 273,040
Depreciation of Property and Equipment and Amortization of Capital Lease Assets	Depreciation of property and equipment are computed using the straight-line method over the following estimated useful lives: Buildings 25-40 years Machinery and equipment 5-40 years Finance lease right-of-use assets Lesser of term of lease or life of asset Leasehold improvements Lesser of term of lease or life of asset

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
	Apr. 30, 2020
Business Combinations [Abstract]
Allocation of Purchase Price	Allocation of the purchase price for the transactions in aggregate for the year ended April 30, 2020 is as follows (in thousands): Assets acquired: Inventories $ 680 Property and equipment 28,384 Total assets 29,064 Liabilities assumed: Accrued expenses 210 Total liabilities 210 Net tangible assets acquired 28,854 Goodwill 3,852 Total consideration paid $ 32,706
Summary of Unaudited Pro Forma Information	The following unaudited pro forma information presents a summary of our consolidated results of operations as if the transactions referenced above occurred at the beginning of the first fiscal year of the periods presented (amounts in thousands, except per share data): Years Ended April 30, 2020 2019 Total revenue $ 9,217,749 $ 9,421,773 Net income $ 265,233 $ 205,987 Net income per common share Basic $ 7.18 $ 5.61 Diluted $ 7.13 $ 5.57

Fair Value of Financial Instr_2

Fair Value of Financial Instruments and Long Term Debt (Tables)	12 Months Ended
	Apr. 30, 2020
Fair Value Disclosures [Abstract]
Carrying Value of Long-Term Debt	The carrying amount of the Company’s long-term debt and finance lease obligations by issuance is as follows: As of April 30, 2020 2019 Finance lease liabilities (Note 7) $ 16,746 $ 16,480 5.72% Senior notes due in 14 installments beginning September 30, 2012 and ending March 30, 2020 — 15,000 5.22% Senior notes due August 9, 2020 (1) 569,000 569,000 3.67% Senior notes (Series A) due in 7 installments beginning June 17, 2022, and ending June 15, 2028 150,000 150,000 3.75% Senior notes (Series B) due in 7 installments beginning December 17, 2022 and ending December 18, 2028 50,000 50,000 3.65% Senior notes (Series C) due in 7 installments beginning May 2, 2025 and ending May 2, 2031 50,000 50,000 3.72% Senior notes (Series D) due in 7 installments beginning October 28, 2025 and ending October 28, 2031 50,000 50,000 3.51% Senior notes (Series E) due June 13, 2025 150,000 150,000 3.77% Senior notes (Series F) due August 22, 2028 250,000 250,000 1,285,746 1,300,480 Less current maturities (2) 571,244 17,205 $ 714,502 $ 1,283,275 (1) The Company is in the process of refinancing these Senior notes, and expects to execute the applicable note purchase agreement for the refinancing in the near future shortly after the report date. (2) Long-term debt is presented gross in the table above, but net of unamortized debt issuance costs of $964 and $1,171 on the consolidated balance sheets for the years ended April 30, 2020 and 2019 , respectively.
Schedule of Maturities of Long-term Debt Including Capitalized Lease Obligations	Listed below are the aggregate maturities of long-term debt, including finance lease obligations, for the 5 years commencing May 1, 2020 and thereafter: Years ended April 30, Finance Leases Senior Notes Total 2021 $ 2,244 $ 569,000 $ 571,244 2022 2,354 — 2,354 2023 2,484 20,000 22,484 2024 2,060 32,000 34,060 2025 734 32,000 32,734 Thereafter 6,870 616,000 622,870 $ 16,746 $ 1,269,000 $ 1,285,746
Finance Lease, Liability, Maturity	Listed below are the aggregate maturities of long-term debt, including finance lease obligations, for the 5 years commencing May 1, 2020 and thereafter: Years ended April 30, Finance Leases Senior Notes Total 2021 $ 2,244 $ 569,000 $ 571,244 2022 2,354 — 2,354 2023 2,484 20,000 22,484 2024 2,060 32,000 34,060 2025 734 32,000 32,734 Thereafter 6,870 616,000 622,870 $ 16,746 $ 1,269,000 $ 1,285,746 April 30, 2020 Weighted-average remaining lease-term - finance lease 10.9 Weighted-average remaining lease-term - operating lease 20.4 Weighted-average discount rate - finance lease 5.34 % Weighted-average discount rate - operating lease 4.25 % Right-of-use assets obtained in exchange for new finance lease liabilities (in thousands) $ 1,520 Right-of-use assets obtained in exchange for new operating lease liabilities (in thousands) $ 2,840 Future minimum payments under the finance leases and operating leases with initial or remaining terms of one year or more consisted of the following at April 30, 2020 and April 30, 2019 : Years ended April 30, 2020 Finance leases Operating leases 2021 $ 3,118 $ 1,829 2022 3,110 1,814 2023 3,116 1,717 2024 2,565 1,683 2025 1,167 1,686 Thereafter 10,764 25,335 Total minimum lease payments 23,840 34,064 Less amount representing interest 7,094 12,468 Present value of net minimum lease payments $ 16,746 $ 21,596 Years ended April 30, 2019 Capital leases Operating leases 2020 $ 3,103 $ 1,703 2021 3,109 1,547 2022 3,096 1,354 2023 3,098 1,228 2024 2,548 1,066 Thereafter 9,215 10,438 Total minimum lease payments 24,169 $ 17,336 Less amount representing interest 7,689 Present value of net minimum lease payments $ 16,480

