v3.22.2.2
Cover Page
Aug. 30, 2022
Cover [Abstract]  
Document Type 8-K
Entity Registrant Name CASEY'S GENERAL STORES, INC.
Entity Incorporation, State or Country Code IA
Entity File Number 001-34700
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
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, no par value per share
Trading Symbol CASY
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Entity Central Index Key 0000726958
Amendment Flag false
Document Period End Date Aug. 30, 2022