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Investment in Equity Affiliate (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 03, 2016
Dec. 28, 2014
Dec. 29, 2013
Schedule of Equity Method Investments [Line Items]      
Equity method investments $ 9.4 $ 9.6  
Payments to acquire equity method investments $ 0.5 [1] 5.7 $ 0.0
Prior Year Understatement of Net Cash from Operating Activities      
Schedule of Equity Method Investments [Line Items]      
Amount of misstatement in current year financial statements     $ 1.4
China-based Staffing Company      
Schedule of Equity Method Investments [Line Items]      
Payments to acquire equity method investments   $ 4.8  
TS Kelly      
Schedule of Equity Method Investments [Line Items]      
Equity method investment, ownership percentage 49.00%    
[1] Fiscal year included 53 weeks.