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Goodwill And Other Intangible Assets Aggregate Amortization Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Jan. 01, 2017
Jan. 03, 2016
Finite-Lived Intangible Assets      
Amortization of intangible assets $ 47,302 $ 48,824 $ 54,686
Future amortization, 2018 48,220    
Future amortization, 2019 43,854    
Future amortization, 2020 39,748    
Future amortization, 2021 34,706    
Future amortization, 2022 30,229    
Future amortization, Thereafter 221,828    
Impairment of Intangible Assets (Excluding Goodwill) $ 52 3,288 3,656
System Optimization | Assets, Accelerated Useful Lives | Reacquired rights under franchise agreements      
Finite-Lived Intangible Assets      
Amortization of intangible assets   $ 1,600 $ 6,384