Preferred and Common Stock (Tab

Preferred and Common Stock (Tables)	12 Months Ended
	Apr. 30, 2020
Share-based Payment Arrangement [Abstract]
Schedule of Restricted Stock and Restricted Stock Unit Grants	The following table summarizes the equity-related grants made during the three-year period ended April 30, 2020 : Date of Grant Type of Grant Shares Granted Recipients Vesting Date Fair Value at Grant Date June 1, 2017 Restricted Stock Units 63,699 Key Employees June 1, 2020 $7,388 July 14, 2017 Restricted Stock Units (1) 61,126 Officers June 15, 2020 $6,912 September 28, 2017 Restricted Stock 8,344 Non-Employee Board Members Immediate $920 March 29, 2018 Restricted Stock Units 2,150 Non-Employee Board Members September 21, 2018 $236 May 24, 2018 Restricted Stock Units 88,846 Key Employees May 24, 2021 $8,593 June 8, 2018 Restricted Stock Units (1) 75,402 Officers June 8, 2021 $7,571 September 5, 2018 Restricted Stock Units 7,984 Non-Employee Board Members 2019 Annual Shareholders' Meeting Date $920 June 4, 2019 Restricted Stock Units 75,959 Key Employees June 4, 2022 $9,886 June 4, 2019 Restricted Stock Units (1) 59,579 Officers June 4, 2022 $9,097 June 24, 2019 Restricted Stock Units (2) 32,786 CEO Various (2) $5,700 September 4, 2019 Restricted Stock Units 5,504 Non-Employee Board Members 2020 Annual Shareholders' Meeting Date $919 December 23, 2019 Restricted Stock Units (3) 5,000 CEO Various (3) $788 Various (4) Restricted Stock Units (4) 8,444 Officers Various (4) $1,368 Various (5) Restricted Stock Units (5) 1,763 Officers Various (5) $354 (1) This grant of restricted stock units includes time-based, performance-based and market-based awards. The performance-based awards included in the figure above represent a “target” amount; the final amount earned is based on the satisfaction of certain performance measures over a three -year performance period and will range from 0% to 200% of the “target". The market-based awards incorporate market conditions in determining fair value as of the grant date, and will also range from 0% to 200% of the "target". Total market-based expense of approximately $ 2.3 million for the 2017 grant, $ 2.6 million for the 2018 grant, and $3.1 million for the 2019 grant will be recognized on a straight-line basis over the vesting period, subject to acceleration for retirement provisions. (2) This grant of restricted stock units is comprised of time-based awards that vest ratably on each June 23, 2020 through 2022, along with a market-based award vesting June 23, 2022. The market-based award incorporates market conditions in determining fair value on the grant date and will range from 0% to 200% of the target. Total market-based expense of approximately $1.8 million will be recognized on a straight-line basis over the vesting period. (3) This grant of restricted stock units is comprised of performance-based awards which are calculated based upon targets achieved over performance periods from January 1, 2020 to December 31, 2020. If the performance targets are met, the units vest ratably on each January 15, 2021 through 2023. (4) These grants of restricted stock units were issued to various officers throughout the fiscal year. The grants were comprised of time-based awards and vest in accordance with the agreements, ranging from January 2021 to January 2023. (5) These grants of restricted stock units were issued to various officers throughout the fiscal year. The grants includes time-based, performance-based and market-based awards. The performance-based awards included in the figure above represent a “target” amount; the final amount earned is based on the satisfaction of certain performance measures over a three -year performance period and will range from 0% to 200% of the “target". The market-based awards incorporate market conditions in determining fair value as of the grant date, and will also range from 0% to 200% of the "target". Total market-based expense of approximately $177 will be recognized on a straight-line basis over the vesting period.
Schedule of Stock Options Activity	Information concerning the issuance of stock options under the 2009 Plan is presented in the following table (no stock option awards have been granted under the 2018 Plan): Number of option shares Weighted average option exercise price Outstanding at April 30, 2017 222,050 $ 38.51 Exercised (40,377 ) 34.11 Outstanding at April 30, 2018 181,673 $ 39.48 Exercised (71,546 ) 32.02 Forfeited (300 ) 25.26 Outstanding at April 30, 2019 109,827 $ 44.39 Exercised (66,638 ) 44.39 Outstanding at April 30, 2020 43,189 $ 44.39
Schedule of Restricted Stock Units Award Activity	Information concerning the issuance of restricted stock units under the 2018 Plan and the 2009 Plan is presented in the following table: Unvested at April 30, 2017 303,400 Granted 126,980 Vested (88,700 ) Forfeited (2,699 ) Unvested at April 30, 2018 338,981 Granted 172,232 Vested (104,166 ) Forfeited (10,530 ) Performance Award Adjustments (7,717 ) Unvested at April 30, 2019 388,800 Granted 189,035 Vested (108,484 ) Forfeited (25,146 ) Performance Award Adjustments 29,594 Unvested at April 30, 2020 473,799

Net Income Per Common Share (Ta

Net Income Per Common Share (Tables)	12 Months Ended
	Apr. 30, 2020
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Earnings Per Share	Computations for basic and diluted earnings per common share are presented below: Years ended April 30, 2020 2019 2018 Basic Net income $ 263,846 $ 203,886 $ 317,903 Weighted average shares outstanding-basic 36,956,115 36,709,940 37,778,304 Basic earnings per common share $ 7.14 $ 5.55 $ 8.41 Diluted Net income $ 263,846 $ 203,886 $ 317,903 Weighted-average shares outstanding-basic 36,956,115 36,709,940 37,778,304 Plus effect of stock options and restricted stock units 229,713 265,447 353,795 Weighted-average shares outstanding-diluted 37,185,828 36,975,387 38,132,099 Diluted earnings per common share $ 7.10 $ 5.51 $ 8.34

