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Other, Net | 12 Months Ended
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Dec. 31, 2020
Other Income And Expenses [Abstract] |
Other, Net | 8. Other, Net Other, net in the Consolidated Statements of Income included the following for the years ended December 31, 2020, 2019 and 2018:
(In thousands) |  | 2020 |  |  | 2019 |  |  | 2018 |
Foreign exchange gains |  | $ | 1,367 |  |  | $ | 123 |  |  | $ | 1,902 |
Investment income |  |  | 1,681 |  |  |  | 968 |  |  |  | 1,554 |
Realized and unrealized gains (losses) on investments |  |  | 3,143 |  |  |  | 3,955 |  |  |  | (2,966 | )
Net periodic benefit cost |  |  | (874 | ) |  |  | (351 | ) |  |  | (1,215 | )
Gain on sale of asset |  |  | — |  |  |  | 570 |  |  |  | — |
Other retirement obligation |  |  | (363 | ) |  |  | (694 | ) |  |  | — |
Other, net |  | $ | 4,954 |  |  | $ | 4,571 |  |  | $ | (725 | )

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- Definition The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -URI http://asc.fasb.org/topic&trid=2122503 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 610 -URI http://asc.fasb.org/topic&trid=49130413 + Details
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