| Document and Entity Information | Oct. 06, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Document Period End Date | Oct. 06, 2023 |
| Entity Registrant Name | Cal-Maine Foods, Inc. |
| Entity File Number | 001-38695 |
| Entity Incorporation State Country Code | DE |
| Entity Tax Identification Number | 64-0500378 |
| Entity Address Address Line 1 | 1052 Highland Colony Pkwy |
| Entity Address Address Line 2 | Suite 200 |
| Entity Address City Or Town | Ridgeland |
| Entity Address State Or Province | MS |
| Entity Address Postal Zip Code | 39157 |
| City Area Code | 601 |
| Local Phone Number | 948-6813 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Central Index Key | 0000016160 |
| Security 12b Title | Common Stock, $0.01 par value per share |
| Trading Symbol | CALM |
| Security Exchange Name | NASDAQ |
| Amendment Flag | true |
| Entity Emerging Growth Company | false |
| Amendment Description | Explanatory Note Cal-Maine Foods, Inc. (the “Company”) is filing this Amendment No. 1 to the Current Report on Form 8-K filed on October 6, 2023 (the “Original Form 8-K”) for the sole purpose of disclosing the Company’s decision regarding how frequently it will conduct future advisory votes on executive compensation. No other changes have been made to the Original Form 8-K. |
