CONSOLIDATED STATEMENTS OF INCOME (LOSS) AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
Income Statement [Abstract]
Net revenues	$ 210,951	$ 209,956
Cost of goods sold	119,286	118,900
Gross profit	91,665	91,056
Operating expenses:
Research and development	8,193	11,437
Selling, general and administrative	66,861	87,500
Total operating expenses	75,054	98,937
Operating income (loss)	16,611	(7,881)
Gain on divestiture	8,000	0
Interest and other expense, net	(1,359)	(2,177)
Income (loss) before provision for income taxes	23,252	(10,058)
Provision for income taxes	3,115	288
Net income (loss)	$ 20,137	$ (10,346)
Net earnings (loss) per share - basic (in dollars per share)	$ 0.38	$ (0.20)
Net earnings (loss) per share - diluted (in dollars per share)	$ 0.38	$ (0.20)
Weighted average shares outstanding
Basic (in shares)	52,443	51,021
Diluted (in shares)	52,811	51,021
Comprehensive income (loss)	$ 23,766	$ (11,233)