Marketable Securities (Schedule of Available-for-sale Securities) (Details) - USD ($) $ in Thousands	Jun. 25, 2016	Mar. 26, 2016
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Value	$ 95,013	$ 81,213
Gross Unrealized Gains	10
Gross Unrealized Losses	(40)	(100)
Amortized Cost	95,043	81,310
Corporate Debt Securities - U.S. [Member]
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Value	58,225	81,213
Gross Unrealized Gains	10	3
Gross Unrealized Losses	(20)	(100)
Amortized Cost	58,235	$ 81,310
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Value	36,788
Gross Unrealized Losses	(20)
Amortized Cost	$ 36,808