CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Dec. 28, 2014	Dec. 29, 2013	Dec. 28, 2014	Dec. 29, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 18,358us-gaap_NetIncomeLoss	$ 6,948us-gaap_NetIncomeLoss	$ 54,643us-gaap_NetIncomeLoss	$ 88,335us-gaap_NetIncomeLoss
Other comprehensive income (loss), net of taxes:
Currency translation adjustments, net of tax	(1,562)	(134)	(2,817)	407
Change in net unrealized gain (loss) on investments, net of tax	(576)	218	(592)	107
Actuarial loss on post-employment and post-retirement benefit plans, net of tax	(2)	(1)	(7)	(4)
Total other comprehensive income (loss)	(2,140)	83	(3,416)	510
Comprehensive income	$ 16,218us-gaap_ComprehensiveIncomeNetOfTax	$ 7,031us-gaap_ComprehensiveIncomeNetOfTax	$ 51,227us-gaap_ComprehensiveIncomeNetOfTax	$ 88,845us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit.

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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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