Summary of Significant Accounting Policies (Calculation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 27, 2021	Dec. 26, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 27, 2021	Mar. 28, 2020	Mar. 30, 2019
Numerator:
Net income	$ 25,281	$ 114,368	$ 59,486	$ 18,209	$ 10,158	$ 68,512	$ 76,210	$ 4,618	$ 217,344	$ 159,498	$ 89,991
Denominator:
Weighted average shares outstanding (in shares)									58,106	58,317	60,116
Effect of dilutive securities (in shares)									1,954	2,145	1,467
Weighted average diluted shares (in shares)									60,060	60,462	61,583
Basic earnings per share (in dollars per share)	$ 0.44	$ 1.97	$ 1.02	$ 0.31	$ 0.17	$ 1.18	$ 1.31	$ 0.08	$ 3.74	$ 2.74	$ 1.50
Diluted earnings per share (in dollars per share)	$ 0.42	$ 1.91	$ 0.99	$ 0.30	$ 0.17	$ 1.13	$ 1.27	$ 0.08	$ 3.62	$ 2.64	$ 1.46