Adoption of ASC 606 (Tables)

12 Months Ended

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.