XML 105 R80.htm IDEA: XBRL DOCUMENT v3.20.4
DEBT - Additional Information (Detail) - USD ($)
12 Months Ended
Nov. 09, 2020
Apr. 06, 2020
Feb. 25, 2020
Jun. 14, 2019
Dec. 31, 2020
Dec. 31, 2019
Nov. 17, 2017
Debt Instrument [Line Items]              
Unamortized debt issuance costs       $ 7,100,000 $ 15,100,000 $ 14,200,000  
Repurchase price percentage of principle and interest amount       101.00%      
Increase in pricing tier percent based on leverage ratio of greater than 4.50 to 1.00     0.125%        
ESOL Disposal Group              
Debt Instrument [Line Items]              
Increase (decrease) in consolidated leverage ratio   (25.00%)          
Senior Notes              
Debt Instrument [Line Items]              
Debt instrument, redemption price, percentage       100.00%      
Senior Notes | Equity offering              
Debt Instrument [Line Items]              
Debt instrument, redemption price, percentage       105.375%      
Maximum | Senior Notes | Equity offering              
Debt Instrument [Line Items]              
Debt instrument, redemption price, percentage of principal amount redeemed       40.00%      
Period until December 31, 2020 | ESOL Group | ESOL Disposal Group              
Debt Instrument [Line Items]              
Maximum consolidated leverage ratio     475.00%        
Period until December 31, 2020 | Maximum              
Debt Instrument [Line Items]              
Maximum consolidated leverage ratio     500.00%        
Period until December 31, 2020 | Maximum | ESOL Disposal Group              
Debt Instrument [Line Items]              
Maximum consolidated leverage ratio   475.00%          
Period until December 31, 2021 | ESOL Group | ESOL Disposal Group              
Debt Instrument [Line Items]              
Maximum consolidated leverage ratio     425.00%        
Period until December 31, 2021 | Maximum              
Debt Instrument [Line Items]              
Maximum consolidated leverage ratio     450.00%        
Period until December 31, 2021 | Maximum | ESOL Disposal Group              
Debt Instrument [Line Items]              
Maximum consolidated leverage ratio   425.00%          
Fiscal quarter after March 31, 2022 and thereafter | ESOL Disposal Group              
Debt Instrument [Line Items]              
Maximum consolidated leverage ratio     450.00%        
Fifth Amendment              
Debt Instrument [Line Items]              
Unamortized debt issuance costs         1,700,000    
Interest costs incurred         400,000    
$500 million Senior Notes, due in 2029 | Senior Notes              
Debt Instrument [Line Items]              
Long-term debt         500,000,000.0 $ 0  
Aggregate principal amount $ 500,000,000.0       $ 500,000,000    
Debt instrument, interest rate 3.88%         0.00%  
Debt instrument, redemption price, percentage 100.00%            
Gross debt issuance costs $ 5,800,000            
$500 million Senior Notes, due in 2029 | Senior Notes | Equity offering              
Debt Instrument [Line Items]              
Debt instrument, redemption price, percentage 103.875%            
$500 million Senior Notes, due in 2029 | Maximum | Senior Notes | Equity offering              
Debt Instrument [Line Items]              
Debt instrument, redemption price, percentage of principal amount redeemed 40.00%            
Term Loan Facility              
Debt Instrument [Line Items]              
Maximum borrowing capacity of line of credit facility             $ 950,000,000
Term Loan Facility | Period through December 31, 2020              
Debt Instrument [Line Items]              
Allowed additional cash back to EBITDA     $ 200,000,000.0        
Term Loan Facility | Period until December 31, 2021              
Debt Instrument [Line Items]              
Allowed additional cash back to EBITDA     $ 100,000,000.0        
Term Loan Facility | Debt, weighted average maturity, 1.1 and 1.6 years              
Debt Instrument [Line Items]              
Maximum consolidated leverage ratio         354.00%    
Term Loan Facility | Debt, weighted average maturity, 1.1 and 1.6 years | Maximum              
Debt Instrument [Line Items]              
Maximum consolidated leverage ratio         475.00%    
Revolving credit facility              
Debt Instrument [Line Items]              
Maximum borrowing capacity of line of credit facility             $ 1,200,000,000
Revolving credit facility | Senior Notes              
Debt Instrument [Line Items]              
Aggregate principal amount       $ 600,000,000.0      
Debt instrument, interest rate 3.875%     5.375%