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Investment (Income), Net | 3 Months Ended
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Aug. 31, 2021
Other Income And Expenses [Abstract] |
Investment (Income), Net | NOTE 6 — INVESTMENT (INCOME), NET Investment (income), net, consists of the following components:
|  | Three Months Ended |
|  | August 31, |  |  | August 31, |
(In thousands) |  | 2021 |  |  | 2020 |
Interest (income) |  | $ | (1,153 | ) |  | $ | (667 | )
Net (gain) on marketable securities |  |  | (3,476 | ) |  |  | (11,784 | )
Dividend (income) |  |  | (1,121 | ) |  |  | (312 | )
Investment (income), net |  | $ | (5,750 | ) |  | $ | (12,763 | )
Net (Gain) on Marketable Securities
|  | Three Months Ended |
|  | August 31, |  |  | August 31, |
(In thousands) |  | 2021 |  |  | 2020 |
Unrealized (gains) on marketable equity securities |  | $ | (3,218 | ) |  | $ | (13,956 | )
Realized (gains) losses on marketable equity securities |  |  | (269 | ) |  |  | 2,169 |
Realized losses on available-for-sale debt securities |  |  | 11 |  |  |  | 3 |
Net (gain) on marketable securities |  | $ | (3,476 | ) |  | $ | (11,784 | )

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