Subsequent Event - Additional Information (Detail) - Tebras And PBC [Member] - Subsequent Event [Member] - Surfactants [Member] - Brazil [Member]	Jul. 20, 2016 USD ($) Customer t
Subsequent Event [Line Items]
Combined entities annual sales | $	$ 32,000,000
Capacity of production facility purchased in connection with acquisition | t	25,000
Minimum [Member]
Subsequent Event [Line Items]
Number of customers | Customer	1,200