Income Taxes (Tables)

12 Months Ended

Sep. 27, 2019

Income Tax Disclosure [Abstract]

Components Of Income Before Provision For Income Taxes

The following two tables present the components of our income before provision for income taxes by geographic region and the portion of our provision for income taxes classified as current and deferred (in thousands):

	Fiscal Year Ended
	September 27, 2019		September 28, 2018 (as adjusted)		September 29, 2017 (as adjusted)
United States	$	60,500	$	27,819	$	3,996
Foreign	221,807		168,555		251,149
Total	$	282,307	$	196,374	$	255,145

Schedule Of Provision For Income Taxes

	Fiscal Year Ended
	September 27, 2019			September 28, 2018 (as adjusted)			September 29, 2017 (as adjusted)
Current:
Federal	$	14,144		$	40,624		$	30,718
State	394			333			610
Foreign	64,335			59,383			55,531
Total current	78,873			100,340			86,859
Deferred:
Federal	(55,793		)	43,377			(35,824		)
State	1,007			17,484			(4,604		)
Foreign	2,715			(7,132		)	1,608
Total deferred	(52,071		)	53,729			(38,820		)
Provision for income taxes	$	26,802		$	154,069		$	48,039

Schedule of Withholding Taxes

Summary Of Tax Effects Of The Temporary Differences Between Carrying Amounts And Amounts Used For Tax

A summary of the tax effects of the temporary differences were as follows (in thousands):

	Fiscal Year Ended
	September 27, 2019			September 28, 2018 (as adjusted)
Deferred income tax assets:
Investments	$	2,099		$	2,215
Inventories	4,041			4,070
Net operating loss	2,050			2,174
Accrued expenses	13,917			12,573
Stock-based compensation	17,189			15,601
Revenue recognition	4,410			7,161
Depreciation and amortization	19,988			16,078
Research and development credits	28,777			21,302
Foreign tax credits	10,777			9,345
Deemed repatriated earnings tax benefit	33,357			—
Other	4,705			3,334
Total gross deferred income tax assets	141,310			93,853
Less: valuation allowance	(24,884		)	(16,256		)
Total deferred income tax assets	116,426			77,597
Deferred income tax liabilities:
Intangibles	(2,351		)	(2,831		)
Deferred income tax assets, net (non-current)	$	114,075		$	74,766

Reconciliation Of Federal Statutory Tax Rate To Our Effective Tax Rate

A reconciliation of the federal statutory tax rate to our effective tax rate on income from continuing operations was as follows:

	Fiscal Year Ended
	September 27, 2019		September 28, 2018 (as adjusted)		September 29, 2017 (as adjusted)
Federal statutory rate	21.0	%	24.6	%	35.0	%
State income taxes, net of federal effect	0.2		0.7		0.7
Stock-based compensation expense rate	(2.8	)	(5.2	)	1.4
Research and development tax credits	(3.0	)	(4.5	)	(3.7	)
Tax exempt interest	—		(0.1	)	(0.1	)
U.S. manufacturing tax incentives	—		(0.2	)	(0.8	)
Foreign rate differential	(2.6	)	(5.2	)	(22.9	)
Audit settlements	—		—		(0.6	)
Tax Act	(7.7	)	53.3		—
Change in Valuation Allowance	1.5		8.3		—
Other	2.9		6.8		9.8
Effective tax rate	9.5	%	78.5	%	18.8	%

Aggregate Changes In Balance Of Gross Unrecognized Tax Benefits, Excluding Interest And Penalties

Aggregate changes in the balance of gross unrecognized tax benefits, excluding interest and penalties, were as follows (in thousands):

	Fiscal Year Ended
	September 27, 2019			September 28, 2018			September 29, 2017
Beginning Balance	$	102,009		$	98,665		$	75,168
Gross increases - tax positions taken during prior years	115			—			308
Gross decreases - tax positions taken during prior years	—			(2,209		)	—
Gross increases - tax positions taken during current year	6,822			9,580			26,724
Gross decreases - settlements with tax authorities during current year	—			(130		)	(1,101		)
Lapse of statute of limitations	(407		)	(3,897		)	(2,434		)
Ending Balance	$	108,539		$	102,009		$	98,665

Schedule of Accrued Interest and Penalties on Unrecognized Tax Benefits

ur accrued interest and penalties on unrecognized tax benefits as of September 27, 2019 and September 28, 2018 were as follows (in thousands):

	Fiscal Year Ended
	September 27, 2019		September 28, 2018
Accrued interest	$	10,315	$	6,778
Accrued penalties	44		42
Total	$	10,359	$	6,820

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