Interest Income and Other, Net - Components of Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Dec. 31, 2017	Jan. 01, 2017
Other Income and Expenses [Abstract]
Interest income	$ 1,029	$ 746	$ 2,622	$ 2,119
Other income, net	541	(339)	3,878	1,560
Interest income and other, net	$ 1,570	$ 407	$ 6,500	$ 3,679