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OTHER INCOME (EXPENSE) (Tables) | 12 Months Ended
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Dec. 31, 2018
Other Income and Expenses [Abstract] |
Interest and Other Income [Table Text Block] | Other income (expense) consisted of the following for the years set forth below (amounts in thousands):
| 2018 |  | 2017 |  | 2016
Equity investment income | $ | 3,993 |  |  | $ | 3,615 |  |  | $ | 2,977 |
Interest income | 2,107 |  |  | 3,363 |  |  | 3,206 |
Building rental income | 1,804 |  |  | 2,372 |  |  | 2,109 |
Investment gain related to investments for deferred compensation | 687 |  |  | 2,725 |  |  | 190 |
Other income (expense) | 10,607 |  |  | (2,967 | ) |  | 1,433 |
| $ | 19,198 |  |  | $ | 9,108 |  |  | $ | 9,915 |

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