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Apr. 30, 2020
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	Income tax expense (benefit) attributable to earnings consisted of the following components: Years ended April 30, 2020 2019 2018 Current tax expense (benefit): Federal $ 22,182 $ 10,326 (7,057 ) State 6,210 3,853 1,769 28,392 14,179 (5,288 ) Deferred tax expense (benefit) 49,810 45,337 (98,178 ) Total income tax expense (benefit) $ 78,202 $ 59,516 (103,466 )
Schedule of Deferred Tax Assets and Liabilities	The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities were as follows: As of April 30, 2020 2019 Deferred tax assets: Accrued liabilities and reserves $ 15,953 $ 11,705 Property and equipment depreciation 27,512 24,661 Workers compensation 8,303 8,277 Deferred compensation 3,781 3,827 Equity compensation 7,083 6,727 State net operating losses & tax credits 424 775 Other 1,335 1,033 Total gross deferred tax assets 64,391 57,005 Less valuation allowance 47 47 Total net deferred tax assets 64,344 56,958 Deferred tax liabilities: Property and equipment depreciation (474,829 ) (420,710 ) Goodwill (24,348 ) (21,560 ) Other (765 ) (476 ) Total gross deferred tax liabilities (499,942 ) (442,746 ) Net deferred tax liability $ (435,598 ) (385,788 )
Schedule of Effective Income Tax Rate Reconciliation	Total reported tax expense applicable to the Company’s continuing operations varies from the tax that would have resulted from applying the statutory U.S. federal income tax rates to income before income taxes. Years ended April 30, 2020 2019 2018 Income taxes at the statutory rates 21.0 % 21.0 % 30.4 % Impact of Tax Reform Act — % 0.4 % (80.5 )% Federal tax credits (1.9 )% (2.3 )% (2.2 )% State income taxes, net of federal tax benefit 4.0 % 4.3 % 3.7 % Impact of phased-in state law changes, net of federal benefit (0.2 )% (1.8 )% 0.8 % ASU 2016-09 benefit (share based compensation) (0.5 )% (0.6 )% (0.8 )% Other 0.5 % 1.6 % 0.3 % 22.9 % 22.6 % (48.3 )%
Schedule of Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: 2020 2019 Beginning balance $ 7,287 $ 6,421 Additions based on tax positions related to current year 2,780 2,169 Reductions due to lapse of applicable statute of limitations (1,160 ) (1,303 ) Ending balance $ 8,907 $ 7,287

Leases - (Tables)

Leases - (Tables)	12 Months Ended
	Apr. 30, 2020
Leases [Abstract]
Assets And Liabilities, Lessee	Lease right-of-use assets outstanding as of April 30, 2020 consisted of the following (in thousands): Classification April 30, 2020 Operating lease right-of-use assets Other assets $ 21,143 Finance lease right-of-use assets Property and equipment $ 14,583 Weighted average remaining lease terms, weighted average discount rates, and supplementary cash flow information for outstanding leases were as follows: April 30, 2020 Weighted-average remaining lease-term - finance lease 10.9 Weighted-average remaining lease-term - operating lease 20.4 Weighted-average discount rate - finance lease 5.34 % Weighted-average discount rate - operating lease 4.25 % Right-of-use assets obtained in exchange for new finance lease liabilities (in thousands) $ 1,520 Right-of-use assets obtained in exchange for new operating lease liabilities (in thousands) $ 2,840
Finance Lease, Liability, Maturity	Listed below are the aggregate maturities of long-term debt, including finance lease obligations, for the 5 years commencing May 1, 2020 and thereafter: Years ended April 30, Finance Leases Senior Notes Total 2021 $ 2,244 $ 569,000 $ 571,244 2022 2,354 — 2,354 2023 2,484 20,000 22,484 2024 2,060 32,000 34,060 2025 734 32,000 32,734 Thereafter 6,870 616,000 622,870 $ 16,746 $ 1,269,000 $ 1,285,746 April 30, 2020 Weighted-average remaining lease-term - finance lease 10.9 Weighted-average remaining lease-term - operating lease 20.4 Weighted-average discount rate - finance lease 5.34 % Weighted-average discount rate - operating lease 4.25 % Right-of-use assets obtained in exchange for new finance lease liabilities (in thousands) $ 1,520 Right-of-use assets obtained in exchange for new operating lease liabilities (in thousands) $ 2,840 Future minimum payments under the finance leases and operating leases with initial or remaining terms of one year or more consisted of the following at April 30, 2020 and April 30, 2019 : Years ended April 30, 2020 Finance leases Operating leases 2021 $ 3,118 $ 1,829 2022 3,110 1,814 2023 3,116 1,717 2024 2,565 1,683 2025 1,167 1,686 Thereafter 10,764 25,335 Total minimum lease payments 23,840 34,064 Less amount representing interest 7,094 12,468 Present value of net minimum lease payments $ 16,746 $ 21,596 Years ended April 30, 2019 Capital leases Operating leases 2020 $ 3,103 $ 1,703 2021 3,109 1,547 2022 3,096 1,354 2023 3,098 1,228 2024 2,548 1,066 Thereafter 9,215 10,438 Total minimum lease payments 24,169 $ 17,336 Less amount representing interest 7,689 Present value of net minimum lease payments $ 16,480
Lessee, Operating Lease, Liability, Maturity	April 30, 2020 Weighted-average remaining lease-term - finance lease 10.9 Weighted-average remaining lease-term - operating lease 20.4 Weighted-average discount rate - finance lease 5.34 % Weighted-average discount rate - operating lease 4.25 % Right-of-use assets obtained in exchange for new finance lease liabilities (in thousands) $ 1,520 Right-of-use assets obtained in exchange for new operating lease liabilities (in thousands) $ 2,840 Future minimum payments under the finance leases and operating leases with initial or remaining terms of one year or more consisted of the following at April 30, 2020 and April 30, 2019 : Years ended April 30, 2020 Finance leases Operating leases 2021 $ 3,118 $ 1,829 2022 3,110 1,814 2023 3,116 1,717 2024 2,565 1,683 2025 1,167 1,686 Thereafter 10,764 25,335 Total minimum lease payments 23,840 34,064 Less amount representing interest 7,094 12,468 Present value of net minimum lease payments $ 16,746 $ 21,596 Years ended April 30, 2019 Capital leases Operating leases 2020 $ 3,103 $ 1,703 2021 3,109 1,547 2022 3,096 1,354 2023 3,098 1,228 2024 2,548 1,066 Thereafter 9,215 10,438 Total minimum lease payments 24,169 $ 17,336 Less amount representing interest 7,689 Present value of net minimum lease payments $ 16,480

