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Equity Method Investments - Additional Information (Detail) - USD ($) $ in Thousands				10 Months Ended	12 Months Ended
	Nov. 09, 2018	Jul. 07, 2017	Jun. 27, 2017	Nov. 08, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Aug. 02, 2016
Equity Method Investments [Line Items]
Gain (loss) from equity method investment					$ (209)	$ (389)	$ (49)
Investment			$ 950				950
Joint venture, consideration					60,904	27,283	92,555
Profeng Australia, Pty Ltd
Equity Method Investments [Line Items]
Joint venture, consideration		$ 1,900
TyraTech Inc.
Equity Method Investments [Line Items]
Gain (loss) from equity method investment	$ 1,463			$ (1,424)			$ (177)
Equity investment ownership position							15.11%
Huifeng/AMVAC Innovation Co., Ltd.
Equity Method Investments [Line Items]
Equity investment ownership position								50.00%
Hong Kong JV
Equity Method Investments [Line Items]
Gain (loss) from equity method investment					$ (209)	$ (356)	$ 128
Equity investment ownership position					50.00%	50.00%
Carrying value of equity investment					$ 513	$ 722

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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