Revenues (Schedule Of Changes In Deferred Revenue) (Details) $ in Thousands	9 Months Ended
	Dec. 28, 2019 USD ($)
Revenues [Abstract]
Balance at March 30, 2019	$ 17,150
Deferral of revenue	13,711
Deferral of revenue from acquisitions	2,823
Recognition of revenue	(14,168)
Balance at December 28, 2019	$ 19,516