Quarterly Financial Data (Table

Quarterly Financial Data (Tables)	12 Months Ended
	Apr. 30, 2020
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	Year ended April 30, 2020 Q1 Q2 Q3 Q4 Year Total Total revenue Fuel $ 1,627,568 1,514,474 1,376,018 999,352 5,517,412 Grocery and other merchandise 687,918 660,562 582,407 568,080 2,498,966 Prepared food and fountain 295,877 297,846 273,630 229,853 1,097,207 Other 15,266 14,704 16,143 15,598 61,711 $ 2,626,629 2,487,586 2,248,198 1,812,883 9,175,296 Revenue less cost of goods sold excluding depreciation and amortization and credit card fees Fuel $ 150,989 140,798 124,257 198,803 614,847 Grocery and other merchandise 215,453 220,134 191,692 172,862 800,140 Prepared food and fountain 184,012 181,452 164,795 137,833 668,092 Other 15,232 14,681 16,119 15,572 61,605 $ 565,686 557,065 496,863 525,070 2,144,684 Net income $ 85,815 81,981 33,959 62,091 263,846 Income per common share Basic 2.33 2.22 0.92 1.68 7.14 Diluted 2.31 2.21 0.91 1.67 7.10 Year ended April 30, 2019 Q1 Q2 Q3 Q4 Year Total Total revenue Fuel $ 1,647,417 1,621,868 1,233,620 1,345,866 5,848,770 Grocery and other merchandise 644,800 618,250 543,773 562,699 2,369,521 Prepared food and fountain 281,003 283,062 256,144 254,086 1,074,294 Other 15,212 14,825 14,539 15,746 60,325 $ 2,588,432 2,538,005 2,048,076 2,178,397 9,352,910 Revenue less cost of goods sold excluding depreciation and amortization and credit card fees Fuel $ 123,476 118,656 122,559 101,417 466,107 Grocery and other merchandise 208,925 200,193 173,512 177,188 759,817 Prepared food and fountain 174,184 176,675 159,682 158,057 668,598 Other 15,183 14,797 14,512 15,708 60,202 $ 521,768 510,321 470,265 452,370 1,954,724 Net income $ 70,224 66,615 41,835 25,212 203,886 Income per common share Basic 1.92 1.82 1.14 0.69 5.55 Diluted 1.90 1.80 1.13 0.68 5.51

Significant Accounting Polici_4

Significant Accounting Policies (Details) $ in Thousands	12 Months Ended
	Apr. 30, 2020USD ($)peoplestatesegmentmerchandise_categorystore	Apr. 30, 2019USD ($)	Apr. 30, 2018USD ($)	May 01, 2018USD ($)	Apr. 30, 2017USD ($)
Accounting Policies [Abstract]
Number of stores | store	2,207
Number of states in which entity operates | state	16
Population of communities (many less than) | people	5,000
Concentration Risk
Shareholders' equity	$ 1,643,205	$ 1,408,769	$ 1,271,141		$ 1,190,620
Deferred income taxes	435,598	385,788
Excess of current cost over the stated LIFO Value	87,546	80,814
Goodwill	161,075	157,223
Asset impairment charges	1,177	1,167	507
Excise taxes collected	1,063,000	988,000	$ 919,000
Contract liability	11,180	6,931
Recorded asset retirement obligation (net of amortization)	13,416	11,793
Discounted liability of asset retirement obligation	22,658	18,058
Self insurance reserve	$ 44,959	44,334
Number of operating segments | segment	1
Number of reportable segments | segment	1
Number of merchandise categories | merchandise_category	3
Fuel | Retail Sales
Concentration Risk
Concentration risk percentage	60.00%
Grocery and other merchandise | Retail Sales
Concentration Risk
Concentration risk percentage	28.00%
Prepared food and fountain | Retail Sales
Concentration Risk
Concentration risk percentage	12.00%
Accounting Standards Update 2014-09 | GIft Cards
Concentration Risk
Shareholders' equity				$ 879
Deferred income taxes				321
Accounting Standards Update 2014-09 | Box Tops
Concentration Risk
Shareholders' equity				(5,019)
Deferred income taxes				$ (1,816)
Capitalized software costs
Concentration Risk
Finite-lived intangible assets	$ 38,593	$ 27,873
Capitalized software costs | Minimum
Concentration Risk
Intangible asset useful life	3 years
Capitalized software costs | Maximum
Concentration Risk
Intangible asset useful life	13 years

Significant Accounting Polici_5

Significant Accounting Policies - Summary of the Inventory Values (Details) - USD ($) $ in Thousands	Apr. 30, 2020	Apr. 30, 2019
Inventory
Inventory	$ 236,007	$ 273,040
Fuel
Inventory
Inventory	33,695	83,204
Merchandise
Inventory
Inventory	$ 202,312	$ 189,836

