CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Apr. 01, 2018	Apr. 02, 2017	Apr. 03, 2016
Cash flows from operating activities:
Net income (loss)	$ (12,136)	$ 110,482	$ 194,737
Adjustments:
Depreciation	28,461	20,830	18,346
Amortization of intangible assets	46,726	23,653	15,354
Amortization of debt issuance cost and debt discount	14,831	13,320	5,354
Asset impairments	2,016	2,180	0
Gain on sale of property, plant and equipment	0	0	(325)
Net gain from divestitures	0	(675)	0
Stock-based compensation expense, net of amounts capitalized in inventory	50,783	39,869	34,125
Deferred income tax	68,907	(10,587)	(67,277)
Excess tax benefit from stock-based payment arrangements	0	0	(4,475)
Changes in assets and liabilities, net of acquisitions:
Accounts receivable, net	(4,660)	(16,647)	(1,640)
Inventories	2,103	861	11,719
Prepayments and other assets	4,665	500	2,705
Accounts payable	(6,229)	3,934	6,527
Accrued compensation and related expenses	14,224	(18,895)	(13,312)
Deferred income on shipments to distributors	(1,985)	(5,021)	(8,688)
Income taxes payable and receivable	28,856	231	4,463
Other accrued liabilities and long-term liabilities	(4,386)	4,939	(5,011)
Net cash provided by operating activities	232,176	168,974	192,602
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(237,716)	(1,528)	(279,138)
Asset acquisition	(12,956)	0	0
Cash in escrow related to acquisitions	0	0	2,700
Proceeds from divestitures	0	231	0
Purchases of property, plant and equipment, net	(32,600)	(27,055)	(16,286)
Purchases of intangible assets	(3,581)	(4,896)	(10,800)
Investment in convertible note	0	(1,955)	0
Purchases of non-marketable equity securities	(12,841)	(1,245)	(6,020)
Purchases of short-term investments	(244,977)	(303,722)	(364,029)
Proceeds from sales of short-term investments	149,878	224,028	551,289
Proceeds from maturities of short-term investments	63,472	37,679	96,771
Net cash used in investing activities	(331,321)	(78,463)	(25,513)
Cash flows from financing activities:
Proceeds from issuance of common stock	12,800	17,508	19,722
Repurchases of common stock	(185,309)	(93,507)	(422,262)
Proceeds from issuance of senior convertible notes, net of issuance costs	0	0	363,445
Purchase of convertible note hedge	0	0	(94,185)
Proceeds from issuance of warrants	0	0	56,847
Payment of capital lease obligations	(1,269)	(1,507)	(221)
Proceeds of Initial Term B Loan, net of discount and issuance costs	194,252	0	0
Repayment of loans	(2,000)	0	0
Repayment of loans	0	0	(9,437)
Excess tax benefit from stock-based payment arrangements	0	0	4,475
Net cash provided by (used in) financing activities	18,474	(77,506)	(81,616)
Effect of exchange rates on cash and cash equivalents	2,990	(1,682)	813
Net increase (decrease) in cash and cash equivalents	(77,681)	11,323	86,286
Cash and cash equivalents at beginning of period	214,554	203,231	116,945
Cash and cash equivalents at end of period	136,873	214,554	203,231
Cash paid for:
Interest	11,871	3,370	67
Fees on prepayment of loans	0	0	259
Income taxes, net of refunds	2,856	1,098	996
Non-cash investing and financing activities:
Additions to property, plant and equipment included in accounts payable	2,007	2,616	1,389
Additions to intangible assets included in accounts payable, other accrued liabilities and other long-term liabilities	1,961	0	600
Conversion of investment in convertible notes to ordinary shares of stock	0	(1,955)	(2,020)
Contingent consideration in connection with the asset acquisition included in other accrued liabilities and other long-term liabilities	4,080	0	0
Fair value of partially vested employee equity awards related to pre-combination services that were assumed as part of the business acquisition	$ 3,400	$ 0	$ 0