Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Income Statement [Abstract]
Revenue	$ 826,347	$ 620,681	$ 2,389,582	$ 2,002,657
Cost of goods sold	515,705	389,693	1,485,666	1,207,304
Gross profit	310,642	230,988	903,916	795,353
Operating expenses:
Research and development	111,951	105,992	355,166	341,495
Selling, general and administrative	130,672	126,294	412,850	407,016
Other operating expense	6,638	11,915	23,385	43,351
Total operating expenses	249,261	244,201	791,401	791,862
Income (loss) from operations	61,381	(13,213)	112,515	3,491
Interest expense (Note 5)	(14,464)	(7,668)	(45,205)	(8,876)
Interest income	233	519	703	1,383
Other (expense) income	(2,609)	(639)	(3,420)	3,861
Income (loss) before income taxes	44,541	(21,001)	64,593	(141)
Income tax (expense) benefit (Note 6)	(123,179)	9,874	(137,059)	(4,502)
Net loss	$ (78,638)	$ (11,127)	$ (72,466)	$ (4,643)
Net loss per share (Note 2):
Basic	$ (0.62)	$ (0.08)	$ (0.57)	$ (0.03)
Diluted	$ (0.62)	$ (0.08)	$ (0.57)	$ (0.03)
Weighted average shares of common stock outstanding (Note 2):
Basic	126,852	139,343	127,313	144,936
Diluted	126,852	139,343	127,313	144,936