Significant Accounting Polici_6

Significant Accounting Policies - Depreciation of Property and Equipment and Amortization of Capital Lease Assets (Details)	12 Months Ended
	Apr. 30, 2020
Buildings | Minimum
Property, Plant and Equipment
Property, plant and equipment useful life	25 years
Buildings | Maximum
Property, Plant and Equipment
Property, plant and equipment useful life	40 years
Machinery and Equipment | Minimum
Property, Plant and Equipment
Property, plant and equipment useful life	5 years
Machinery and Equipment | Maximum
Property, Plant and Equipment
Property, plant and equipment useful life	30 years

Acquisitions (Details)

Acquisitions (Details)	12 Months Ended
	Apr. 30, 2020store
Business Combinations [Abstract]
Number of stores acquired	18
Number of stores opened	11
Number of stores expected to open in next fiscal year	7
Goodwill deductible for income tax purposes period (in years)	15 years

Acquisitions - Allocation of Pu

Acquisitions - Allocation of Purchase Price (Details) - USD ($) $ in Thousands	Apr. 30, 2020	Apr. 30, 2019
Liabilities assumed:
Goodwill	$ 161,075	$ 157,223
Series of Individually Immaterial Business Acquisitions
Assets acquired:
Inventories	680
Property and equipment	28,384
Total assets	29,064
Liabilities assumed:
Accrued expenses	210
Total liabilities	210
Net tangible assets acquired	28,854
Goodwill	3,852
Total consideration paid	$ 32,706

Acquisitions - Summary of Unaud

Acquisitions - Summary of Unaudited Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Business Combinations [Abstract]
Total revenue	$ 9,217,749	$ 9,421,773
Net income	$ 265,233	$ 205,987
Net income per common share
Basic (in Dollars per share)	$ 7.18	$ 5.61
Diluted (in Dollars per share)	$ 7.13	$ 5.57

Fair Value of Financial Instr_3

Fair Value of Financial Instruments and Long Term Debt (Details) - USD ($)	Jan. 31, 2019	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018	Dec. 31, 2018
Debt Instrument
Long-term debt and capital lease obligations		$ 1,341,000,000	$ 1,272,000,000
Interest income		860,000	595,000	$ 1,583,000
Capitalized interest		$ 5,258,000	3,057,000	$ 2,260,000
Promissory Note
Debt Instrument
Interest over variable Index		1.00%
Line of Credit | Revolving Credit Facility
Debt Instrument
Maximum borrowing capacity	$ 300,000,000
Fair value of amount outstanding		$ 120,000,000	$ 75,000,000
Line of Credit | Bank Line
Debt Instrument
Maximum borrowing capacity	25,000				$ 150,000
Letter of Credit | Revolving Credit Facility
Debt Instrument
Maximum borrowing capacity	30,000,000
Bridge Loan | Revolving Credit Facility
Debt Instrument
Maximum borrowing capacity	30,000,000
Bridge Loan | Accordion Feature
Debt Instrument
Maximum borrowing capacity	$ 150,000,000
Minimum | Line of Credit | Revolving Credit Facility
Debt Instrument
Facility fee percentage	0.20%
Maximum | Line of Credit | Revolving Credit Facility
Debt Instrument
Facility fee percentage	0.40%

Fair Value of Financial Instr_4

Fair Value of Financial Instruments and Long Term Debt - Carrying Value of Long-term Debt (Details) $ in Thousands	12 Months Ended
	Apr. 30, 2020USD ($)installment_payment	Apr. 30, 2019USD ($)installment_payment
Debt Instrument
Finance lease liabilities (Note 7)	$ 16,746
Finance lease liabilities (Note 7)		$ 16,480
Long-term debt	1,269,000
Total	1,285,746	1,300,480
Less current maturities (2)	571,244	17,205
Long-term debt and finance lease obligations, net of current maturities	714,502	1,283,275
Debt issuance costs	$ 964	$ 1,171
Senior Notes | 5.72% Senior notes due in 14 installments beginning September 30, 2012 and ending March 30, 2020
Debt Instrument
Interest rate	5.72%	5.72%
Number of payments | installment_payment	14	14
Long-term debt	$ 0	$ 15,000
Senior Notes | 5.22% Senior notes due August 9, 2020 (1)
Debt Instrument
Interest rate	5.22%	5.22%
Long-term debt	$ 569,000	$ 569,000
Senior Notes | 3.67% Senior notes (Series A) due in 7 installments beginning June 17, 2022, and ending June 15, 2028
Debt Instrument
Interest rate	3.67%	3.67%
Number of payments | installment_payment	7	7
Long-term debt	$ 150,000	$ 150,000
Senior Notes | 3.75% Senior notes (Series B) due in 7 installments beginning December 17, 2022 and ending December 18, 2028
Debt Instrument
Interest rate	3.75%	3.75%
Number of payments | installment_payment	7	7
Long-term debt	$ 50,000	$ 50,000
Senior Notes | 3.65% Senior notes (Series C) due in 7 installments beginning May 2, 2025 and ending May 2, 2031
Debt Instrument
Interest rate	3.65%	3.65%
Number of payments | installment_payment	7	7
Long-term debt	$ 50,000	$ 50,000
Senior Notes | 3.72% Senior notes (Series D) due in 7 installments beginning October 28, 2025 and ending October 28, 2031
Debt Instrument
Interest rate	3.72%	3.72%
Number of payments | installment_payment	7	7
Long-term debt	$ 50,000	$ 50,000
Senior Notes | 3.51% Senior notes (Series E) due June 13, 2025
Debt Instrument
Interest rate	3.51%
Long-term debt	$ 150,000	150,000
Senior Notes | 3.77% Senior notes (Series F) due August 22, 2028
Debt Instrument
Interest rate	3.77%
Long-term debt	$ 250,000	$ 250,000

