Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Narrative (Details)

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Long-Term Debt - Narrative (Details)
1 Months Ended 3 Months Ended
Sep. 27, 2019
USD ($)
Dec. 14, 2017
USD ($)
Nov. 09, 2015
USD ($)
Dec. 31, 2015
USD ($)
Dec. 28, 2019
USD ($)
Sep. 28, 2019
USD ($)
Dec. 29, 2018
USD ($)
Dec. 31, 2017
Apr. 22, 2016
Components of long-term debt                  
Line of credit facility, commitment fee percentage 0.125%                
Ownership percentage of equity 65.00%                
Collateral Pledged                  
Components of long-term debt                  
Ownership percentage of equity 100.00%                
Revolving credit facility | LIBOR-based borrowings                  
Components of long-term debt                  
Applicable interest margin rate on the credit facility 0.00%                
Letter of credit                  
Components of long-term debt                  
Other letters of credit outstanding         $ 3,200,000        
Standby Letters of Credit                  
Components of long-term debt                  
Letters of credit outstanding $ 50,000,000                
Short-term Debt                  
Components of long-term debt                  
Letters of credit outstanding 40,000,000                
Secured debt | Base rate borrowings                  
Components of long-term debt                  
Applicable interest margin rate on the credit facility         0.00%        
Secured debt | Revolving credit facility                  
Components of long-term debt                  
Credit facility, maximum principal amount 400,000,000.0                
Credit facility, additional borrowings available $ 200,000,000.0                
Credit facility, available capacity         $ 357,800,000        
Line of credit outstanding borrowings         0        
Other letters of credit outstanding         0        
Debt issuance costs         $ 1,600,000        
Debt instrument fixed charge coverage ratio                 1.00
Secured debt | Revolving credit facility | Federal funds rate                  
Components of long-term debt                  
Applicable interest margin rate on the credit facility 0.50%                
Secured debt | Revolving credit facility | One-month LIBOR                  
Components of long-term debt                  
Applicable interest margin rate on the credit facility 1.00%                
Secured debt | Revolving credit facility | LIBOR-based borrowings                  
Components of long-term debt                  
Applicable interest rate on the credit facility         2.80%        
Secured debt | Revolving credit facility | Base rate borrowings                  
Components of long-term debt                  
Applicable interest rate on the credit facility         4.80%        
Secured debt | Revolving credit facility | Minimum | LIBOR-based borrowings                  
Components of long-term debt                  
Applicable interest margin rate on the credit facility 1.00%                
Secured debt | Revolving credit facility | Minimum | Base rate borrowings                  
Components of long-term debt                  
Applicable interest margin rate on the credit facility 0.00%                
Secured debt | Revolving credit facility | Maximum | LIBOR-based borrowings                  
Components of long-term debt                  
Applicable interest margin rate on the credit facility 1.50%                
Secured debt | Revolving credit facility | Maximum | Base rate borrowings                  
Components of long-term debt                  
Applicable interest margin rate on the credit facility 0.50%                
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Redemption period one                  
Components of long-term debt                  
Debt redemption price percentage   105.125%              
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Redemption period two                  
Components of long-term debt                  
Debt redemption price percentage   102.563%              
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Redemption period three                  
Components of long-term debt                  
Debt redemption price percentage   101.708%              
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Redemption period four                  
Components of long-term debt                  
Debt redemption price percentage   100.854%              
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Redemption period five                  
Components of long-term debt                  
Debt redemption price percentage   100.00%              
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Upon change of control                  
Components of long-term debt                  
Debt redemption price percentage   101.00%              
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Senior notes                  
Components of long-term debt                  
Aggregate principal amount of debt   $ 300,000,000     $ 300,000,000 $ 300,000,000 $ 300,000,000    
Debt instrument interest rate stated, percentage   5.125%     5.125%     5.125%  
Debt issuance cost   $ 4,800,000              
Redemption percentage   35.00%              
Senior notes, interest at 6.125%, payable semi-annually, principal due November 2023 | Redemption period three                  
Components of long-term debt                  
Debt redemption price percentage     103.063%            
Senior notes, interest at 6.125%, payable semi-annually, principal due November 2023 | Redemption period four                  
Components of long-term debt                  
Debt redemption price percentage     101.531%            
Senior notes, interest at 6.125%, payable semi-annually, principal due November 2023 | Redemption period five                  
Components of long-term debt                  
Debt redemption price percentage     100.00%            
Senior notes, interest at 6.125%, payable semi-annually, principal due November 2023 | Upon change of control                  
Components of long-term debt                  
Debt redemption price percentage     101.00%            
Senior notes, interest at 6.125%, payable semi-annually, principal due November 2023 | Senior notes                  
Components of long-term debt                  
Aggregate principal amount of debt     $ 400,000,000   $ 400,000,000 $ 400,000,000 $ 400,000,000    
Debt instrument interest rate stated, percentage     6.125%   6.125%        
Debt issuance cost     $ 6,300,000            
Senior subordinated notes, interest at 8.25%, payable semi-annually, principal due march 2018 | Senior notes                  
Components of long-term debt                  
Aggregate principal amount of debt       $ 400,000,000          
Debt instrument interest rate stated, percentage       8.25%          
Senior subordinated notes, interest at 8.25%, payable semi-annually, principal due march 2018 | Senior subordinated notes                  
Components of long-term debt                  
Debt redemption price percentage       102.063%