Fair Value Measurements - Fair Value Hierarchy for Financial Assets Measured at Fair Value on Recurring Basis (Details) (Fair Value, Measurements, Recurring, USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Mar. 30, 2013
Money Market Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	$ 3,724	$ 9,457
Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	20,447	51,443
Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	8,034	29,646
Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	18,550	18,396
Municipal Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	14,461	3,389
Forward purchase or (sale) contracts | Japanese Yen
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	108	176
Forward purchase or (sale) contracts | New Taiwan Dollars
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(5)	(10)
Forward purchase or (sale) contracts | Korean Won
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	33	(46)
Forward purchase or (sale) contracts | Euro
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(129)	100
Forward purchase or (sale) contracts | British Pound
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	29	38
Forward purchase or (sale) contracts | Chinese Renminbi
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(18)	(1)
Forward purchase or (sale) contracts | Singapore Dollar
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(3)	(12)
Level 1 | Money Market Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	3,724	9,457
Level 1 | Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 1 | Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 1 | Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 1 | Municipal Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 1 | Forward purchase or (sale) contracts | Japanese Yen
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 1 | Forward purchase or (sale) contracts | New Taiwan Dollars
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 1 | Forward purchase or (sale) contracts | Korean Won
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 1 | Forward purchase or (sale) contracts | Euro
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 1 | Forward purchase or (sale) contracts | British Pound
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 1 | Forward purchase or (sale) contracts | Chinese Renminbi
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 1 | Forward purchase or (sale) contracts | Singapore Dollar
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 2 | Money Market Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 2 | Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	20,447	51,443
Level 2 | Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	8,034	29,646
Level 2 | Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	18,550	18,396
Level 2 | Municipal Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	14,461	3,389
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	108	176
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	(5)	(10)
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	33	(46)
Level 2 | Forward purchase or (sale) contracts | Euro
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(129)	100
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	29	38
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	(18)	(1)
Level 2 | Forward purchase or (sale) contracts | Singapore Dollar
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets	(3)	(12)
Level 3 | Money Market Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Municipal Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Forward purchase or (sale) contracts | Japanese Yen
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Forward purchase or (sale) contracts | New Taiwan Dollars
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Forward purchase or (sale) contracts | Korean Won
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Forward purchase or (sale) contracts | Euro
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Forward purchase or (sale) contracts | British Pound
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Forward purchase or (sale) contracts | Chinese Renminbi
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets
Level 3 | Forward purchase or (sale) contracts | Singapore Dollar
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value of financial assets