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Income Taxes (Tables) | 12 Months Ended
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Mar. 30, 2019
Income Tax Disclosure [Abstract] |
Summary of Income Before Income Taxes | Income before income taxes consisted of (in thousands):
|  | Fiscal Years Ended
|  | March 30, 2019 |  | March 31, 2018 |  | March 25, 2017
U.S. |  | $ | 41,980 |  |  | $ | 91,220 |  |  | $ | 137,654 |
Non-U.S. |  | 51,764 |  |  | 173,879 |  |  | 177,393 |
|  | $ | 93,744 |  |  | $ | 265,099 |  |  | $ | 315,047 |
Summary of Provision (Benefit) for Income Taxes | The provision (benefit) for income taxes consists of (in thousands):
|  | Fiscal Years Ended
|  | March 30, 2019 |  | March 31, 2018 |  | March 25, 2017
Current: |  |  |  |  |  |
U.S. |  | $ | (7,109 | ) |  | $ | 66,082 |  |  | $ | 28,940 |
Non-U.S. |  | 12,428 |  |  | 21,812 |  |  | 7,234 |
Total current tax provision |  | $ | 5,319 |  |  | $ | 87,894 |  |  | $ | 36,174 |
Deferred: |  |  |  |  |  |
U.S. |  | 5,441 |  |  | 19,309 |  |  | 2,576 |
Non-U.S. |  | (7,007 | ) |  | (4,099 | ) |  | 15,088 |
Total deferred tax provision |  | (1,566 | ) |  | 15,210 |  |  | 17,664 |
Total tax provision |  | $ | 3,753 |  |  | $ | 103,104 |  |  | $ | 53,838 |
Summary of Provision (Benefit) for Income Taxes, Statutory Federal Rate Pretax Income Reconciliation | The effective income tax rates differ from the rates computed by applying the statutory federal rate to pretax income as follows (in percentages):
|  | Fiscal Years Ended
|  | March 30, 2019 |  | March 31, 2018 |  | March 25, 2017
U.S. federal statutory rate |  | 21.0 |  |  | 31.6 |  |  | 35.0 |
Foreign income taxed at different rates |  | (2.9 | ) |  | (9.6 | ) |  | (8.7 | )
Transition tax on deferred foreign income |  | (11.8 | ) |  | 20.3 |  |  | — |
Remeasurement of U.S. deferred tax balance |  | (0.1 | ) |  | 2.3 |  |  | — |
Research and development tax credits |  | (6.7 | ) |  | (2.5 | ) |  | (1.8 | )
Stock-based compensation |  | (1.0 | ) |  | (4.5 | ) |  | (7.3 | )
Foreign-derived intangible income deduction |  | (2.8 | ) |  | — |  |  | — |
Current U.S. tax on foreign earnings |  | 2.2 |  |  | 0.7 |  |  | 0.1 |
Change in valuation allowance |  | 4.4 |  |  | — |  |  | — |
Interest related to unrecognized tax benefits |  | 1.6 |  |  | — |  |  | — |
Other |  | 0.1 |  |  | 0.6 |  |  | (0.2 | )
Effective tax rate |  | 4.0 |  |  | 38.9 |  |  | 17.1 |
Significant Components of Deferred Tax Assets and Liabilities | Significant components of our deferred tax assets and liabilities as of March 30, 2019 and March 31, 2018 are (in thousands):
|  | March 30, 2019 |  | March 31, 2018
Deferred tax assets: |  |  |  |
Accrued expenses and allowances |  | $ | 4,024 |  |  | $ | 5,793 |
Net operating loss carryforwards |  | 2,940 |  |  | 3,646 |
Research and development tax credit carryforwards |  | 13,111 |  |  | 12,701 |
Stock-based compensation |  | 14,667 |  |  | 14,156 |
Other |  | 1,261 |  |  | 2,402 |
Total deferred tax assets |  | $ | 36,003 |  |  | $ | 38,698 |
Valuation allowance for deferred tax assets |  | (18,588 | ) |  | (14,671 | )
Net deferred tax assets |  | $ | 17,415 |  |  | $ | 24,027 |
Deferred tax liabilities: |  |  |  |
Depreciation and amortization |  | $ | 8,913 |  |  | $ | 9,184 |
Acquisition intangibles |  | 8,803 |  |  | 13,427 |
Total deferred tax liabilities |  | $ | 17,716 |  |  | $ | 22,611 |
Total net deferred tax assets (liabilities) |  | $ | (301 | ) |  | $ | 1,416 |
Reconciliation of Unrecognized Tax Benefits | The following table summarizes the changes in the unrecognized tax benefits (in thousands):
|  | March 30, 2019 |  | March 31, 2018
Beginning balance |  | $ | 55,164 |  |  | $ | 30,858 |
Additions based on tax positions related to the current year |  | 2,204 |  |  | 26,602 |
Reductions based on tax positions related to the prior years |  | (17,622 | ) |  | (2,296 | )
Ending balance |  | $ | 39,746 |  |  | $ | 55,164 |

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