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. 29, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Numerator:
Net income	$ 58,173	$ 73,300	$ 53,901	$ 116,212
Denominator:
Weighted average shares outstanding (in shares)	60,472	63,431	60,967	63,764
Effect of dilutive securities (in shares)	1,959	2,929	1,843	2,997
Weighted average diluted shares (in shares)	62,431	66,360	62,810	66,761
Basic earnings per share (in dollars per share)	$ 0.96	$ 1.16	$ 0.88	$ 1.82
Diluted earnings per share (in dollars per share)	$ 0.93	$ 1.10	$ 0.86	$ 1.74