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Other Noncurrent Liabilities - Components of Other Noncurrent Liabilities (Detail) - USD ($)
$ in Millions
Sep. 30, 2016
Dec. 31, 2015
Other Liabilities Noncurrent [Abstract]    
Reserve for uncertain tax positions $ 7.4 $ 11.8
Employee benefits 7.3 7.5
Interest rate swap contract 4.8 0.2
Insurance claims and expenses 0.2 0.2
Other 4.8 4.7
Total $ 24.5 $ 24.4