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. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 23, 2017	Jun. 24, 2017	Mar. 30, 2019	Mar. 31, 2018	Mar. 25, 2017
Quarterly Financial Data [Abstract]
Net sales	$ 240,441	$ 324,295	$ 366,305	$ 254,483	$ 303,173	$ 482,741	$ 425,537	$ 320,735	$ 1,185,524	$ 1,532,186	$ 1,538,940
Gross profit	124,639	163,180	185,119	124,559	152,630	235,088	211,282	161,716	597,497	760,716	757,815
Net income	$ 6,157	$ 29,933	$ 58,173	$ (4,272)	$ 12,004	$ 33,779	$ 73,300	$ 42,912	$ 89,991	$ 161,995	$ 261,209
Basic income per share (in dollars per share)	$ 0.10	$ 0.50	$ 0.96	$ (0.07)	$ 0.19	$ 0.53	$ 1.16	$ 0.67	$ 1.50	$ 2.55	$ 4.12
Diluted income per share (in dollars per share)	$ 0.10	$ 0.49	$ 0.93	$ (0.07)	$ 0.19	$ 0.52	$ 1.10	$ 0.64	$ 1.46	$ 2.46	$ 3.92