Income Taxes - Reconciliation of Effective Tax Rate (Details)	12 Months Ended
Apr. 01, 2017	Apr. 02, 2016	Mar. 28, 2015
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal benefit	(0.30%)	(0.50%)	(1.10%)
Tax credits	4.20%	17.10%	4.20%
Domestic production and export tax incentives	(5.90%)	0.00%	0.00%
Non-U.S. income taxed at different rates	(0.90%)	14.30%	2.10%
Changes in unrecognized tax benefits	(0.30%)	(4.10%)	(2.40%)
Change in valuation allowance	(25.00%)	(51.80%)	(32.30%)
Stock compensation	(2.60%)	(10.20%)	(4.20%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount	5.10%	0.00%	0.00%
Other, net	1.00%	0.30%	(2.00%)
Effective tax rate	0.10%	0.10%	(0.70%)

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Name Accounting Standards Codification
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-Section 50
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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