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Income Taxes (Schedule of Consolidated Net Income (Loss)) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 29, 2017
Dec. 30, 2016
Jan. 01, 2016
Income Tax Disclosure [Abstract]      
Domestic $ 158,577 $ (70,222) $ (150,846)
Foreign 0 0 (10,843)
Income (loss) before income taxes $ 158,577 $ (70,222) $ (161,689)