Fair Value of Financial Instr_5

Fair Value of Financial Instruments and Long Term Debt - Schedule of Maturities of Long-Term Debt Including Capitalizied Leases (Details) $ in Thousands	Apr. 30, 2020USD ($)
Finance Leases
2021	$ 2,244
2022	2,354
2023	2,484
2024	2,060
2025	734
Thereafter	6,870
Finance Leases	16,746
Senior Notes
2021	569,000
2022	0
2023	20,000
2024	32,000
2025	32,000
Thereafter	616,000
Senior Notes	1,269,000
Total
2021	571,244
2022	2,354
2023	22,484
2024	34,060
2025	32,734
Thereafter	622,870
Total	$ 1,285,746

Preferred and Common Stock (Det

Preferred and Common Stock (Details) - USD ($)	3 Months Ended	12 Months Ended			15 Months Ended
	Apr. 30, 2020	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018	May 31, 2018	Apr. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award
Shares issued of preferred stock (shares)	0	0	0
Options outstanding (shares)	43,189	43,189
Aggregate intrinsic value of outstanding options	$ 4,622,000	$ 4,622,000
Aggregate intrinsic value of exercised options		$ 7,412,000
Repurchase of common stock			$ 35,247,000	$ 215,434,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Reduction in available shares per stock option issued (shares)	1	1
Options outstanding (shares)	43,189	43,189	109,827	181,673		222,050
Weighted average remaining contractual life (years)		1 year 2 months 1 day
Weighted average exercise price (in Dollars per share)	$ 44.39	$ 44.39	$ 44.39	$ 39.48		$ 38.51
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Reduction in available shares per restricted stock or restricted stock unit issued (shares)	2	2
Stock Options, Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Share-based compensation expense		$ 18,129,000	$ 16,410,000	$ 18,800,000
Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award
Shares available for grant under the Plan (shares)	2,618,194	2,618,194
Unrecognized compensation costs	$ 17,022,000	$ 17,022,000
2017 Stock Repurchase Plan
Share-based Compensation Arrangement by Share-based Payment Award
Share repurchase program authorized amount			300,000,000		$ 300,000,000
Share repurchase program period in force		2 years
Common stock shares repurchased (shares)					2,794,192
2018 Stock Repurchase Plan
Share-based Compensation Arrangement by Share-based Payment Award
Share repurchase program authorized amount			$ 300,000,000
Share repurchase program period in force		2 years
Repurchase of common stock	$ 0
Preferred Stock
Share-based Compensation Arrangement by Share-based Payment Award
Authorized shares of preferred stock (shares)	1,000,000	1,000,000
Shares issued of preferred stock (shares)	0	0
Series A Preferred Stock
Share-based Compensation Arrangement by Share-based Payment Award
Authorized shares of preferred stock (shares)	250,000	250,000
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Authorized shares of common stock (shares)	120,000,000	120,000,000

Preferred and Common Stock- Sch

Preferred and Common Stock- Schedule of Restricted Stock and Restricted Stock Units Granted (Details) - USD ($) $ in Thousands

Dec. 23, 2019

Sep. 04, 2019

Jun. 24, 2019

Jun. 04, 2019

Sep. 05, 2018

Jun. 08, 2018

May 24, 2018

Mar. 29, 2018

Sep. 28, 2017

Jul. 14, 2017

Jun. 01, 2017

Apr. 30, 2020

Apr. 30, 2019

Apr. 30, 2018

Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Shares Granted

189,035

172,232

126,980

Key Employees | Stock Incentive Plan | Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Shares Granted

75,959,000

88,846,000

63,699,000

Fair Value at Grant Date

$ 9,886

$ 8,593

$ 7,388

Officers | Stock Incentive Plan | Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Shares Granted

59,579,000

75,402,000

61,126,000

Fair Value at Grant Date

$ 9,097

$ 7,571

$ 6,912

Award vesting period

3 years

Compensation not yet recognized

$ 3,100

$ 2,600

$ 2,300

Non-Employee Board Members | Stock Incentive Plan | Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Shares Granted

5,504,000

7,984,000

2,150,000

Fair Value at Grant Date

$ 919

$ 920

$ 236

Non-Employee Board Members | Stock Incentive Plan | Restricted Stock

Share-based Compensation Arrangement by Share-based Payment Award

Shares Granted

8,344,000

Fair Value at Grant Date

$ 920

CEO | Stock Incentive Plan | Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Shares Granted

5,000,000

32,786,000

Fair Value at Grant Date

$ 788

$ 5,700

Compensation not yet recognized

$ 1,800

Minimum | Officers | Stock Incentive Plan | Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Target allocation percentage

0.00%

Minimum | CEO | Stock Incentive Plan | Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Target allocation percentage

0.00%

Maximum | Officers | Stock Incentive Plan | Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Target allocation percentage

200.00%

Maximum | CEO | Stock Incentive Plan | Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Target allocation percentage

200.00%

Tranche One | Officers | Stock Incentive Plan | Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Shares Granted

8,444,000

Fair Value at Grant Date

$ 1,368

Tranche Two | Officers | Stock Incentive Plan | Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award

Shares Granted

1,763,000

Fair Value at Grant Date

$ 354

Compensation not yet recognized

$ 177

Preferred and Common Stock - Sc

Preferred and Common Stock - Schedule of Stock Options Activity (Details) - $ / shares	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Number of option shares
Ending balance (in shares)	43,189
Stock Options
Number of option shares
Beginning balance (in shares)	109,827	181,673	222,050
Exercised (in shares)	(66,638)	(71,546)	(40,377)
Forfeited (in shares)		(300)
Ending balance (in shares)	43,189	109,827	181,673
Weighted average option exercise price
Beginning balance (in Dollars per share)	$ 44.39	$ 39.48	$ 38.51
Exercised (in Dollars per share)	44.39	32.02	34.11
Forfeited (in Dollars per share)		25.26
Ending balance (in Dollars per share)	$ 44.39	$ 44.39	$ 39.48

