Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Mar. 25, 2017	Dec. 24, 2016	Sep. 24, 2016	Jun. 25, 2016	Mar. 25, 2017	Mar. 26, 2016	Mar. 28, 2015
Income Taxes [Line Items]
Share based compensation, excess tax benefits, amount	$ 1,900	$ 10,800	$ 8,000	$ 2,200	$ 22,900
Increase (decrease) in valuation allowance					1,800
Net operating loss included in deferred tax assets	6,294				6,294	$ 24,592
Alternative minimum tax operating loss carryforwards	8,500				8,500
Undistributed earnings in foreign subsidiaries	201,300				201,300
Unrecognized deferred tax liability on undistributed earnings	65,500				65,500
Ending balance	30,858				30,858	18,796
Decrease in Unrecognized Tax Benefits is Reasonably Possible	2,300				2,300
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions					12,127	12,592
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions						6,204
Interest and penalties incurred during period					200	$ 0	$ 0
Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	12,900				12,900
State [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	44,700				44,700
Research Tax Credit Carryforward [Member] | Federal [Member]
Income Taxes [Line Items]
Tax credit carryforward	4,000				4,000
Research Tax Credit Carryforward [Member] | State [Member]
Income Taxes [Line Items]
Tax credit carryforward	$ 15,400				$ 15,400