Fair Value Measurements - Fair Value Hierarchy for Financial Assets Measured at Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Jun. 27, 2015	Mar. 28, 2015
Money Market Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	$ 2,997	$ 14,280
Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	21,664	15,537
Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets		2,702
Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets		853
Municipal Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	5,853	3,872
Forward purchase or (sale) contracts | Japanese Yen
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	14	(7)
Forward purchase or (sale) contracts | New Taiwan Dollars
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(7)	17
Forward purchase or (sale) contracts | Korean Won
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(77)	(44)
Forward purchase or (sale) contracts | Euro
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(163)	277
Forward purchase or (sale) contracts | British Pound
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	86	(133)
Forward purchase or (sale) contracts | Chinese Renminbi
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(6)	(34)
Level 1 | Money Market Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	2,997	14,280
Level 2 | Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	21,664	15,537
Level 2 | Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets		2,702
Level 2 | Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets		853
Level 2 | Municipal Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	5,853	3,872
Level 2 | Forward purchase or (sale) contracts | Japanese Yen
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	14	(7)
Level 2 | Forward purchase or (sale) contracts | New Taiwan Dollars
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(7)	17
Level 2 | Forward purchase or (sale) contracts | Korean Won
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(77)	(44)
Level 2 | Forward purchase or (sale) contracts | Euro
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(163)	277
Level 2 | Forward purchase or (sale) contracts | British Pound
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	86	(133)
Level 2 | Forward purchase or (sale) contracts | Chinese Renminbi
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	$ (6)	$ (34)