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Debt (Detail)
9 Months Ended
Jun. 17, 2016
USD ($)
Sep. 30, 2016
USD ($)
installment
Dec. 31, 2015
USD ($)
Debt Instrument [Line Items]      
Long-term debt   $ 736,405,000 $ 825,000,000
Debt instrument, interest, additional interest above eurodollar rate 1.00%    
Euro Dollar rate      
Debt Instrument [Line Items]      
Minimum applicable margin rate 1.125%    
Maximum applicable margin rate 2.00%    
2016 Credit Facility Agreement      
Debt Instrument [Line Items]      
Debt issuance costs, gross $ 5,000,000 $ 5,000,000  
Federal Funds rate      
Debt Instrument [Line Items]      
Debt instrument interest additional interest above federal fund rate 0.50%    
Federal Funds rate | Euro Dollar rate      
Debt Instrument [Line Items]      
Minimum applicable margin rate 0.125%    
Maximum applicable margin rate 1.00%    
Bank Term Loan      
Debt Instrument [Line Items]      
Long-term debt $ 600,000,000    
Proceeds from issuance of debt 600,000,000    
Revolving credit facility      
Debt Instrument [Line Items]      
Line of credit facility, current borrowing capacity 1,200,000,000    
Line of credit facility, additional borrowing capacity (up to) $ 500,000,000.0    
Line of credit facility, frequency of payments | installment   16  
Debt instrument covenant, maximum pledge of subsidiaries voting stock 66.00%    
Proceeds from issuance of debt $ 200,000,000.0    
Letter of Credit      
Debt Instrument [Line Items]      
Line of credit facility, maximum borrowing capacity $ 50,000,000.0    
Interest expense, net      
Debt Instrument [Line Items]      
Write off of deferred debt issuance cost   $ 1,300,000