Quarterly Data (Unaudited) - Schedule of Quarterly Financial Information (Parenthetical) (Detail) $ in Millions |
3 Months Ended |
---|---|
Dec. 31, 2015
USD ($)
| |
Quarterly Financial Information Disclosure [Abstract] | |
Decrease in net sales | $ (5.2) |
Decrease in cost of goods sold | $ (5.0) |