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Investment (Income) Expense, Net | 3 Months Ended
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Aug. 31, 2023
Other Income and Expenses [Abstract] |
Investment (Income) Expense, Net | NOTE 5 — INVESTMENT (INCOME) EXPENSE, NET Investment (income) expense, net, consists of the following components:
|  | Three Months Ended |
|  | August 31, |  | August 31, |
(In thousands) |  | 2023 |  | 2022 |
Interest (income) |  | $ | (5,451 | ) | $ | (2,150 | )
Net (gain) loss on marketable securities |  |  | (6,451 | ) |  | 6,606 |
Dividend (income) |  |  | (537 | ) |  | (792 | )
Investment (income) expense, net |  | $ | (12,439 | ) | $ | 3,664 |
Net (Gain) Loss on Marketable Securities
|  | Three Months Ended |
|  | August 31, |  | August 31, |
(In thousands) |  | 2023 |  | 2022 |
Unrealized (gains) losses on marketable equity securities |  | $ | (6,527 | ) | $ | 6,513 |
Realized losses on marketable equity securities |  |  | 45 |  |  | 129 |
Realized losses (gains) on available-for-sale debt securities |  |  | 31 |  |  | (36 | )
Net (gain) loss on marketable securities |  | $ | (6,451 | ) | $ | 6,606 |

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