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Adoption of ASC 606 (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue From Contract With Customer [Abstract] |
Summary of Impact of Adoption of Accounting Standards | The following line items in our consolidated statement of operations for the current reporting period has been provided to reflect both the adoption of ASC 606 as well as a comparative presentation in accordance with ASC 605 previously in affect:
|  | 2018 |
|  | As |  |  | Balance without |  |  | Effect of Change |
|  | Reported |  |  | adoption of 606 |  |  | Higher/(Lower) |
|  | (In Thousands) |
Net sales |  | $ | 378,160 |  |  | $ | 443,821 |  |  | $ | (65,661 | )
Cost of sales |  |  | 362,325 |  |  |  | 427,405 |  |  |  | (65,080 | )
Gross profit |  |  | 15,835 |  |  |  | 16,415 |  |  |  | (580 | )
Selling, general and administrative expense |  |  | 40,811 |  |  |  | 41,391 |  |  |  | (580 | )
Operating loss |  |  | (23,025 | ) |  |  | (23,025 | ) |  |  | — |
Summary of Net Sales Disaggregated by Principal Markets | As mentioned in Note 1, we primarily derive our revenues from the sales of various chemical products. The following table presents our net sales disaggregated by our principal markets, which disaggregation is consistent with other financial information utilized or provided outside of our consolidated financial statements:
|  | 2018 |  |  | 2017(a) |  |  | 2016(a) |
|  | (Dollars In Thousands) |
Net sales: |  |  |  |  |  |  |  |  |  |  |  |
Agricultural products |  | $ | 187,164 |  |  | $ | 184,054 |  |  | $ | 166,180 |
Industrial acids and other chemical products |  |  | 148,598 |  |  |  | 196,029 |  |  |  | 155,744 |
Mining products |  |  | 42,398 |  |  |  | 38,854 |  |  |  | 43,532 |
Other products |  |  | — |  |  |  | 8,567 |  |  |  | 9,129 |
Total net sales |  | $ | 378,160 |  |  | $ | 427,504 |  |  | $ | 374,585 |
| (a) | As noted above, prior period amounts have not been adjusted under the modified retrospective method.

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- Definition Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9031-108599 + Details
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- Definition Tabular disclosure of the comparison between amounts disclosed under previous guidance and new guidance. + References No definition available. + Details
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