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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables) | 6 Months Ended
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Jun. 30, 2020
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Loss | Amounts related to the changes in accumulated other comprehensive loss were as follows (in thousands):
|  | Unrealized Gain (Loss) on Available-for-Sale Securities |  |  | Net Unrealized Gain (Loss) on Retirement Plan (2) |  |  | Change in Cumulative Foreign Currency Translation Adjustment |  |  | Total |  |  | Affected Line Items in the Consolidated Statements of Income
Balance December 31, 2019, net of tax |  | $ | 191 |  |  | $ | (17,167 | ) |  | $ | (21 | ) |  | $ | (16,997 | ) |  |
Other comprehensive gain before reclassification |  |  | 968 |  |  |  | — |  |  |  | (30 | ) |  |  | 938 |  |  |
Reclassification to net income (1) |  |  | — |  |  |  | 1,278 |  |  |  | — |  |  |  | 1,278 |  |  | Selling, general and administrative, research and development and cost of sales
Change during period |  |  | 968 |  |  |  | 1,278 |  |  |  | (30 | ) |  |  | 2,216 |  |  |
Balance June 30, 2020, net of tax |  | $ | 1,159 |  |  | $ | (15,889 | ) |  | $ | (51 | ) |  | $ | (14,781 | ) |  |
|  | Unrealized Gain (Loss) on Available-for-Sale Securities |  |  | Net Unrealized Gain (Loss) on Retirement Plan (2) |  |  | Change in Cumulative Foreign Currency Translation Adjustment |  |  | Total |  |  | Affected Line Items in the Consolidated Statements of Income
Balance December 31, 2018, net of tax |  | $ | 10 |  |  | $ | (16,198 | ) |  | $ | (46 | ) |  | $ | (16,234 | ) |  |
Other comprehensive gain before reclassification |  |  | 151 |  |  |  | — |  |  |  | 9 |  |  |  | 160 |  |  |
Reclassification to net income (1) |  |  | — |  |  |  | 1,269 |  |  |  | — |  |  |  | 1,269 |  |  | Selling, general and administrative, research and development and cost of sales
Change during period |  |  | 151 |  |  |  | 1,269 |  |  |  | 9 |  |  |  | 1,429 |  |  |
Balance June 30, 2019, net of tax |  | $ | 161 |  |  | $ | (14,929 | ) |  | $ | (37 | ) |  | $ | (14,805 | ) |  |
(1) | The Company reclassified amortization of prior service cost and actuarial loss for its retirement plan from accumulated other comprehensive loss to net income of $1.3 million for both six-month periods ended June 30, 2020 and 2019.
(2) | Refer to Note 14: Supplemental Executive Retirement Plan.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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