Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 29, 2020	Dec. 29, 2019	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	$ 1,869		$ 5,797
Income (loss) before income taxes and equity in earnings (losses) of unconsolidated investees	(514)		$ (100,448)
Unrecognized tax benefits, income tax penalties and interest accrued	18,800	$ 20,100
Valuation allowance, deferred tax asset, increase (decrease), amount	$ 1,300	$ (5,800)

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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

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Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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