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Employee Benefit Plans - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 09, 2015
Sep. 15, 2014
Apr. 02, 2016
Apr. 04, 2015
Mar. 29, 2014
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Number of shares available for grant           561,162    
Tax benefits related to employees' and directors' stock plans             $ 881 $ 771
Share price           $ 61.20    
Cost recognized, defined contribution plan           $ 3,005 $ 2,749 $ 2,655
Pension benefits                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Future amortization of loss           541    
Future amortization of prior service cost (credit)           144    
Pension benefits | U.S. Pension Benefits                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Estimated future employer contribution, next year           $ 1,080    
Pension benefits | Debt Securities                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Maximum weighted-average maturity, debt securities           10 years    
Average benchmark duration for debt securities           5 years    
Former chief financial officer                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Compensation expense for arrangement with former CFO   $ 360            
Restricted stock units for non employee directors (RSUs)                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Grants in period     5,000 5,000 5,000      
Restricted stock units for non employee directors change of control                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Grants in period 50,000              
Grants in period per employee (in shares) 10,000              
Fair value of RSU's outstanding       $ 2,279        
Forfeited / expired (in shares)             10,000  
Unvested RSU's at end of year (in shares)           40,000    
Performance shares                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Shares received upon vesting (in shares)           1    
Compensation cost not yet recognized           $ 1,467    
Compensation cost not yet recognized, recognition period           1 year 3 months 18 days    
Award vesting period           3 years    
Time-based restricted stock units                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Shares received upon vesting (in shares)           1    
Compensation cost not yet recognized           $ 2,614    
Compensation cost not yet recognized, recognition period           1 year 9 months 18 days    
Restricted stock units and stock option awards | Former chief financial officer                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Compensation and options expense for arrangement with former CFO   $ 428            
Restricted stock unit awards                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Grants in period           132,000    
Forfeited / expired (in shares)           2,000    
Unvested RSU's at end of year (in shares)           203,000 216,000  
Weighted average grant date fair value, granted (in dollars per share)           $ 40.41 $ 44.75 $ 38.52
Fair value of awards vested in period           $ 6,233 $ 7,502 $ 6,895
Weighted-average grant date fair value (in dollars per share)           $ 40.23 $ 37.01  
Restricted stock unit awards | Former chief financial officer                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Grants in period   12,313            
Weighted-average grant date fair value (in dollars per share)   $ 39.94            
Stock option awards                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Award vesting period           3 years    
Stock option awards | Former chief financial officer                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Grants in period (in shares)   5,201            
Weighted-average grant date fair value of options, granted in period (in dollars per share)   $ 17.96            
Employee Stock Purchase Plan Awards                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Discount to market under the ESOP           15.00%    
Maximum period of restriction on resale under ESOP           1 year    
Maximum participation based on compensation percentage under ESOP           10.00%    
Stock issued during period under ESOP           17,874 13,573 12,017
Selling, general and administrative expenses                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Stock-based compensation expense           $ 5,069 $ 5,741 $ 5,813
Selling, general and administrative expenses | Restricted stock unit awards                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Stock-based compensation expense           4,848 5,185 4,904
Selling, general and administrative expenses | Stock option awards                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Stock-based compensation expense           51 420 782
Selling, general and administrative expenses | Employee Stock Purchase Plan Awards                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Stock-based compensation expense           $ 170 $ 136 $ 127