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DEBT - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 14, 2019
Jun. 30, 2019
Jun. 30, 2019
Dec. 31, 2018
Debt Instrument [Line Items]        
Repurchase price percentage of principle and interest amount 101.00%      
Repayments of private placement notes     $ 1,075,000,000.0  
Less: unamortized debt issuance costs $ 7,100,000 $ 16,300,000 16,300,000 $ 10,500,000
Loss on early extinguishment of debt   23,100,000 23,100,000  
Accrued Liabilities        
Debt Instrument [Line Items]        
Issuance cost   $ 100,000 $ 100,000  
Fourth Amendment        
Debt Instrument [Line Items]        
Issuance cost 2,000,000.0      
Interest expense 200,000      
Term Loan Facility | Fourth Amendment        
Debt Instrument [Line Items]        
Debt instrument additional borrowing capacity $ 365,000,000.0      
Term Loan Facility | Quarter Ending on or Before March 31, 2020        
Debt Instrument [Line Items]        
Maximum consolidated leverage ratio 4.50%   4.36%  
Term Loan Facility | Quarter Ending from April 1, 2020 through September 30, 2020        
Debt Instrument [Line Items]        
Maximum consolidated leverage ratio 4.25%      
Term Loan Facility | Quarter Ending December 31, 2020        
Debt Instrument [Line Items]        
Maximum consolidated leverage ratio 4.00%      
Term Loan Facility | Quarter Ending Thereafter        
Debt Instrument [Line Items]        
Maximum consolidated leverage ratio 3.75%      
Term Loan Facility | Maximum        
Debt Instrument [Line Items]        
Allowed additional cash back to EBITDA $ 200,000,000.0      
Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, redemption price, percentage of principal amount redeemed 100.00%      
Debt instrument, redemption, description     The Senior Notes will be redeemable, at the option of the Company, in whole or in part, at any time on or after July 15, 2021, at the redemption prices specified in the Indenture along with accrued interest. At any time prior to July 15, 2021, the Senior Notes may be redeemed, at the option of the Company, in whole or in part, at a redemption price of 100% of the principal amount thereof, plus a “make-whole” premium and accrued and unpaid interest. In addition, the Company may redeem up to 40% of the Senior Notes at any time before July 15, 2021, with the net cash proceeds from certain equity offerings at a redemption price equal to 105.375%, plus accrued and unpaid interest.  
Senior Notes | Equity Offering        
Debt Instrument [Line Items]        
Debt instrument, redemption price, percentage of principal amount redeemed 105.375%      
Senior Notes | Maximum        
Debt Instrument [Line Items]        
Debt instrument, redemption price, percentage 40.00%      
Senior Notes | Senior Notes, due July 2024        
Debt Instrument [Line Items]        
Aggregate principal amount $ 600,000,000.0      
Debt instrument, interest rate 5.375%      
Debt Instrument, frequency of periodic payment     payable on January 15 and July 15 of each year  
Private Placement Notes        
Debt Instrument [Line Items]        
Repayments of private placement notes $ 1,075,000,000.000      
Loss on early extinguishment of debt 23,100,000      
Premiums payable 20,400,000      
Write-off of unamortized debt issuance costs 2,700,000      
Interest expense $ 3,400,000