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Employee Benefit Plans (Stock Options and Stock Appreciation Rights) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Excess tax benefits from stock-based compensation $ 5 $ 200 $ 1,400