Effective Income Tax Rate Reconciliation, Excluding Discrete Items, Percent

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Effective Income Tax Rate Reconciliation, Tax Rate Adjustments, Percent

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The tax year(s) being audited in connection with the income tax examination for other entities.

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Increase decrease interest and penalties.

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Liability for uncertain tax positions, total.

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Tax years open to examination by Internal Revenue Service

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Unrecognized tax benefit shown as a reduction to noncurrent deferred tax assets as a result of net operating loss carryforward, a similar tax loss, or a tax credit carryforward.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount the liability recorded for the income tax examination increased or decreased in the current year/accounting period.

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Amount recognized for uncertainty in income taxes classified as noncurrent.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019	Dec. 31, 2019
Income Tax Contingency [Line Items]
Income tax expense (benefit) at U.S. federal statutory corporate tax rate	(21.00%)	21.00%	21.00%	21.00%
Decrease in effective tax rate	(5.00%)	7.00%	5.00%	7.00%
Decrease in effective tax rate for difference between deduction for tax purposes and compensation cost recognized from stock option exercises	191.00%	2.00%	29.00%	4.00%
Discrete tax expense related to tax return filings (as a percent)	141.00%	0.00%	17.00%	0.00%
Tax rate adjustment (as a percent)	18.00%	0.00%	0.00%	0.00%
Increase in reserves for income taxes, net of deferred tax benefit	$ 710		$ 710
Interest and penalties included in reserve			283
Liability for uncertain tax positions	13,330		13,330
Reserve for income taxes classified as a noncurrent iability	12,302		12,302		$ 11,563
Reserve for income taxes classified an noncurrent deferred tax assets	1,028		1,028
Interest and penalties, gross	$ 1,301		$ 1,301
Tax years open to examination by Internal Revenue Service			2016 through 2019
Tax years open to examination by various taxing authorities for other entities			2015 through 2019
Effective tax rate excluding discrete items (as a percent)	(1.00%)	17.00%	19.00%	16.00%
Foreign Tax Authority \| Revenue Commissioners, Ireland
Income Tax Contingency [Line Items]
Income tax expense (benefit) at U.S. federal statutory corporate tax rate			12.50%
Foreign Tax Authority \| State Administration of Taxation, China
Income Tax Contingency [Line Items]
Income tax expense (benefit) at U.S. federal statutory corporate tax rate			25.00%
Domestic Tax Authority
Income Tax Contingency [Line Items]
Income tax expense (benefit) at U.S. federal statutory corporate tax rate			21.00%