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Investment (Income), Net | 6 Months Ended
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Nov. 30, 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 |  |  | Six Months Ended |
|  | November 30, |  |  | November 30, |  |  | November 30, |  |  | November 30, |
(In thousands) |  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Interest (income) |  | $ | (774 | ) |  | $ | (1,429 | ) |  | $ | (1,441 | ) |  | $ | (2,776 | )
Net (gain) on marketable securities |  |  | (8,388 | ) |  |  | (6,939 | ) |  |  | (20,172 | ) |  |  | (10,479 | )
Dividend (income) |  |  | (357 | ) |  |  | (437 | ) |  |  | (668 | ) |  |  | (935 | )
Investment (income), net |  | $ | (9,519 | ) |  | $ | (8,805 | ) |  | $ | (22,281 | ) |  | $ | (14,190 | )
Net (Gain) on Marketable Securities
|  | Three Months Ended |  |  | Six Months Ended |
|  | November 30, |  |  | November 30, |  |  | November 30, |  |  | November 30, |
(In thousands) |  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Unrealized (gains) on marketable equity securities |  | $ | (7,863 | ) |  | $ | (7,062 | ) |  | $ | (21,819 | ) |  | $ | (10,538 | )
Realized (gains) losses on marketable equity securities |  |  | (548 | ) |  |  | 114 |  |  |  | 1,624 |  |  |  | 46 |
Realized losses on available-for-sale debt securities |  |  | 23 |  |  |  | 9 |  |  |  | 23 |  |  |  | 13 |
Net (gain) on marketable securities |  | $ | (8,388 | ) |  | $ | (6,939 | ) |  | $ | (20,172 | ) |  | $ | (10,479 | )

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