Long-Term Debt - Summary of Long-Term Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt	$ 2,038,631	$ 1,557,883
Less: discounts and debt issuance costs	(16,544)	(9,759)
Less: current maturities	(15,505)	(65,505)
Long-term debt, net	2,006,582	1,482,619
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt	311,000	50,000
Less: current maturities		(50,000)
Long-term debt, net	311,000
Senior Secured Notes [Member]
Debt Instrument [Line Items]
Long-term debt	227,500
Term B-5 Loans [Member]
Debt Instrument [Line Items]
Long-term debt	$ 1,500,131	$ 1,507,883