v3.19.2

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Income Tax Contingency [Line Items]
Federal statutory rate			21.00%	21.00%
Effective tax rates	16.20%	20.00%	14.60%	(4.90%)
One-time impact of favorable conclusion of 2015 audit and recognition of tax position relate with depreciation and amortization expense				$ (9,838)
RSUs
Income Tax Contingency [Line Items]
Excess benefits related to exercise of awards	$ 1,808	$ 880	$ 3,635	$ 1,117

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Effective Income Tax Rate Reconciliation, Tax Contingency And Nondeductible Expense, Amount

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

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Amount 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 excess tax benefit for share-based compensation cost.

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