CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Income Statement [Abstract]
Net revenues	$ 252,566	$ 241,581	$ 491,017	$ 470,928
Cost of goods sold	125,566	129,674	248,111	275,777
Gross profit	127,000	111,907	242,906	195,151
Operating expenses:
Research and development	7,422	8,583	14,909	17,989
Selling, general and administrative	69,839	77,248	142,839	145,793
Impairment of assets	0	0	48,721	0
Total operating expenses	77,261	85,831	206,469	163,782
Operating income	49,739	26,076	36,437	31,369
Interest and other expense, net	(4,651)	(3,039)	(9,074)	(5,017)
Income before provision (benefit) for income taxes	45,088	23,037	27,363	26,352
Provision (benefit) for income taxes	7,602	4,311	(1,644)	10,445
Net income	$ 37,486	$ 18,726	$ 29,007	$ 15,907
Basic income (loss) per share (in dollars per share)	$ 0.74	$ 0.36	$ 0.57	$ 0.31
Diluted income (loss) per share (in dollars per share)	$ 0.72	$ 0.35	$ 0.56	$ 0.30
Weighted average shares outstanding
Basic (in shares)	50,791	51,605	50,901	51,862
Diluted (in shares)	52,046	53,138	52,174	53,365
Comprehensive income	$ 35,378	$ 18,403	$ 23,281	$ 10,865