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Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2020
Other Comprehensive Income (Loss) [Abstract] |
Changes in Other Comprehensive Income (Loss) | The Company’s changes in other comprehensive income (loss) were as follows (in thousands):
|  | Year Ended December 31 |
|  | 2020 |  |  | 2019 |  |  | 2018 |
|  | Gross Amount |  |  | Income Tax (Provision) Benefit |  |  | Net Amount |  |  | Gross Amount |  |  | Income Tax (Provision) Benefit |  |  | Net Amount |  |  | Gross Amount |  |  | Income Tax Provision |  |  | Net Amount |
Pension and postretirement benefits (a): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of net actuarial loss |  | $ | 1,912 |  |  | $ | (483 | ) |  | $ | 1,429 |  |  | $ | 926 |  |  | $ | (236 | ) |  | $ | 690 |  |  | $ | 2,317 |  |  | $ | (585 | ) |  | $ | 1,732 |
Actuarial gains (losses) |  |  | (31,755 | ) |  |  | 7,006 |  |  |  | (24,749 | ) |  |  | (6,548 | ) |  |  | 1,655 |  |  |  | (4,893 | ) |  |  | 7,322 |  |  |  | (1,416 | ) |  |  | 5,906 |
Adoption of ASU 2018-02 – reclassification to retained earnings |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (7,925 | ) |  |  | (7,925 | )
Foreign currency translation adjustments |  |  | (333 | ) |  |  | — |  |  |  | (333 | ) |  |  | (85 | ) |  |  | — |  |  |  | (85 | ) |  |  | (819 | ) |  |  | — |  |  |  | (819 | )
Total |  | $ | (30,176 | ) |  | $ | 6,523 |  |  | $ | (23,653 | ) |  | $ | (5,707 | ) |  | $ | 1,419 |  |  | $ | (4,288 | ) |  | $ | 8,820 |  |  | $ | (9,926 | ) |  | $ | (1,106 | )
(a) | Actuarial gains (losses) are amortized into other income (expense). (See Note 12 – Retirement Plans)

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- Definition Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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