Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Narrative (Details)

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Fair Value Measurements - Narrative (Details) - USD ($)
3 Months Ended
Mar. 30, 2019
Sep. 29, 2018
Mar. 31, 2018
Dec. 30, 2017
Dec. 14, 2017
Nov. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Indefinite-lived intangible assets, carrying value $ 2,500,000          
Indefinite-lived intangible assets, impairment charge 2,500,000          
Carrying value of senior subordinated notes 697,765,000 $ 692,153,000 $ 691,104,000      
Senior notes            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Carrying value of senior subordinated notes $ 692,209,000 691,575,000 690,947,000      
Senior notes | Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Debt, aggregate principal amount       $ 300,000,000    
Debt instrument interest rate stated, percentage 5.125%     5.125% 5.125%  
Estimated fair value of senior notes $ 278,200,000 285,500,000 285,400,000      
Carrying value of senior subordinated notes 295,900,000 295,600,000 295,300,000      
Senior notes | 6.125% senior notes due in November 2023            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Debt, aggregate principal amount           $ 400,000,000
Debt instrument interest rate stated, percentage           6.125%
Estimated fair value of senior notes 417,700,000 414,400,000 419,000,000      
Carrying value of senior subordinated notes $ 396,300,000 $ 396,000,000 $ 395,600,000