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Other Income (Expense) (Tables) | 12 Months Ended
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Dec. 31, 2020
Other Income (Expense) [Abstract] |
Summary of other Income (expense) | The caption “Other” on the accompanying consolidated statements of operations consists of the following:
|  | Years ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Foreign exchange gain (loss) |  | $ | (4,095 | ) |  | $ | (1,414 | ) |  | $ | (1,991 | )
Interest income |  |  | 3,709 |  |  |  | 8,445 |  |  |  | 11,940 |
Other components of periodic pension expense |  |  | (13,613 | ) |  |  | (13,959 | ) |  |  | (13,118 | )
Investment income (expense) |  |  | 2,271 |  |  |  | 6,448 |  |  |  | (1,646 | )
Other |  |  | (26 | ) |  |  | 61 |  |  |  | (266 | )
|  | $ | (11,754 | ) |  | $ | (419 | ) |  | $ | (5,081 | )

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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