Preferred and Common Stock - _2

Preferred and Common Stock - Schedule of Restricted Stock Units Award Activity (Details) - Restricted Stock Units - shares	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Number of restricted stock units
Beginning balance (in shares)	388,800	338,981	303,400
Granted (in shares)	189,035	172,232	126,980
Vested (in shares)	(108,484)	(104,166)	(88,700)
Forfeited (in shares)	(25,146)	(10,530)	(2,699)
Performance Award Adjustments (in shares)	29,594	(7,717)
Ending balance (in shares)	473,799	388,800	338,981

Net Income Per Common Share - S

Net Income Per Common Share - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 30, 2020	Jan. 31, 2020	Oct. 31, 2019	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Basic
Net income	$ 62,091	$ 33,959	$ 81,981	$ 85,815	$ 25,212	$ 41,835	$ 66,615	$ 70,224	$ 263,846	$ 203,886	$ 317,903
Weighted average shares outstanding-basic (shares)									36,956,115	36,709,940	37,778,304
Basic earnings per common share (in Dollars per share)	$ 1.68	$ 0.92	$ 2.22	$ 2.33	$ 0.69	$ 1.14	$ 1.82	$ 1.92	$ 7.14	$ 5.55	$ 8.41
Diluted
Plus effect of stock options and restricted stock units (shares)									229,713	265,447	353,795
Weighted-average shares outstanding-diluted (shares)									37,185,828	36,975,387	38,132,099
Diluted earnings per common share (in Dollars per share)	$ 1.67	$ 0.91	$ 2.21	$ 2.31	$ 0.68	$ 1.13	$ 1.80	$ 1.90	$ 7.10	$ 5.51	$ 8.34

Income Taxes - Schedule of Comp

Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Current tax expense (benefit):
Federal	$ 22,182	$ 10,326	$ (7,057)
State	6,210	3,853	1,769
Current income tax expense (benefit)	28,392	14,179	(5,288)
Deferred tax expense (benefit)	49,810	45,337	(98,178)
Total income tax expense (benefit)	$ 78,202	$ 59,516	$ (103,466)

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2020	Apr. 30, 2019
Deferred tax assets:
Accrued liabilities and reserves	$ 15,953	$ 11,705
Property and equipment depreciation	27,512	24,661
Workers compensation	8,303	8,277
Deferred compensation	3,781	3,827
Equity compensation	7,083	6,727
State net operating losses & tax credits	424	775
Other	1,335	1,033
Total gross deferred tax assets	64,391	57,005
Less valuation allowance	47	47
Total net deferred tax assets	64,344	56,958
Deferred tax liabilities:
Property and equipment depreciation	(474,829)	(420,710)
Goodwill	(24,348)	(21,560)
Other	(765)	(476)
Total gross deferred tax liabilities	(499,942)	(442,746)
Net deferred tax liability	$ (435,598)	$ (385,788)

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Operating Loss Carryforwards [Line Items]
Valuation allowance	$ 47	$ 47
Unrecognized tax benefits	8,907	7,287	$ 6,421
Unrecognized tax benefits that would impact effective tax rate	7,059
Increase (decrease) in unrecognized tax benefits	1,620
Accrued interest and penalties	354	242
Increase in tax expense	112	$ 51
Decrease in unrecognized tax benefits is reasonable possible	1,800
State
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 97,144

Income Taxes - Schedule of Effe

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Income Tax Disclosure [Abstract]
Income taxes at the statutory rates	21.00%	21.00%	30.40%
Impact of Tax Reform Act	0.00%	0.40%	(80.50%)
Federal tax credits	(1.90%)	(2.30%)	(2.20%)
State income taxes, net of federal tax benefit	4.00%	4.30%	3.70%
Impact of phased-in state law changes, net of federal benefit	(0.20%)	(1.80%)	0.80%
ASU 2016-09 benefit (share based compensation)	(0.50%)	(0.60%)	(0.80%)
Other	0.50%	1.60%	0.30%
Effective income tax rate	22.90%	22.60%	(48.30%)

Income Taxes - Schedule of Unre

Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 7,287	$ 6,421
Additions based on tax positions related to current year	2,780	2,169
Reductions due to lapse of applicable statute of limitations	(1,160)	(1,303)
Ending balance	$ 8,907	$ 7,287

Leases - Assets and Liabilities

Leases - Assets and Liabilities of Lessee (Details) - USD ($) $ in Thousands	Apr. 01, 2019	Apr. 30, 2020
Leases [Abstract]
Operating lease right-of-use assets		$ 21,143
Finance lease right-of-use assets		$ 14,583
Weighted-average remaining lease-term - finance lease		10 years 10 months 24 days
Weighted-average remaining lease-term - operating lease		20 years 4 months 24 days
Weighted-average discount rate - finance lease		5.34%
Weighted-average discount rate - operating lease		4.25%
Right-of-use assets obtained in exchange for new finance lease liabilities (in thousands)		$ 1,520
Right-of-use assets obtained in exchange for new operating lease liabilities (in thousands)	$ 22,635	$ 2,840

