Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Dec. 24, 2016	Dec. 26, 2015	Dec. 24, 2016	Dec. 26, 2015
Consolidated Condensed Statements of Comprehensive Income [Abstract]
Net income	$ 122,041	$ 41,384	$ 226,151	$ 109,618
Other comprehensive income (loss), before tax
Foreign currency translation	(500)	(4)	(247)	174
Unrealized gain (loss) on marketable securities	40	(104)	31	(183)
Actuarial loss on pension plan	(2,646)		(2,646)
Reclassification of actuarial (gain) loss to net income	(27)	17	(80)	49
Benefit for income taxes	461	37	481	51
Comprehensive income	$ 119,369	$ 41,330	$ 223,690	$ 109,709

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 before tax and 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 before tax of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) related to pension and other postretirement benefit plans.

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities and unrealized holding gain (loss) related to transfers of securities into the available-for-sale classification and out of the held-to-maturity classification.

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Amount before 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 of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.

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