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Acquisitions - Additional Information (Detail)
9 Months Ended
Oct. 03, 2016
USD ($)
Oct. 03, 2016
BRL
Sep. 30, 2017
USD ($)
Jun. 13, 2017
ft²
T
Mar. 31, 2017
USD ($)
Mar. 31, 2017
BRL
Dec. 31, 2016
USD ($)
Oct. 03, 2016
BRL
Business Acquisition [Line Items]                
Paid from cash on hand     $ 4,339,000          
Goodwill     $ 25,724,000       $ 25,308,000  
Tebras And PBC [Member]                
Business Acquisition [Line Items]                
Goodwill $ 14,207,000              
Acquisition of intangible assets 7,354,000              
Tebras And PBC [Member] | Customer Relationships [Member]                
Business Acquisition [Line Items]                
Acquisition of intangible assets 4,331,000              
Amortization periods for the identifiable intangible assets at the time of acquisition     13 years          
Tebras And PBC [Member] | Supply Contract [Member]                
Business Acquisition [Line Items]                
Acquisition of intangible assets 2,555,000              
Amortization periods for the identifiable intangible assets at the time of acquisition     4 years          
Tebras And PBC [Member] | Non-compete Agreements [Member]                
Business Acquisition [Line Items]                
Acquisition of intangible assets 468,000              
Amortization periods for the identifiable intangible assets at the time of acquisition     5 years          
Tebras And PBC [Member] | Before purchase accounting adjustments [Member]                
Business Acquisition [Line Items]                
Goodwill 14,327,000              
Tebras And PBC [Member] | After purchase accounting adjustments [Member]                
Business Acquisition [Line Items]                
Goodwill 14,207,000              
Tebras And PBC [Member] | Surfactants [Member] | Brazil [Member]                
Business Acquisition [Line Items]                
Original purchase price of the acquisitions 29,075,000             BRL 93,309,000
Paid from cash on hand 21,812,000 BRL 70,000,000            
Deposited in escrow 2,804,000             9,000,000
Unpaid working capital adjustments $ 4,459,000             BRL 14,309,000
Working capital adjustment amount paid         $ 4,339,000 BRL 13,925,000    
Adjusted purchase price of the acquisitions         $ 28,955,000 BRL 92,925,000    
2017 Acquisition Agreement [Member] | BASF Mexicana, S.A. DE C.V. [Member] | Surfactants [Member] | Ecatepec, Mexico [Member]                
Business Acquisition [Line Items]                
Capacity of production facility expected to be acquired | T       50,000        
Warehouse space, laboratory and office space currently expected to be acquired | ft²       124,000