Quarterly Results (Unaudited) (Schedule of Unaudited Quarterly Statement of Operations Data) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 28, 2020	Mar. 30, 2019	Mar. 31, 2018
Quarterly Financial Data [Abstract]
Net sales	$ 279,291	$ 374,668	$ 388,912	$ 238,253	$ 240,441	$ 324,295	$ 366,305	$ 254,483	$ 1,281,124	$ 1,185,524	$ 1,532,186
Gross profit	146,235	197,505	207,933	122,494	124,639	163,180	185,119	124,559	674,167	597,497	760,716
Net income (loss)	$ 10,158	$ 68,512	$ 76,210	$ 4,618	$ 6,157	$ 29,933	$ 58,173	$ (4,272)	$ 159,498	$ 89,991	$ 161,995
Basic income (loss) per share (in dollars per share)	$ 0.17	$ 1.18	$ 1.31	$ 0.08	$ 0.10	$ 0.50	$ 0.96	$ (0.07)	$ 2.74	$ 1.50	$ 2.55
Diluted income (loss) per share (in dollars per share)	$ 0.17	$ 1.13	$ 1.27	$ 0.08	$ 0.10	$ 0.49	$ 0.93	$ (0.07)	$ 2.64	$ 1.46	$ 2.46