Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Narrative (Details)

v3.20.2
Fair Value Measurements - Narrative (Details) - USD ($)
Jun. 27, 2020
Sep. 28, 2019
Jun. 29, 2019
Dec. 31, 2017
Dec. 14, 2017
Nov. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Carrying value of senior subordinated notes $ 694,013,000 $ 693,150,000 $ 693,064,000      
Senior notes            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Carrying value of senior subordinated notes $ 693,793,000 692,842,000 692,525,000      
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 $ 310,900,000 307,100,000 295,000,000.0      
Carrying value of senior subordinated notes 296,500,000 296,100,000 296,000,000      
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 409,500,000 414,600,000 415,800,000      
Carrying value of senior subordinated notes $ 397,300,000 $ 396,700,000 $ 396,500,000