Interest and Other Expense, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Other Income and Expenses [Abstract]
Net interest rate received (paid) from interest rate swap	$ (642)	$ 1,500	$ (1,500)	$ 2,100
Components of interest and other expense
Interest income	17,350	13,832	34,748	27,246
Interest expense	(13,164)	(11,029)	(26,536)	(23,110)
Other income (expense), net	2,222	(972)	(4,651)	(467)
Interest and other expense, net	$ 6,408	$ 1,831	$ 3,561	$ 3,669