Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net sales	$ 355,436	$ 259,963	$ 677,697	$ 504,065
Cost of sales	296,436	218,636	563,537	426,706
Gross profit	59,000	41,327	114,160	77,359
Selling, general and administrative expenses	128,069	27,763	173,157	54,562
Operating (loss) income	(69,069)	13,564	(58,997)	22,797
Interest expense, net	827	1,065	1,899	2,165
Other expense	1,307	842	7,720	923
(Loss) income before income taxes	(71,203)	11,657	(68,616)	19,709
Income tax expense	5,822	4,249	9,262	7,038
Net (loss) income	(77,025)	7,408	(77,878)	12,671
Comprehensive (loss) income:
Net (loss) income	(77,025)	7,408	(77,878)	12,671
Foreign currency translation gain (loss)	588	1,382	(107)	2,199
Comprehensive (loss) income	$ (76,437)	$ 8,790	$ (77,985)	$ 14,870
Net (loss) income per share:
Basic	$ (1.42)	$ 0.16	$ (1.53)	$ 0.27
Diluted	$ (1.42)	$ 0.16	$ (1.53)	$ 0.27