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Revolving Credit Facility Debt Instrument (Details) - USD ($)
9 Months Ended
Jan. 08, 2016
Sep. 30, 2017
Oct. 01, 2016
Line of Credit Facility [Line Items]      
Line of Credit, Current   $ 0  
Letters of Credit Outstanding, Amount   300,000  
Adjusted London Interbank Offered Rate (LIBOR) | Minimum      
Line of Credit Facility [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 1.125%    
Adjusted London Interbank Offered Rate (LIBOR) | Maximum      
Line of Credit Facility [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 2.00%    
Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Line of Credit Facility, Current Borrowing Capacity   250,000,000  
Line of Credit Facility, Maximum Borrowing Capacity $ 350,000,000.00    
Interest Expense, Debt   $ 500,000 $ 3,000,000
Revolving Credit Facility [Member] | Base Rate | Minimum      
Line of Credit Facility [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 0.125%    
Revolving Credit Facility [Member] | Base Rate | Maximum      
Line of Credit Facility [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 1.00%    
Revolving Credit Facility [Member] | Minimum      
Line of Credit Facility [Line Items]      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.175%    
Revolving Credit Facility [Member] | Maximum      
Line of Credit Facility [Line Items]      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.30%    
Revolving Credit Facility [Member] | One Month Adjusted London Interbank Offered Rate (LIBOR)      
Line of Credit Facility [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 1.00%    
Revolving Credit Facility [Member] | Federal Fund      
Line of Credit Facility [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 0.50%