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Employee Benefit Plans (Stock Option and Stock Appreciation Rights Activity) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Shares        
Outstanding at beginning of period (in shares) 2,287 2,028 663  
Granted (in shares) 0 326 1,496  
Exercised (in shares) (13) (10) (36)  
Forfeited or expired (in shares) (97) (57) (95)  
Outstanding at end of period (in shares) 2,177 2,287 2,028 663
Exercisable (in shares) 1,058      
Weighted-Average Exercise Price        
Outstanding at beginning of period (in dollars per share) $ 50.58 $ 52.80 $ 85.08  
Granted (in dollars per share) 0.00 41.53 41.16  
Exercised (in dollars per share) 13.65 26.93 31.04  
Forfeited or expired (in dollars per share) 67.99 81.93 102.86  
Outstanding at end of period (in dollars per share) 50.01 $ 50.58 $ 52.80 $ 85.08
Exercisable (in dollars per share) $ 62.01      
Weighted-Average Remaining Contractual Term (Years)        
Outstanding 5 years 3 months 12 days 6 years 2 months 12 days 8 years 8 months 12 days 5 years 7 months 6 days
Exercisable 4 years 7 months 12 days      
Aggregate Intrinsic Value        
Outstanding $ 0 $ 627 $ 2,095 $ 20,751
Exercised 35 $ 186 $ 1,544  
Exercisable $ 0