Acquisitions - Additional Information (Detail) - USD ($) $ in Millions		1 Months Ended		6 Months Ended
	Apr. 03, 2017	Sep. 30, 2017	Jan. 31, 2017	Jun. 30, 2017
Business Acquisition [Line Items]
Payments to acquire businesses, cash				$ 557.6
Sistema Plastics [Member]
Business Acquisition [Line Items]
Payments to acquire businesses, cash	$ 472.0
Chesapeake Bay Candle [Member]
Business Acquisition [Line Items]
Payments to acquire businesses, cash		$ 75.0
Smith Mountain Industries [Member]
Business Acquisition [Line Items]
Payments to acquire businesses, cash			$ 100.0