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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2018 | Mar. 25, 2017 | Mar. 26, 2016
Income Taxes [Line Items] |  |  |
Federal blended corporate income tax rate, percent | 31.60% | 35.00% | 35.00%
Provision for one-time transition tax liability and remeasurement of deferred tax balances | $ 60,100 |  |
Provision for remeasurement of deferred tax balances | 6,100 |  |
Provision for one-time transition tax liability | 53,900 |  |
Increase (decrease) in valuation allowance | 2,100 |  |
Gross unrecognized tax benefits | 55,164 | $ 30,858 | $ 18,796
Unrecognized tax benefits, gross increase | 26,602 | 12,127 |
Unrecognized tax benefits, gross decrease | 2,300 |  |
Interest and penalties incurred during period | 800 | $ 200 |
Federal |  |  |
Income Taxes [Line Items] |  |  |
Net operating loss carryforwards | 9,700 |  |
State |  |  |
Income Taxes [Line Items] |  |  |
Net operating loss carryforwards | 35,800 |  |
Research Tax Credit Carryforward | State |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforward | $ 12,700 |  |

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- Definition Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit) + References No definition available. + Details
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- Definition Tax Cuts and Jobs Act, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense + References No definition available. + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
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- Definition The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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