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v3.21.1

Summary of Business Sales by Product and Geographic Location (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 140,747 | $ 117,439 | $ 104,555 | $ 95,962 | $ 130,521 | $ 124,884 | $ 113,104 | $ 99,676 | $ 458,704 | $ 468,186 | $ 454,272
Gross profit: | $ 50,638 | $ 43,265 | $ 40,306 | $ 38,381 | $ 46,536 | $ 47,463 | $ 41,653 | $ 41,702 | 172,590 | 177,354 | 182,631
Total US |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 271,724 | 282,225 | 300,314
Gross profit: |  |  |  |  |  |  |  |  | 120,565 | 125,142 | 140,886
International |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 186,980 | 185,961 | 153,958
Gross profit: |  |  |  |  |  |  |  |  | 52,025 | 52,212 | 41,745
US Crop |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 223,167 | 220,635 | 240,855
Gross profit: |  |  |  |  |  |  |  |  | 98,340 | 95,429 | 110,172
US Non-Crop |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 48,557 | 61,590 | 59,459
Gross profit: |  |  |  |  |  |  |  |  | $ 22,225 | $ 29,713 | $ 30,714

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