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Legal Proceedings - Additional Information (Detail) $ in Thousands |  | 1 Months Ended
--- | --- | ---
Mar. 29, 2016 Case | Jan. 31, 2017 USD ($) Case
Harold Reed v. AMVAC et al. |  |
Loss Contingencies [Line Items] |  |
Number of lawsuits filed | Case | 2 |
Reed |  |
Loss Contingencies [Line Items] |  |
Loss contingency damages sought, value |  | $ 250
Jem Holdings |  |
Loss Contingencies [Line Items] |  |
Loss contingency damages sought, value |  | $ 60
Cross Claims |  |
Loss Contingencies [Line Items] |  |
Number of lawsuits filed | Case |  | 4
Van Giessen Growers, Inc. |  |
Loss Contingencies [Line Items] |  |
Loss contingency estimate of possible loss |  | $ 400
Chin Coulee Farms |  |
Loss Contingencies [Line Items] |  |
Loss contingency estimate of possible loss |  | 530
Houweling Farms |  |
Loss Contingencies [Line Items] |  |
Loss contingency estimate of possible loss |  | $ 4,300

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