Net Income (Loss) Per Share (Calculation Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2018	Jun. 24, 2017
Numerator:
Net income (loss)	$ (4,272)	$ 42,912
Denominator:
Weighted average shares outstanding (in shares)	61,462	64,097
Effect of dilutive securities (in shares)	0	3,063
Weighted average diluted shares (in shares)	61,462	67,160
Basic earnings (loss) per share (in dollars per share)	$ (0.07)	$ 0.67
Diluted earnings (loss) per share (in dollars per share)	$ (0.07)	$ 0.64