Income Taxes - Reconciliation of Income Tax Expense (Benefit) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Expected income tax expense (benefit) at the statutory rate	$ 19,318	$ (3,136)	$ 21,650
State income taxes, net of federal tax benefit	1,773	(330)	1,581
Tax rate differential on foreign earnings and other international related tax items	(11,195)	(324)	(14,025)
Benefit from research and other credits	(7,360)	(6,764)	(9,210)
Stock-based compensation	2,649	4,759	2,414
Resolution of prior period tax matters	(3,577)	(1,480)	(14,701)
Valuation allowance	2,634	16,433	(301)
Other, net	358	148	888
Income tax expense (benefit), net	$ 4,600us-gaap_IncomeTaxExpenseBenefit	$ 9,306us-gaap_IncomeTaxExpenseBenefit	$ (11,704)us-gaap_IncomeTaxExpenseBenefit

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

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Amount 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 increase (decrease) in the valuation allowance for deferred tax assets.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount 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 revisions of previously reported income tax expense (benefit).

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Amount 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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