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COMPONENTS OF THE COMPANY'S CONDENSED CONSOLIDATED BALANCE SHEETS (Tables) | 3 Months Ended
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Mar. 31, 2019
Balance Sheet Related Disclosures [Abstract] |
Schedule of Accounts Receivable | Accounts Receivable
(In thousands) | March 31, 2019 |  | December 31, 2018
Accounts receivable trade | $ | 63,340 |  |  | $ | 54,055 |
Allowances for ship and debit | (39,168 | ) |  | (40,118 | )
Allowances for stock rotation and rebate | (3,101 | ) |  | (2,159 | )
Allowances for doubtful accounts | (526 | ) |  | (706 | )
Total | $ | 20,545 |  |  | $ | 11,072 |
Schedule of Inventory, Current | Inventories
(In thousands) | March 31, 2019 |  | December 31, 2018
Raw materials | $ | 40,969 |  |  | $ | 41,138 |
Work-in-process | 21,897 |  |  | 15,612 |
Finished goods | 22,214 |  |  | 24,107 |
Total | $ | 85,080 |  |  | $ | 80,857 |
Schedule of Prepaid Expenses and Other Current Assets | Prepaid Expenses and Other Current Assets
(In thousands) | March 31, 2019 |  | December 31, 2018
Prepaid legal fees | $ | 1,866 |  |  | $ | 181 |
Prepaid income tax | 4,481 |  |  | 3,081 |
Prepaid maintenance agreements | 2,161 |  |  | 2,047 |
Interest receivable | 457 |  |  | 595 |
Advance to suppliers | 3,590 |  |  | 2,157 |
Other | 4,243 |  |  | 3,854 |
Total | $ | 16,798 |  |  | $ | 11,915 |
Schedule Of Intangible Assets | Intangible Assets
| March 31, 2019 |  | December 31, 2018
(In thousands) | Gross |  | Accumulated Amortization |  | Net |  | Gross |  | Accumulated Amortization |  | Net
Domain name | $ | 1,261 |  |  | $ | — |  |  | $ | 1,261 |  |  | $ | 1,261 |  |  | $ | — |  |  | $ | 1,261 |
In-process research and development | 4,690 |  |  | — |  |  | 4,690 |  |  | 4,690 |  |  | — |  |  | 4,690 |
Developed technology | 33,270 |  |  | (23,258 | ) |  | 10,012 |  |  | 33,270 |  |  | (22,464 | ) |  | 10,806 |
Customer relationships | 20,030 |  |  | (16,947 | ) |  | 3,083 |  |  | 20,030 |  |  | (16,520 | ) |  | 3,510 |
Technology licenses | 1,176 |  |  | (149 | ) |  | 1,027 |  |  | 1,000 |  |  | (115 | ) |  | 885 |
Total | $ | 60,427 |  |  | $ | (40,354 | ) |  | $ | 20,073 |  |  | $ | 60,251 |  |  | $ | (39,099 | ) |  | $ | 21,152 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | The estimated future amortization expense related to finite-lived intangible assets at March 31, 2019, is as follows:
Fiscal Year | Estimated Amortization (In thousands)
2019 (remaining nine months) | $ | 3,644 |
2020 | 3,675 |
2021 | 2,809 |
2022 | 1,731 |
2023 | 1,489 |
Thereafter | 774 |
Total (1) | $ | 14,122 |
_______________
(1) | The total above excludes $4.7 million of in-process research and development that will be amortized, upon completion of development, over the estimated useful life of the technology.
Schedule of Accumulated Other Comprehensive Income (Loss) | Changes in accumulated other comprehensive loss for the three months ended March 31, 2019 and 2018, were as follows:
| Unrealized Gains and Losses on Marketable Securities |  | Defined Benefit Pension Items |  | Foreign Currency Items |  | Total
| Three Months Ended |  | Three Months Ended |  | Three Months Ended |  | Three Months Ended
| March 31, |  | March 31, |  | March 31, |  | March 31,
(In thousands) | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Beginning balance | $ | (266 | ) |  | $ | (427 | ) |  | $ | (712 | ) |  | $ | (1,237 | ) |  | $ | (711 | ) |  | $ | (475 | ) |  | $ | (1,689 | ) |  | $ | (2,139 | )
Other comprehensive income (loss) before reclassifications | 334 |  |  | (238 | ) |  | — |  |  | — |  |  | (22 | ) |  | (37 | ) |  | 312 |  |  | (275 | )
Amounts reclassified from accumulated other comprehensive loss | — |  |  | — |  |  | 16 |  | (1 | ) | 32 |  | (1 | ) | — |  |  | — |  |  | 16 |  |  | 32 |
Net-current period other comprehensive income (loss) | 334 |  |  | (238 | ) |  | 16 |  |  | 32 |  |  | (22 | ) |  | (37 | ) |  | 328 |  |  | (243 | )
Ending balance | $ | 68 |  |  | $ | (665 | ) |  | $ | (696 | ) |  | $ | (1,205 | ) |  | $ | (733 | ) |  | $ | (512 | ) |  | $ | (1,361 | ) |  | $ | (2,382 | )
_______________
(1) | This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost for the three months ended March 31, 2019 and 2018.

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