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Acquisitions - Additional Information (Detail) |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Oct. 03, 2016 USD ($) | Oct. 03, 2016 BRL | Mar. 31, 2017 USD ($) | Mar. 31, 2017 BRL | Oct. 03, 2016 BRL
Business And Asset Acquisition [Line Items] |  |  |  |  |
Paid from cash on hand |  |  | $ 4,339,000 |  |
Tebras And PBC [Member] |  |  |  |  |
Business And Asset Acquisition [Line Items] |  |  |  |  |
Goodwill, change in purchase price | $ 14,327,000 |  | $ 14,207,000 |  |
Acquisition of intangible assets | 7,354,000 |  |  |  |
Tebras And PBC [Member] | Customer Relationships [Member] |  |  |  |  |
Business And Asset 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 And Asset 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 And Asset 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] | Surfactants [Member] | Brazil [Member] |  |  |  |  |
Business And Asset 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 |

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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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