Investment Securities Available-for-Sale (Tables)	9 Months Ended
Investment Securities Available-for-Sale (Tables)	Feb. 28, 2026
Investment Securities Available-for-Sale [Abstract]
Schedule of Investment Securities	February 28, 2026 Amortized Cost Unrealized Gains Unrealized Losses Estimated Fair Value Municipal bonds $ 17,494 $ 48 $ — $ 17,542 Commercial paper 20,801 — 6 20,795 Corporate bonds 553,535 2,713 — 556,248 Certificates of deposits 4,055 10 — 4,065 US government and agency obligations 130,573 175 — 130,748 Treasury bills 30,360 10 — 30,370 Total current investment securities $ 756,818 $ 2,956 $ 6 $ 759,768 May 31, 2025 Amortized Cost Unrealized Gains Unrealized Losses Estimated Fair Value Municipal bonds $ 21,695 $ 3 $ — $ 21,698 Commercial paper 90,880 — 50 90,830 Corporate bonds 431,378 130 — 431,508 Certificates of deposits 5,200 — 6 5,194 US government and agency obligations 240,655 — 260 240,395 Treasury bills 103,119 — 36 103,083 Total current investment securities $ 892,927 $ 133 $ 352 $ 892,708
Schedule of Contractual Maturities of Investment Securities	Estimated Fair Value Within one year $ 353,520 1-5 years 406,248 Total $ 759,768

CAL-MAINE FOODS INC 10-Q