Net Income Per Share (Calculation of Basic and Diluted Earnings (Loss) Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Numerator:
Net income	$ 76,210	$ 58,173	$ 80,828	$ 53,901
Denominator:
Weighted average shares outstanding (in shares)	58,011	60,472	58,276	60,967
Effect of dilutive securities (in shares)	2,202	1,959	1,984	1,843
Weighted average diluted shares (in shares)	60,213	62,431	60,260	62,810
Basic earnings per share (in dollars per share)	$ 1.31	$ 0.96	$ 1.39	$ 0.88
Diluted earnings per share (in dollars per share)	$ 1.27	$ 0.93	$ 1.34	$ 0.86