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Income taxes Income taxes (Tables)

12 Months Ended

Sep. 29, 2018

Income Tax Disclosure [Abstract]

Schedule of income (loss) before provision for (benefit from) income taxes

The Company’s income (loss) before provision for (benefit from) income taxes for fiscal 2018, 2017 and 2016 were as follows: 

	2018				2017				2016
(In thousands)
Domestic	$	2,803			$	(25,005	)		$	(47,285	)
Foreign	(17,351		)		8,497				11,715
Income (loss) before provision for (benefit from) income taxes	$	(14,548	)		$	(16,508	)		$	(35,570	)

Schedule of provision for (benefit from) income taxes

Components of the provision for (benefit from) income taxes consisted of the following:

	2018				2017				2016
(In thousands)
Current:
U.S. Federal	$	—			$	—			$	129
U.S. State	177				62				59
Foreign	816				(3,791		)		3,344
Total current	993				(3,729		)		3,532
Deferred:
U.S. Federal	(168		)		—				—
U.S. State	—				—				—
Foreign	231				1,438				(888		)
Total deferred	63				1,438				(888		)
Provision for (benefit from) income taxes	$	1,056			$	(2,291	)		$	2,644

Schedule of deferred tax assets and liabilities

Components of the Company’s net deferred income tax assets (liabilities) are as follows:

	2018				2017
(In thousands)
Deferred tax assets
Accrued expenses and reserves	$	5,639			$	8,828
Deferred revenue	10,317				218
Inventory deferral	—				3,259
U.S. net operating loss carryforwards	18,385				53,589
Foreign net operating loss carryforwards	5,625				1,147
Tax credit carryforwards	22,969				17,553
Stock-based compensation	7,237				7,976
Amortization	3,237				3,859
Other	427				324
Total deferred tax assets	73,836				96,753
Valuation allowance	(72,380		)		(94,956		)
Deferred tax assets, net of valuation allowance	1,456				1,797
Deferred tax liabilities
Depreciation	(515		)		(690		)
Total deferred tax liabilities	(515		)		(690		)
Net deferred tax assets	$	941			$	1,107

Summary of changes in valuation allowance

The following table summarizes changes in the valuation allowance for fiscal 2018, 2017 and 2016:

(In thousands)	2018				2017				2016
Beginning balance	$	94,956			$	95,882			$	33,264
Increase (decrease) during the period	(22,576		)		(926		)		19,535
Increase due to adoption of ASU 2016-09	—				—				43,083
Ending balance	$	72,380			$	94,956			$	95,882

Schedule of effective income tax rate reconciliation

Reconciliation of U.S. statutory federal income taxes to the Company’s provision for (benefit from) income taxes is as follows:

(In thousands)	2018				2017				2016
U.S. federal income taxes at statutory rate	$	(3,570	)		$	(5,778	)		$	(12,450	)
U.S. state and local income taxes	(1,441		)		(2,454		)		(1,813		)
Foreign income tax rate differential	(53		)		(1,101		)		(4,680		)
Dutch tax settlement	—				7,361				—
Stock-based compensation	4,025				1,503				6,521
Research tax credits	(2,343		)		(1,787		)		(4,036		)
Change in tax rate	25,725				—				(624		)
Other	259				1,197				191
Change in valuation allowance	(21,546		)		(1,232		)		19,535
Provision for (benefit from) income taxes	$	1,056			$	(2,291	)		$	2,644

Schedule of changes in unrecognized tax benefits

Change in unrecognized tax benefits as a result of uncertain tax positions are as follows:

	2018				2017
(In thousands)
Beginning balance	$	13,780			$	11,496
Increase (decrease) - tax positions in prior periods	636				(23		)
Increase (decrease) - tax positions in current periods	3,378				2,307
Ending balance	$	17,794			$	13,780

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure of the change in unrecognized tax benefits.

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Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

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