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Supplemental Cash Flow Information- Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Jan. 03, 2016
Dec. 28, 2014
Dec. 29, 2013
Supplemental Cash Flow Elements [Abstract]      
Interest paid $ 2.7 $ 1.6 $ 2.0
Income taxes paid 23.5 10.9 16.9
Non-cash capital expenditures $ 1.8 $ 1.4 1.1
Prior Year Understatement of Accrued Payroll and Related Taxes      
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Amount of misstatement in current year financial statements     4.8
Prior Year Understatement of Cash and Cash Equivalents      
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Amount of misstatement in current year financial statements     4.8
Prior Year Overstatement of Net Cash from Operating Activities      
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Amount of misstatement in current year financial statements     4.8
Prior Year Overstatement of Operating Assets and Liabilities      
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Amount of misstatement in current year financial statements     4.8
Prior Year Understatement of Net Cash from Operating Activities      
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Amount of misstatement in current year financial statements     1.4
Prior Year Understatement of Net Cash used in Investing Activities      
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Amount of misstatement in current year financial statements     $ 1.4