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Income Taxes (Tables) | 12 Months Ended
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Mar. 31, 2018
Income Tax Disclosure [Abstract] |
Summary of Income Before Income Taxes | Income before income taxes consisted of (in thousands):
|  | Fiscal Years Ended
|  | March 31, 2018 |  | March 25, 2017 |  | March 26, 2016
U.S. |  | $ | 91,220 |  |  | $ | 137,654 |  |  | $ | 108,133 |
Non-U.S. |  | 173,879 |  |  | 177,393 |  |  | 67,856 |
|  | $ | 265,099 |  |  | $ | 315,047 |  |  | $ | 175,989 |
Summary of Provision (Benefit) for Income Taxes | The provision (benefit) for income taxes consists of (in thousands):
|  | Fiscal Years Ended
|  | March 31, 2018 |  | March 25, 2017 |  | March 26, 2016
Current: |  |  |  |  |  |
U.S. |  | $ | 66,082 |  |  | $ | 28,940 |  |  | $ | 28,313 |
Non-U.S. |  | 21,812 |  |  | 7,234 |  |  | 703 |
Total current tax provision |  | $ | 87,894 |  |  | $ | 36,174 |  |  | $ | 29,016 |
Deferred: |  |  |  |  |  |
U.S. |  | 19,309 |  |  | 2,576 |  |  | 18,242 |
Non-U.S. |  | (4,099 | ) |  | 15,088 |  |  | 5,101 |
Total deferred tax provision |  | 15,210 |  |  | 17,664 |  |  | 23,343 |
Total tax provision |  | $ | 103,104 |  |  | $ | 53,838 |  |  | $ | 52,359 |
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 31, 2018 |  | March 25, 2017 |  | March 26, 2016
U.S. federal statutory rate |  | 31.6 |  |  | 35.0 |  |  | 35.0 |
Foreign income taxed at different rates |  | (8.9 | ) |  | (8.6 | ) |  | (0.6 | )
Transition tax on deferred foreign income |  | 20.3 |  |  | — |  |  | — |
Remeasurement of U.S. deferred tax balance |  | 2.3 |  |  | — |  |  | — |
Research and development tax credits |  | (2.5 | ) |  | (1.8 | ) |  | (5.6 | )
Stock based compensation |  | (4.5 | ) |  | (7.3 | ) |  | — |
Other |  | 0.6 |  |  | (0.2 | ) |  | 1.0 |
Effective tax rate |  | 38.9 |  |  | 17.1 |  |  | 29.8 |
Significant Components of Deferred Tax Assets and Liabilities | Significant components of our deferred tax assets and liabilities as of March 31, 2018 and March 25, 2017 are (in thousands):
|  | March 31, 2018 |  | March 25, 2017
Deferred tax assets: |  |  |  |
Accrued expenses and allowances |  | $ | 5,793 |  |  | $ | 9,002 |
Net operating loss carryforwards |  | 3,646 |  |  | 6,294 |
Research and development tax credit carryforwards |  | 12,701 |  |  | 13,977 |
Stock based compensation |  | 14,156 |  |  | 17,356 |
Other |  | 2,402 |  |  | 9,141 |
Total deferred tax assets |  | $ | 38,698 |  |  | $ | 55,770 |
Valuation allowance for deferred tax assets |  | (14,671 | ) |  | (12,570 | )
Net deferred tax assets |  | $ | 24,027 |  |  | $ | 43,200 |
Deferred tax liabilities: |  |  |  |
Depreciation and amortization |  | $ | 9,184 |  |  | $ | 13,837 |
Acquisition intangibles |  | 13,427 |  |  | 16,301 |
Total deferred tax liabilities |  | $ | 22,611 |  |  | $ | 30,138 |
Total net deferred tax assets |  | $ | 1,416 |  |  | $ | 13,062 |
Reconciliation of Unrecognized Tax Benefits | The following table summarizes the changes in the unrecognized tax benefits (in thousands):
|  | March 31, 2018 |  | March 25, 2017
Beginning balance |  | $ | 30,858 |  |  | $ | 18,796 |
Additions based on tax positions related to the current year |  | 26,602 |  |  | 12,127 |
Reductions based on tax positions related to the prior years |  | (2,296 | ) |  | (65 | )
Ending balance |  | $ | 55,164 |  |  | $ | 30,858 |

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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