Net Income Per Share (Calculation Of Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Net Income Per Share [Abstract]
Net income	$ 33,367	$ 35,449	$ 54,009	$ 42,376
Weighted average shares outstanding	63,217	64,924	63,329	64,697
Effect of dilutive securities	2,908	4,283	2,874	4,223
Weighted average diluted shares	66,125	69,207	66,203	68,920
Basic earnings per share	$ 0.53	$ 0.55	$ 0.85	$ 0.65
Diluted earnings per share	$ 0.50	$ 0.51	$ 0.82	$ 0.61