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Income Taxes (Narrative) (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 29, 2018 | Mar. 30, 2019 | Mar. 31, 2018 | Mar. 25, 2017
Income Taxes [Line Items] |  |  |  |
U.S. federal statutory rate |  | 21.00% | 31.60% | 35.00%
Effective Income Tax Rate Reconciliation, Tax Cuts And Jobs Act, Percent |  | 11.90% |  |
Provision for one-time transition tax liability and remeasurement of deferred tax balances | $ (11,100,000) |  |  |
Provision for one-time transition tax liability |  | $ 27,000,000 | $ 53,900,000 |
Adjustment to provision for one-time transition tax liability |  | (11,000,000) |  |
Provision for remeasurement of deferred tax balances |  | (100,000) | 6,100,000 |
Increase (decrease) in valuation allowance |  | 3,900,000 |  |
Decrease with no affect on tax expense |  | (200,000) |  |
Net increase affecting tax expense |  | 4,100,000 |  |
Gross unrecognized tax benefits |  | 39,746,000 | 55,164,000 | $ 30,858,000
Unrecognized tax benefits, gross increase |  | 2,204,000 | 26,602,000 |
Gross decrease related to prior year unrecognized tax positions |  | (17,622,000) | (2,296,000) |
Interest and penalties incurred during period |  | 1,500,000 | $ 800,000 |
Federal |  |  |  |
Income Taxes [Line Items] |  |  |  |
Net operating loss carryforwards |  | 9,200,000 |  |
State |  |  |  |
Income Taxes [Line Items] |  |  |  |
Net operating loss carryforwards |  | 22,200,000 |  |
Non-U.S. |  |  |  |
Income Taxes [Line Items] |  |  |  |
Accrued income taxes, foreign withholding |  | 0 |  |
Research Tax Credit Carryforward | State |  |  |  |
Income Taxes [Line Items] |  |  |  |
Tax credit carryforward |  | $ 13,400,000 |  |

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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due. This amount is the total of current and noncurrent accrued income taxes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(15)(1)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(24)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(20)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(15)(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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