Fair Value Measurements (Tables)

9 Months Ended

Feb. 28, 2025

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis and Categorized using Fair Value Hierarchy

The following tables present our assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy.

(In thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value at February 28, 2025
Available-for-sale debt securities:
U.S. Treasury and other government	$	-	$	23,647	$	-	$	23,647
Corporate bonds		-		126		-		126
Total available-for-sale debt securities		-		23,773		-		23,773
Marketable equity securities:
Stocks – foreign		1,711		-		-		1,711
Stocks – domestic		10,870		-		-		10,870
Mutual funds – foreign		-		44,655		-		44,655
Mutual funds – domestic		-		98,295		-		98,295
Total marketable equity securities		12,581		142,950		-		155,531
Total	$	12,581	$	166,723	$	-	$	179,304

(In thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)			Fair Value at May 31, 2024
Available-for-sale debt securities:
U.S. Treasury and other government	$	-	$	26,559	$	-		$	26,559
Corporate bonds		-		138		-			138
Total available-for-sale debt securities		-		26,697		-			26,697
Marketable equity securities:
Stocks – foreign		1,518		-		-			1,518
Stocks – domestic		9,028		-		-			9,028
Mutual funds – foreign		-		39,114		-			39,114
Mutual funds – domestic		-		77,966		-			77,966
Total marketable equity securities		10,546		117,080		-			127,626
Contingent consideration		-		-		(2,229	)		(2,229	)
Total	$	10,546	$	143,777	$	(2,229	)	$	152,094

Fair Value and Carrying Value of Long-Term Debt

Based on the analysis performed, the fair value and the carrying value of our long-term debt as of February 28, 2025 and May 31, 2024 is as follows:

	At February 28, 2025
(In thousands)	Carrying Value		Fair Value
Long-term debt, including current portion	$	2,097,239	$	2,008,677
	At May 31, 2024
(In thousands)	Carrying Value		Fair Value
Long-term debt, including current portion		2,127,148		1,979,359