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Legal Proceedings - Additional Information (Detail)			3 Months Ended
	Nov. 10, 2016 USD ($)	Jun. 14, 2016 USD ($)	Jun. 30, 2018 Witness
USEPA
Loss Contingencies [Line Items]
Loss contingency damages sought, value		$ 25,000,000
Loss contingency damages awarded, value		$ 0
AMVAC v. EPA FIFRA/RCRA Matter
Loss Contingencies [Line Items]
Legal costs and fees	$ 2,000,000
Number of corporate witnesses completed the interview | Witness			4

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- Definition

Number of corporate witnesses completed interview.

+ References

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of damages awarded to the plaintiff in the legal matter.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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