v3.10.0.1
Senior Credit Facility - Credit Agreement (Details) - USD ($)
12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 29, 2018
Line of Credit Facility      
Senior Credit Facility, Maximum Borrowing Capacity $ 500,000,000   $ 500,000,000
Swingline Loan, Maximum Borrowing Capacity 50,000,000    
Debt Issuance Costs, Net (1,400,000) $ (1,400,000) (1,400,000)
Unsecured debt, net of debt issuance costs 407,400,000 426,100,000 407,400,000
Unsecured Debt, Current (26,250,000) (25,000,000) (26,250,000)
Long-term Debt, Excluding Current Maturities 381,100,000 401,069,000 381,100,000
Unsecured Debt 408,750,000 427,500,000 408,750,000
Letters of Credit Outstanding, Amount $ 33,500,000 39,600,000 33,500,000
Debt Instrument, Basis Spread on Variable Rate 0.75%    
Commitment fee for unused capacity 0.125%    
Compensating Balance, Amount $ 0   $ 0
Debt Instrument, Covenant Compliance all    
Base Rate      
Line of Credit Facility      
Line of Credit Facility, Interest Rate at Period End 5.50%   5.50%
London Interbank Offered Rate (LIBOR)      
Line of Credit Facility      
Line of Credit Facility, Interest Rate at Period End 2.50%   2.50%
Minimum      
Line of Credit Facility      
Debt Instrument, Basis Spread on Variable Rate     0.50%
Commitment fee for unused capacity     0.075%
Maximum      
Line of Credit Facility      
Debt Instrument, Basis Spread on Variable Rate     1.125%
Commitment fee for unused capacity     0.20%
February 2016 Term Loan      
Line of Credit Facility      
Debt Instrument, Issuance Date Feb. 19, 2016    
Term loan, Maximum Month End Outstanding Amount $ 165,000,000 180,000,000 $ 165,000,000
Term Loan, Maximum Borrowing Capacity $ 200,000,000    
Debt Instrument, Maturity Date Feb. 19, 2022    
Due in years one and two February 2016 Term Loan      
Line of Credit Facility      
Debt Instrument, Frequency of Periodic Payment 10    
Due in years three through five February 2016 Term Loan      
Line of Credit Facility      
Debt Instrument, Frequency of Periodic Payment 20    
June 2017 Term Loan      
Line of Credit Facility      
Debt Instrument, Issuance Date Jun. 15, 2017    
Term loan, Maximum Month End Outstanding Amount $ 93,800,000 97,500,000 $ 93,800,000
Term Loan, Maximum Borrowing Capacity $ 100,000,000    
Debt Instrument, Maturity Date Jun. 15, 2022    
Debt Instrument, Interest Rate, Plus Stated Percentage 1.00%   1.00%
Due in years one and two June 2017 Term Loan      
Line of Credit Facility      
Debt Instrument, Frequency of Periodic Payment 5    
Due in years three through five June 2017 Term Loan      
Line of Credit Facility      
Debt Instrument, Frequency of Periodic Payment 10    
2016 Senior Credit Facility      
Line of Credit Facility      
Line of Credit Facility, Maximum Month-end Outstanding Amount $ 0 $ 0  
Number of Financial Covenants      
Line of Credit Facility      
Debt Instrument, Covenant Description 2    
Fixed Charge Coverage Ratio Minimum Requirement      
Line of Credit Facility      
Debt Instrument, Covenant Description 2.00    
Leverage Ratio Maximum Requirement      
Line of Credit Facility      
Debt Instrument, Covenant Description 4.00