Leases - Lease Maturity Schedul

Leases - Lease Maturity Schedule (Details) - USD ($) $ in Thousands	Apr. 30, 2020	Apr. 30, 2019
Finance Leases
2021	$ 3,118
2022	3,110
2023	3,116
2024	2,565
2025	1,167
Thereafter	10,764
Finance Leases	23,840
Less amount representing interest	7,094
Finance lease liabilities (Note 7)	16,746
Operating leases
2021	1,829
2022	1,814
2023	1,717
2024	1,683
2025	1,686
Thereafter	25,335
Total minimum lease payments	34,064
Less amount representing interest	12,468
Present value of net minimum lease payments	$ 21,596
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent
Capital leases
2020		$ 3,103
2021		3,109
2022		3,096
2023		3,098
2024		2,548
Thereafter		9,215
Total minimum lease payments		24,169
Less amount representing interest		7,689
Present value of net minimum lease payments		16,480
Operating leases
2020		1,703
2021		1,547
2022		1,354
2023		1,228
2024		1,066
Thereafter		10,438
Total minimum lease payments		$ 17,336

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	Apr. 30, 2020	Jan. 31, 2020
City of Joplin Missouri
Other Commitments
Bonds issued		$ 51,400
Building and Building Improvements
Other Commitments
Construction in progress	$ 5,505

Benefit Plans (Details)

Benefit Plans (Details) $ in Thousands	12 Months Ended
	Apr. 30, 2020USD ($)executiveshares	Apr. 30, 2019USD ($)shares	Apr. 30, 2018USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block
Accrued deferred compensation liability	$ 3,793	$ 2,870
Expected future payments, 2021	1,511
Expected future payments, 2022	401
Expected future payments, 2023	401
Expected future payments, 2024	401
Expected future payments, 2025	401
Deferred compensation expense incurred	2,727	(97)	$ 131
Other Postretirement Benefits Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block
Employer discretionary contribution	$ 10,571	$ 9,918	9,614
Common stock held by trustee of the 401K plan (shares) | shares	1,113,882	1,261,258
Supplemental Employee Retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block
Number of executives covered under SERP | executive	2
Annual benefit amount (percent of base compensation)	50.00%
Duration of benefits	20 years
Accrued deferred compensation liability	$ 3,434	$ 3,800
Pension and post-retirement expense incurred	269	$ 221	$ 112
Expected future payments, 2021	635
Expected future payments, 2022	635
Expected future payments, 2023	635
Expected future payments, 2024	354
Expected future payments, 2025	$ 354
Minimum | Supplemental Employee Retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block
Discount rate	2.04%	3.78%
Maximum | Supplemental Employee Retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block
Discount rate	2.44%	4.01%

Commitments (Details)

Commitments (Details) $ in Thousands	12 Months Ended
	Apr. 30, 2020USD ($)employee
Other Commitments
Number of other key employees covered by employment agreements | employee	21
Minimum
Other Commitments
Compensation commitment | $	$ 950

Contingencies (Details)

Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Loss Contingency [Abstract]
Accrued environmental liability	$ 328	$ 381
Loss Contingencies [Line Items]
Letters of credit outstanding	21,526
Self insurance reserve	44,959	$ 44,334
General Liability and Auto Liability Insurance
Loss Contingencies [Line Items]
Annual stop loss limit	500
Workers' Compensation Insurance
Loss Contingencies [Line Items]
Annual stop loss limit	$ 350

Quarterly Financial Data - Sche

Quarterly Financial Data - Schedule of Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 30, 2020	Jan. 31, 2020	Oct. 31, 2019	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Total revenue
Total revenue	$ 1,812,883	$ 2,248,198	$ 2,487,586	$ 2,626,629	$ 2,178,397	$ 2,048,076	$ 2,538,005	$ 2,588,432	$ 9,175,296	$ 9,352,910	$ 8,391,124
Gross profit
Gross profit	525,070	496,863	557,065	565,686	452,370	470,265	510,321	521,768	2,144,684	1,954,724
Net income	$ 62,091	$ 33,959	$ 81,981	$ 85,815	$ 25,212	$ 41,835	$ 66,615	$ 70,224	$ 263,846	$ 203,886	$ 317,903
Net income per common share
Basic (in Dollars per share)	$ 1.68	$ 0.92	$ 2.22	$ 2.33	$ 0.69	$ 1.14	$ 1.82	$ 1.92	$ 7.14	$ 5.55	$ 8.41
Diluted (in Dollars per share)	$ 1.67	$ 0.91	$ 2.21	$ 2.31	$ 0.68	$ 1.13	$ 1.80	$ 1.90	$ 7.10	$ 5.51	$ 8.34
Fuel
Total revenue
Total revenue	$ 999,352	$ 1,376,018	$ 1,514,474	$ 1,627,568	$ 1,345,866	$ 1,233,620	$ 1,621,868	$ 1,647,417	$ 5,517,412	$ 5,848,770
Gross profit
Gross profit	198,803	124,257	140,798	150,989	101,417	122,559	118,656	123,476	614,847	466,107
Grocery and other merchandise
Total revenue
Total revenue	568,080	582,407	660,562	687,918	562,699	543,773	618,250	644,800	2,498,966	2,369,521
Gross profit
Gross profit	172,862	191,692	220,134	215,453	177,188	173,512	200,193	208,925	800,140	759,817
Prepared food and fountain
Total revenue
Total revenue	229,853	273,630	297,846	295,877	254,086	256,144	283,062	281,003	1,097,207	1,074,294
Gross profit
Gross profit	137,833	164,795	181,452	184,012	158,057	159,682	176,675	174,184	668,092	668,598
Other
Total revenue
Total revenue	15,598	16,143	14,704	15,266	15,746	14,539	14,825	15,212	61,711	60,325
Gross profit
Gross profit	$ 15,572	$ 16,119	$ 14,681	$ 15,232	$ 15,708	$ 14,512	$ 14,797	$ 15,183	$ 61,605	$ 60,202

Uncategorized Items - casy-2020

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (4,140,000)
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (4,140,000)