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Investment (Income), Net | 3 Months Ended
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Aug. 31, 2020
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) |  | 2020 |  |  | 2019 |
Interest (income) |  | $ | (667 | ) |  | $ | (1,348 | )
Net (gain) on marketable securities |  |  | (11,784 | ) |  |  | (3,540 | )
Dividend (income) |  |  | (312 | ) |  |  | (497 | )
Investment (income), net |  | $ | (12,763 | ) |  | $ | (5,385 | )
Net (Gain) on Marketable Securities
|  | Three Months Ended |
|  | August 31, |  |  | August 31, |
(In thousands) |  | 2020 |  |  | 2019 |
Unrealized (gains) on marketable equity securities |  | $ | (13,956 | ) |  | $ | (3,476 | )
Realized (gains) losses on marketable equity securities |  |  | 2,169 |  |  |  | (68 | )
Realized losses on available-for-sale debt securities |  |  | 3 |  |  |  | 4 |
Net (gain) on marketable securities |  | $ | (11,784 | ) |  | $ | (3,540 | )

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