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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables) | 9 Months Ended
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Sep. 30, 2019
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 debt 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 |  |  | 178 |  |  |  | — |  |  |  | 34 |  |  |  | 212 |  |  |
Reclassification to net income (1) |  |  | — |  |  |  | 1,903 |  |  |  | — |  |  |  | 1,903 |  |  | Selling, general and administrative, research and development, and cost of sales
Change during period |  |  | 178 |  |  |  | 1,903 |  |  |  | 34 |  |  |  | 2,115 |  |  |
Balance September 30, 2019, net of tax |  | $ | 188 |  |  | $ | (14,295 | ) |  | $ | (12 | ) |  | $ | (14,119 | ) |  |
|  | Unrealized gain (loss) on available-for-sale debt 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, 2017, net of tax |  | $ | (258 | ) |  | $ | (11,169 | ) |  | $ | (37 | ) |  | $ | (11,464 | ) |  |
Other comprehensive gain (loss) before reclassification |  |  | 214 |  |  |  | — |  |  |  | (10 | ) |  |  | 204 |  |  |
Reclassification to net income (1) |  |  | — |  |  |  | 1,266 |  |  |  | — |  |  |  | 1,266 |  |  | Selling, general and administrative, research and development, and cost of sales
Change during period |  |  | 214 |  |  |  | 1,266 |  |  |  | (10 | ) |  |  | 1,470 |  |  |
Balance September 30, 2018, net of tax |  | $ | (44 | ) |  | $ | (9,903 | ) |  | $ | (47 | ) |  | $ | (9,994 | ) |  |
(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 $1.9 million and $1.3 million for the nine months ended September 30, 2019 and 2018, respectively.
(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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