Fair Value Measurements - Fair Value Hierarchy for Financial Assets Measured at Fair Value on Recurring Basis (Details) (USD $)	Sep. 27, 2014	Mar. 29, 2014
Fair Value Measurements - Additional information
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	$ 31,500,000
Fair Value, Measurements, Recurring | Money Market Instruments
Fair Value Measurements - Additional information
Fair value of financial assets	3,235,000	9,456,000
Fair Value, Measurements, Recurring | Commercial Paper
Fair Value Measurements - Additional information
Fair value of financial assets	20,397,000	6,700,000
Fair Value, Measurements, Recurring | Government agencies
Fair Value Measurements - Additional information
Fair value of financial assets	2,002,000	8,037,000
Fair Value, Measurements, Recurring | Corporate Bonds
Fair Value Measurements - Additional information
Fair value of financial assets	5,164,000	17,328,000
Fair Value, Measurements, Recurring | Municipal Bonds
Fair Value Measurements - Additional information
Fair value of financial assets	3,966,000	12,725,000
Fair Value, Measurements, Recurring | Forward purchase or (sale) contracts | Japanese Yen
Fair Value Measurements - Additional information
Fair value of financial assets	113,000	25,000
Fair Value, Measurements, Recurring | Forward purchase or (sale) contracts | New Taiwan Dollars
Fair Value Measurements - Additional information
Fair value of financial assets	21,000	(6,000)
Fair Value, Measurements, Recurring | Forward purchase or (sale) contracts | Korean Won
Fair Value Measurements - Additional information
Fair value of financial assets	(137,000)	(44,000)
Fair Value, Measurements, Recurring | Forward purchase or (sale) contracts | Euro
Fair Value Measurements - Additional information
Fair value of financial assets	411,000	39,000
Fair Value, Measurements, Recurring | Forward purchase or (sale) contracts | British Pound
Fair Value Measurements - Additional information
Fair value of financial assets	(90,000)	(19,000)
Fair Value, Measurements, Recurring | Forward purchase or (sale) contracts | Chinese Renminbi
Fair Value Measurements - Additional information
Fair value of financial assets	(2,000)	(2,000)
Fair Value, Measurements, Recurring | Forward purchase or (sale) contracts | Singapore Dollar
Fair Value Measurements - Additional information
Fair value of financial assets	(17,000)	1,000
Fair Value, Measurements, Recurring | Level 1 | Money Market Instruments
Fair Value Measurements - Additional information
Fair value of financial assets	3,235,000	9,456,000
Fair Value, Measurements, Recurring | Level 1 | Commercial Paper
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Government agencies
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Corporate Bonds
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Municipal Bonds
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Forward purchase or (sale) contracts | Japanese Yen
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Forward purchase or (sale) contracts | New Taiwan Dollars
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Forward purchase or (sale) contracts | Korean Won
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Forward purchase or (sale) contracts | Euro
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Forward purchase or (sale) contracts | British Pound
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Forward purchase or (sale) contracts | Chinese Renminbi
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Forward purchase or (sale) contracts | Singapore Dollar
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 2 | Money Market Instruments
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 2 | Commercial Paper
Fair Value Measurements - Additional information
Fair value of financial assets	20,397,000	6,700,000
Fair Value, Measurements, Recurring | Level 2 | Government agencies
Fair Value Measurements - Additional information
Fair value of financial assets	2,002,000	8,037,000
Fair Value, Measurements, Recurring | Level 2 | Corporate Bonds
Fair Value Measurements - Additional information
Fair value of financial assets	5,164,000	17,328,000
Fair Value, Measurements, Recurring | Level 2 | Municipal Bonds
Fair Value Measurements - Additional information
Fair value of financial assets	3,966,000	12,725,000
Fair Value, Measurements, Recurring | Level 2 | Forward purchase or (sale) contracts | Japanese Yen
Fair Value Measurements - Additional information
Fair value of financial assets	113,000	25,000
Fair Value, Measurements, Recurring | Level 2 | Forward purchase or (sale) contracts | New Taiwan Dollars
Fair Value Measurements - Additional information
Fair value of financial assets	21,000	(6,000)
Fair Value, Measurements, Recurring | Level 2 | Forward purchase or (sale) contracts | Korean Won
Fair Value Measurements - Additional information
Fair value of financial assets	(137,000)	(44,000)
Fair Value, Measurements, Recurring | Level 2 | Forward purchase or (sale) contracts | Euro
Fair Value Measurements - Additional information
Fair value of financial assets	411,000	39,000
Fair Value, Measurements, Recurring | Level 2 | Forward purchase or (sale) contracts | British Pound
Fair Value Measurements - Additional information
Fair value of financial assets	(90,000)	(19,000)
Fair Value, Measurements, Recurring | Level 2 | Forward purchase or (sale) contracts | Chinese Renminbi
Fair Value Measurements - Additional information
Fair value of financial assets	(2,000)	(2,000)
Fair Value, Measurements, Recurring | Level 2 | Forward purchase or (sale) contracts | Singapore Dollar
Fair Value Measurements - Additional information
Fair value of financial assets	(17,000)	1,000
Fair Value, Measurements, Recurring | Level 3 | Money Market Instruments
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Commercial Paper
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Government agencies
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Corporate Bonds
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Municipal Bonds
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Forward purchase or (sale) contracts | Japanese Yen
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Forward purchase or (sale) contracts | New Taiwan Dollars
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Forward purchase or (sale) contracts | Korean Won
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Forward purchase or (sale) contracts | Euro
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Forward purchase or (sale) contracts | British Pound
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Forward purchase or (sale) contracts | Chinese Renminbi
Fair Value Measurements - Additional information
Fair value of financial assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Forward purchase or (sale) contracts | Singapore Dollar
Fair Value Measurements - Additional information
Fair value of financial assets	$ 0	$ 0