Quarterly report pursuant to Section 13 or 15(d)

Long Term Debt Activity - Additional Information (Detail)

v3.19.3
Long Term Debt Activity - Additional Information (Detail)
$ in Thousands
9 Months Ended
Mar. 29, 2018
USD ($)
Sep. 30, 2019
USD ($)
Agreement
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]        
Incurred debt issue costs     $ 5,103  
Carrying value of long-term debt   $ 1,804,364   $ 1,809,311
Fair value of long-term debt   $ 1,825,063   $ 1,774,066
Number of interest rate swap agreements | Agreement   3    
Amended Senior Secured Credit Facility        
Debt Instrument [Line Items]        
Debt instrument, reduction in interest rate 0.25%      
Quarterly principal payments due $ 1,649      
Last quarterly payment date Dec. 31, 2024      
Final principal payment $ 613,351      
Incurred debt issue costs   $ 4,962    
Wrote-off of unamortized debt issuance costs   780    
Debt amendment, legal and other fees   $ 704    
Amended Senior Secured Credit Facility | Term Loan Credit facility        
Debt Instrument [Line Items]        
Final principal payment due date Mar. 29, 2025