Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 03, 2016	Apr. 03, 2016	Mar. 29, 2015	Oct. 31, 2015
Deferred tax assets:
Deferred income on shipments to distributors	$ 2,016	$ 2,016	$ 3,057
Non-deductible accruals and reserves	19,432	19,432	9,337
Net operating losses and credit carryforwards	112,380	112,380	122,178
Depreciation and amortization	14,473	14,473	12,274
Stock options	3,262	3,262	1,849
Other	1,747	1,747	1,737
Total deferred tax assets	153,310	153,310	150,432
Deferred tax liabilities:
Purchased intangibles	(38,318)	(38,318)	(564)
Other	(10,975)	(10,975)	(2,699)
Total deferred tax liabilities	(49,293)	(49,293)	(3,263)
Valuation allowance	(62,800)	(62,800)	(148,954)
Net deferred tax assets (liabilities)	41,217	41,217
Net deferred tax assets (liabilities)			(1,785)
Change in valuation allowance for deferred tax assets	(61,700)	86,200	$ 5,300
Amount of net tax benefits related to stock compensation benefits not recorded as DTAs	26,800	26,800
Net deferred tax liability associated with convertible notes				$ 900
Research
Deferred tax liabilities:
Tax credit carryforwards	61,900	61,900
Foreign Tax Credit
Deferred tax liabilities:
Tax credit carryforwards	12,300	12,300
Amount of tax credit carryforwards to expire	8,800	8,800
State Income Tax Credit
Deferred tax liabilities:
Tax credit carryforwards	84,600	84,600
Amount of tax credit carryforwards to expire	7,300	7,300
Federal
Deferred tax liabilities:
Net operating loss carryforwards	2,000	2,000
State
Deferred tax liabilities:
Net operating loss carryforwards	53,700	53,700
Foreign
Deferred tax liabilities:
Net operating loss carryforwards	$ 112,000	$ 112,000