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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 12 Months Ended
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Dec. 31, 2020
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following tables present the components of accumulated other comprehensive income (loss) income and items reclassified out of accumulated other comprehensive income (loss) income into earnings:
| Year Ended December 31, 2020
| Foreign Currency Translation Adjustment |  | Unrealized Gains On Available-For-Sale Debt Securities |  | Accumulated Other Comprehensive (Loss) Income
| (In thousands)
Balance at January 1 | $ | (1,379) |  |  | $ | — |  |  | $ | (1,379) |
Other comprehensive income | 6,016 |  |  | — |  |  | 6,016 |
Net current period other comprehensive income | 6,016 |  |  | — |  |  | 6,016 |
Balance at December 31 | $ | 4,637 |  |  | $ | — |  |  | $ | 4,637 |
| Year Ended December 31, 2019
| Foreign Currency Translation Adjustment |  | Unrealized Gains On Available-For-Sale Debt Securities |  | Accumulated Other Comprehensive (Loss) Income
| (In thousands)
Balance at January 1 | $ | (1,864) |  |  | $ | 3 |  |  | $ | (1,861) |
Other comprehensive income (loss) before reclassifications | 485 |  |  | (3) |  |  | 482 |
Net current period other comprehensive income (loss) | 485 |  |  | (3) |  |  | 482 |
Balance at December 31 | $ | (1,379) |  |  | $ | — |  |  | $ | (1,379) |
| Year Ended December 31, 2018
| Foreign Currency Translation Adjustment |  | Unrealized Gains On Available-For-Sale Debt Securities |  | Accumulated Other Comprehensive Income (Loss)
| (In thousands)
Balance at January 1 | $ | 2,232 |  |  | $ | — |  |  | $ | 2,232 |
Other comprehensive (loss) income before reclassifications | (4,044) |  |  | 3 |  |  | (4,041) |
Amounts reclassified to earnings | (52) |  |  | — |  |  | (52) |
Net current period other comprehensive loss | (4,096) |  |  | 3 |  |  | (4,093) |
Balance at December 31 | $ | (1,864) |  |  | $ | 3 |  |  | $ | (1,861) |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: 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=121641772&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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