Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 29, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 58,173	$ 73,300	$ 53,901	$ 116,212
Other comprehensive income (loss), before tax
Foreign currency translation gain (loss)	204	3,021	(1,986)	3,311
Unrealized gain on marketable securities	198	14	239	48
Actuarial gain on pension plan	0	0	0	792
Provision for income taxes	(42)	(1)	(50)	(151)
Comprehensive income	$ 58,533	$ 76,334	$ 52,104	$ 120,212

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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