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Subsequent Events - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Nov. 01, 2015
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Subsequent Event [Line Items]            
Proceeds from sale of business       $ 75.6    
Net sales   $ 1,746.2 $ 1,975.5 5,277.6 $ 5,776.8  
European Food Trays Businesses [Member]            
Subsequent Event [Line Items]            
Net sales       $ 44.0   $ 71.0
European Food Trays Businesses [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Proceeds from sale of business $ 20.0