Interest and Other Expense, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Components of interest and other expense
Interest income	$ 8,392	$ 5,363	$ 16,893	$ 10,966
Interest expense	(13,845)	(13,047)	(27,710)	(26,906)
Other income (expense), net	(278)	(3,313)	(1,136)	(4,987)
Interest and other expense, net	$ (5,731)	$ (10,997)	$ (11,953)	$ (20,927)