Debt - Senior Unsecured Notes - Narrative (Details) - USD ($)
6 Months Ended
Jun. 27, 2019
Aug. 18, 2016
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Debt Instrument [Line Items]          
Proceeds from issuance of debt     $ 820,000,000 $ 0  
Unamortized deferred financing costs     17,681,000   $ 14,932,000
Senior Unsecured Notes          
Debt Instrument [Line Items]          
Unamortized discount     1,700,000   1,500,000
Unamortized deferred financing costs     $ 6,300,000   $ 2,700,000
Senior Unsecured Notes | 2016 Senior Unsecured Notes          
Debt Instrument [Line Items]          
Aggregate principal amount of debt   $ 300,000,000.0      
Principal amount issued   99.378%      
Proceeds from issuance of debt   $ 296,200,000      
Stated interest rate   4.45%      
Debt instrument, maturity date   Sep. 15, 2026      
Redemption price, percent of principal amount     100.00%    
Deferred financing costs   $ 3,400,000      
Unamortized discount   $ 1,900,000      
Senior Unsecured Notes | 2019 Senior Unsecured Notes          
Debt Instrument [Line Items]          
Aggregate principal amount of debt $ 400,000,000.0        
Principal amount issued 99.274%        
Proceeds from issuance of debt $ 395,900,000        
Stated interest rate 4.00%        
Debt instrument, maturity date Jul. 15, 2029        
Redemption price, percent of principal amount     100.00%    
Deferred financing costs $ 3,800,000        
Unamortized discount $ 300,000