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Debt (Narratives) (Details)
7 Months Ended 12 Months Ended
Aug. 08, 2016
USD ($)
Aug. 07, 2016
Dec. 31, 2016
USD ($)
Jan. 02, 2016
USD ($)
Jan. 03, 2015
USD ($)
Mar. 09, 2015
USD ($)
Dec. 28, 2013
USD ($)
May 11, 2012
USD ($)
Debt Instrument                
International cash balance     $ 297,330,000 $ 289,275,000 $ 276,261,000   $ 320,479,000  
Interest paid     26,867,000 20,042,000 $ 15,924,000      
Credit Agreement                
Debt Instrument                
Increments in excess of minimum principal amount     1,000,000.0          
Credit Agreement | Minimum                
Debt Instrument                
Minimum principal payments     3,000,000.0          
Credit Agreement | Maximum                
Debt Instrument                
Consolidated leverage ratio required (less than) 3.25              
Consolidated interest coverage ratio required (greater than) 3.50              
U.S. revolving line of credit                
Debt Instrument                
Maximum borrowing capacity           $ 1,050,000,000.00    
Remaining borrowing capacity     303,900,000          
Net borrowings     148,000,000          
International cash balance     200,000,000          
Interest expense incurred     $ 15,800,000          
U.S. revolving line of credit | Minimum                
Debt Instrument                
Commitment fee (as a percent)     0.20%          
U.S. revolving line of credit | Maximum                
Debt Instrument                
Commitment fee (as a percent)     0.45%          
U.S. revolving line of credit | Base rate loans                
Debt Instrument                
Minimum principal payments     $ 2,000,000.0          
Increments in excess of minimum principal amount     $ 1,000,000.0          
U.S. revolving line of credit | Base rate loans | Consolidated leverage ratio (the Ratio) less than 1.00 to 1.00                
Debt Instrument                
Applicable margin based on the Company's consolidated leverage ratio (as a percent) 0.50%              
U.S. revolving line of credit | Base rate loans | Consolidated Leverage Ratio Greater Than Or Equal To 3.00 to 1.00 [Member]                
Debt Instrument                
Consolidated leverage ratio used to calculate variable rate of debt (as a percent) 0.0175              
U.S. revolving line of credit | Base rate loans | Prime rate                
Debt Instrument                
Base rate at end of period     3.75%          
U.S. revolving line of credit | Base rate loans | Federal funds rate                
Debt Instrument                
Description of base rate federal funds rate              
Basis spread on base rate (as a percent) 0.50%              
U.S. revolving line of credit | Base rate loans | LIBOR                
Debt Instrument                
Base rate at end of period     0.69%          
Description of base rate LIBOR              
Basis spread on base rate (as a percent) 1.00%              
U.S. revolving line of credit | LIBOR rate loans                
Debt Instrument                
Minimum principal payments     $ 5,000,000.0          
Increments in excess of minimum principal amount     $ 1,000,000.0          
U.S. revolving line of credit | LIBOR rate loans | LIBOR                
Debt Instrument                
Description of base rate     LIBOR          
Swingline loan                
Debt Instrument                
Maximum borrowing capacity           20,000,000.0    
Minimum principal payments     $ 100,000.0          
Increments in excess of minimum principal amount     100,000.0          
U.S. term loan                
Debt Instrument                
Maximum borrowing capacity           231,300,000    
Minimum principal payments     5,000,000.0          
Increments in excess of minimum principal amount     1,000,000.0          
Interest paid     $ 6,700,000          
U.S. term loan | Base rate loans                
Debt Instrument                
Quotient denominator used to determine LIBOR rate 1.00              
U.S. term loan | LIBOR rate loans | LIBOR                
Debt Instrument                
Description of base rate     LIBOR          
U.S. term loan | LIBOR rate loans | LIBOR | Consolidated leverage ratio (the Ratio) less than 1.00 to 1.00                
Debt Instrument                
Applicable margin based on the Company's consolidated leverage ratio (as a percent) 1.50%              
Consolidated leverage ratio used to calculate variable rate of debt (as a percent) 1.00              
U.S. term loan | LIBOR rate loans | LIBOR | Consolidated Leverage Ratio Greater Than Or Equal To 3.00 to 1.00 [Member]                
Debt Instrument                
Applicable margin based on the Company's consolidated leverage ratio (as a percent) 2.75%              
Consolidated interest coverage ratio required (greater than) 3.00              
U.S. term loan | Credit Agreement                
Debt Instrument                
Principal payments     $ 21,900,000          
First Amendment                
Debt Instrument                
Increase on basis spread on variable rate on debt instrument 0.25              
Proceeds from debt issuance used as prepayments of debt, threshold $ 25,000,000.0              
Minimum consolidated leverage ratio 3.25 2.50            
First Amendment | Base Rate                
Debt Instrument                
Increase on basis spread on variable rate on debt instrument 0.25              
LC Facility                
Debt Instrument                
Maximum borrowing capacity           $ 10,000,000.0   $ 80,000,000
Letters of credit outstanding     54,300,000 36,700,000        
Capital lease obligations                
Debt Instrument                
Current capital lease obligations     1,400,000 1,300,000        
Long-term capital lease obligations     $ 4,000,000 $ 5,400,000