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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2018
Income Tax Disclosure [Abstract] |
Schedule of Income before Income Tax, Domestic and Foreign | The following is a geographical breakdown of income (loss) before the provision for income taxes:
| Year Ended December 31,
| 2018 |  | 2017 (1) |  | 2016 (1)
| (In thousands)
Domestic | $ | 46,528 |  |  | $ | 25,280 |  |  | $ | 16,395 |
Foreign | (10,912 | ) |  | (20,768 | ) |  | (3,419 | )
Income (loss) before provision for income taxes | $ | 35,616 |  |  | $ | 4,512 |  |  | $ | 12,976 |
___________________________________________
(1) | As adjusted for full retrospective adoption of ASC 606.
Schedule of Components of Income Tax Expense (Benefit) | The provision for (benefit from) income taxes consisted of the following:
| Year Ended December 31,
| 2018 |  | 2017 (1) |  | 2016 (1)
| (In thousands)
Current: |  |  |  |  |
Federal | $ | 1,404 |  |  | $ | 2,430 |  |  | $ | 6,724 |
State | 1,832 |  |  | 1,852 |  |  | 1,323 |
Foreign | 768 |  |  | 745 |  |  | 46 |
Total current income taxes | 4,004 |  |  | 5,027 |  |  | 8,093 |
Deferred: |  |  |  |  |
Federal | 5,455 |  |  | (19,822 | ) |  | 1,846 |
State | (909 | ) |  | (3,430 | ) |  | (1,255 | )
Foreign | (10,663 | ) |  | (7,781 | ) |  | (5,464 | )
Total deferred income taxes | (6,117 | ) |  | (31,033 | ) |  | (4,873 | )
Total provision for (benefit from) income taxes | $ | (2,113 | ) |  | $ | (26,006 | ) |  | $ | 3,220 |
___________________________________________
(1) | As adjusted for full retrospective adoption of ASC 606.
Schedule of Effective Income Tax Rate Reconciliation | The provision for (benefit from) income taxes differs from the amount computed by applying the statutory federal tax rate as follows:
| Year Ended December 31,
| 2018 |  | 2017 (1) |  | 2016 (1)
| (In thousands)
U.S. federal tax provision at statutory rate | $ | 7,479 |  |  | $ | 1,579 |  |  | $ | 4,542 |
State taxes | 651 |  |  | 224 |  |  | 236 |
Non-deductible expenses | 1,424 |  |  | 1,373 |  |  | 1,212 |
Acquisition costs | — |  |  | — |  |  | 845 |
Share-based compensation expense | 414 |  |  | 39 |  |  | 1,941 |
Research tax credits | (3,230 | ) |  | (3,233 | ) |  | (2,075 | )
Domestic production deduction | — |  |  | (621 | ) |  | (890 | )
Restructuring impact | (4,205 | ) |  | — |  |  | — |
Foreign derived intangible income deduction | (349 | ) |  | — |  |  | — |
Tax audit settlement | — |  |  | — |  |  | (2,499 | )
Foreign rate differential | 561 |  |  | 938 |  |  | (154 | )
Stock option tax benefit | (4,419 | ) |  | (5,926 | ) |  | — |
One-time impact of the Tax Act | — |  |  | (20,005 | ) |  | — |
Other | (439 | ) |  | (374 | ) |  | 62 |
Total provision for (benefit from) income taxes | $ | (2,113 | ) |  | $ | (26,006 | ) |  | $ | 3,220 |
___________________________________________
(1) | As adjusted for full retrospective adoption of ASC 606.
Schedule of Deferred Tax Assets and Liabilities | Significant components of the Company’s deferred tax assets (liabilities) were as follows:
| December 31, 2018 |  | December 31, 2017 (1)
| (In thousands)
Deferred tax assets (liabilities): |  |  |
Deferred revenues | $ | 2,943 |  |  | $ | 127 |
Share-based compensation | 5,531 |  |  | 4,460 |
Inventory related items | 2,874 |  |  | 2,441 |
Tax credit carryforwards | 7,413 |  |  | 9,349 |
Reserves and accruals | 5,983 |  |  | 3,960 |
Loss carryforwards | 17,515 |  |  | 8,643 |
Other, net | 81 |  |  | 1,307 |
Gross deferred tax assets | 42,340 |  |  | 30,287 |
Valuation allowance | (1,256 | ) |  | — |
Total net deferred tax assets | 41,084 |  |  | 30,287 |
Intangibles | (32,304 | ) |  | (36,780 | )
Depreciation and amortization | (22,504 | ) |  | (14,338 | )
Prepaid expenses | (12,563 | ) |  | (11,161 | )
Total deferred tax liabilities | (67,371 | ) |  | (62,279 | )
Net deferred tax liabilities | $ | (26,287 | ) |  | $ | (31,992 | )
___________________________________________
(1) | As adjusted for full retrospective adoption of ASC 606.
Schedule of Unrecognized Tax Benefits | The aggregate change in the balance of gross unrecognized tax benefits, which excludes interest and penalties, for the three years ended December 31, 2018 was as follows:
| (In thousands)
Year Ended December 31, 2015 | $ | 9,150 |
Increases related to tax positions taken during a prior period | 244 |
Decreases related to tax positions taken during the prior period | (1,980 | )
Increases related to tax positions taken during the current period | 6,724 |
Decreases related to settlements | (2,178 | )
Decreases related to expiration of statute of limitations | (344 | )
Year Ended December 31, 2016 | 11,616 |
Increases related to tax positions taken during a prior period | 503 |
Decreases related to tax positions taken during the prior period | (1,782 | )
Increases related to tax positions taken during the current period | 805 |
Decreases related to settlements | — |
Decreases related to expiration of statute of limitations | (401 | )
Year Ended December 31, 2017 | 10,741 |
Increases related to tax positions taken during a prior period | 19 |
Decreases related to tax positions taken during the prior period | (1,257 | )
Increases related to tax positions taken during the current period | 870 |
Decreases related to settlements | — |
Decreases related to expiration of statute of limitations | (412 | )
Year Ended December 31, 2018 | $ | 9,961 |

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