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Long-Term Debt - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2015
Sep. 30, 2015
Mar. 12, 2015
Dec. 31, 2014
Feb. 26, 2014
Oct. 09, 2013
Debt Instrument [Line Items]            
Current portion of long-term debt   $ 6.9   $ 31.5    
Standby and trade letters of credit for various corporate purposes   8.8   9.0    
Acquisition Term Loan            
Debt Instrument [Line Items]            
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months $ 1.7     1.8    
Aggregate principal amount outstanding   675.4       $ 700.0
Repayments of Debt 12.5          
Amended Revolving Credit Facility            
Debt Instrument [Line Items]            
Maximum borrowings available under credit facility   175.0        
Standby and trade letters of credit for various corporate purposes   8.8        
Revolving credit facility   0.0   0.0    
Remaining borrowing capacity   166.2        
2011 Term Loan            
Debt Instrument [Line Items]            
Aggregate principal amount outstanding   662.9 $ 662.9   $ 675.0  
Repayments of Debt 12.1          
Amended Term Loan Facility            
Debt Instrument [Line Items]            
Aggregate principal amount outstanding   1,338.3        
Repayments of Debt $ 24.6          
Spanish Government Loan Due 2025            
Debt Instrument [Line Items]            
Other Long-term Debt   0.6   0.7    
Amended Term Loan Facility | Acquisition Term Loan            
Debt Instrument [Line Items]            
Other Long-term Debt   674.2   691.6    
Amended Term Loan Facility | 2011 Term Loan            
Debt Instrument [Line Items]            
Other Long-term Debt   $ 660.3   $ 671.6