Net Income Per Share (Calculation Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 23, 2017	Sep. 24, 2016	Sep. 23, 2017	Sep. 24, 2016
Numerator:
Net income	$ 73,300	$ 86,039	$ 116,212	$ 104,110
Denominator:
Weighted average shares outstanding (in shares)	63,431	62,787	63,764	62,618
Effect of dilutive securities (in shares)	2,929	3,623	2,997	3,483
Weighted average diluted shares (in shares)	66,360	66,410	66,761	66,101
Basic earnings per share (in dollars per share)	$ 1.16	$ 1.37	$ 1.82	$ 1.66
Diluted earnings per share (in dollars per share)	$ 1.10	$ 1.30	$ 1.74	$ 1.58