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DEBT - Additional Information (Detail) - USD ($)
3 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Minimum consolidated leverage ratio to trigger increase in interest rate 375.00%  
Maximum consolidated leverage ratio possible on Settlement 400.00%  
Consolidated leverage ratio, current 350.00%  
Term Loan Facility    
Debt Instrument [Line Items]    
Minimum consolidated leverage ratio to trigger increase in interest rate 375.00%  
Allowable increment in interest rate on consolidated leverage ratio exceeds 3.75 0.25%  
Maximum    
Debt Instrument [Line Items]    
Allowed additions for business transformation, operational optimization and litigation matters for debt covenant compliance calculation $ 200,000,000  
$1.20 billion senior credit facility weighted average rate 2.14%, due in 2019    
Debt Instrument [Line Items]    
Revolving credit facility, amount committed to outstanding letters of credit 118,300,000 $ 130,800,000
Revolving credit facility, unused portion $ 634,800,000 $ 597,500,000
Senior credit facility    
Debt Instrument [Line Items]    
Minimum consolidated leverage ratio to trigger increase in interest rate 375.00%  
Allowable increment in interest rate on consolidated leverage ratio exceeds 3.75 0.25%  
Private placement notes | BBB or better by S&P    
Debt Instrument [Line Items]    
Allowable increment in interest rate on consolidated leverage ratio exceeds 3.75 0.50%  
Private placement notes | BBB- by S&P    
Debt Instrument [Line Items]    
Allowable increment in interest rate on consolidated leverage ratio exceeds 3.75 0.75%  
Allowable increment in previous base interest rate on consolidated leverage ratio exceeds 3.75 0.25%  
Private placement notes | BB+ or worse by S&P    
Debt Instrument [Line Items]    
Allowable increment in interest rate on consolidated leverage ratio exceeds 3.75 1.25%  
Allowable increment in previous base interest rate on consolidated leverage ratio exceeds 3.75 0.50%