Revenue Recognition - Summary of Selective Enterprise Information of Sales Disaggregated By Category and Geographic Region (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net sales
Net sales	$ 107,046	$ 77,905	$ 211,154	$ 148,578
Insecticides
Net sales
Net sales	32,665	39,442	73,958	77,384
Herbicides/Soil Fumigants/Fungicides
Net sales
Net sales	31,401	16,045	63,586	36,066
Crop
Net sales
Net sales	94,443	65,583	185,761	126,938
US
Net sales
Net sales	64,363	55,760	134,178	108,004
International
Net sales
Net sales	42,683	$ 22,145	76,976	$ 40,574
Accounting Standards Update 2014-09
Net sales
Net sales	107,046		211,154
Accounting Standards Update 2014-09 \| Insecticides
Net sales
Net sales	32,665		73,958
Accounting Standards Update 2014-09 \| Herbicides/Soil Fumigants/Fungicides
Net sales
Net sales	31,401		63,586
Accounting Standards Update 2014-09 \| Other, Including Plant Growth Regulators and Distribution
Net sales
Net sales	30,377		48,217
Accounting Standards Update 2014-09 \| Crop
Net sales
Net sales	94,443		185,761
Accounting Standards Update 2014-09 \| Non Crop Including Distribution
Net sales
Net sales	12,603		25,393
Accounting Standards Update 2014-09 \| US
Net sales
Net sales	64,363		134,178
Accounting Standards Update 2014-09 \| International
Net sales
Net sales	42,683		76,976
Accounting Standards Update 2014-09 \| Goods Transferred At A Point In Time
Net sales
Net sales	106,886		210,591
Accounting Standards Update 2014-09 \| Goods And Services Transferred Over Time
Net sales
Net sales	160		563
Accounting Standards Update 2014-09 \| Balances without adoption of Topic 606
Net sales
Net sales	107,052		211,184
Accounting Standards Update 2014-09 \| Balances without adoption of Topic 606 \| Insecticides
Net sales
Net sales	32,671		73,988
Accounting Standards Update 2014-09 \| Balances without adoption of Topic 606 \| Herbicides/Soil Fumigants/Fungicides
Net sales
Net sales	31,401		63,586
Accounting Standards Update 2014-09 \| Balances without adoption of Topic 606 \| Other, Including Plant Growth Regulators and Distribution
Net sales
Net sales	30,377		48,217
Accounting Standards Update 2014-09 \| Balances without adoption of Topic 606 \| Crop
Net sales
Net sales	94,449		185,791
Accounting Standards Update 2014-09 \| Balances without adoption of Topic 606 \| Non Crop Including Distribution
Net sales
Net sales	12,603		25,393
Accounting Standards Update 2014-09 \| Balances without adoption of Topic 606 \| US
Net sales
Net sales	64,369		134,208
Accounting Standards Update 2014-09 \| Balances without adoption of Topic 606 \| International
Net sales
Net sales	42,683		76,976
Accounting Standards Update 2014-09 \| Balances without adoption of Topic 606 \| Goods Transferred At A Point In Time
Net sales
Net sales	$ 107,052		$ 211,184