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Income Taxes (Schedule of Reconciliation of Income Taxes at the Statutory Federal Income Tax Rate to Net Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Jan. 01, 2016
Income Tax Disclosure [Abstract]
U.S. federal income tax provision (benefit) at statutory rate	$ 53,916	$ (23,876)	$ (54,974)
Change in valuation allowance	(34,266)	6,377	51,421
State tax expense	8,282	6,520	55
Debt extinguishment	0	4,726	0
Non-deductible interest	1,367	2,680	3,308
Stock-based compensation	(20,548)	3,155	195
Other	(4,401)	418	50
Provision for income taxes	$ 4,350	$ 0	$ 55

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Effective Income Tax Rate Reconciliation, Extinguishment of Debt, Amount

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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 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 increase (decrease) in the valuation allowance for deferred tax assets.

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