Segment Reporting

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Segment Reporting

18. Segment Reporting

We organize our business into two reportable segments, Energy and Industrial.  Our Energy segment offers the oil and gas industry a comprehensive portfolio of raw frac sand, value-added-proppants, well-cementing additives, gravel-packing media and drilling mud additives.  Our products serve hydraulic fracturing operations in the U.S., Canada, Argentina, Mexico, China, and northern Europe.  The Industrial segment provides raw, value-added and custom-blended products to the glass, ceramics, metals, coatings, polymers, construction, foundry, filtration, sports and recreation and various other industries.

Prior to the second quarter of 2019, the Company’s chief operating decision maker (“CODM”) primarily evaluated an operating segment’s performance based on segment gross profit, which does not include any selling, general, and administrative costs or corporate costs.  Beginning with the second quarter of 2019, the CODM changed the method to evaluate the Company’s operating segments’ performance based on segment contribution margin.  Segment contribution margin excludes selling, general, and administrative costs, corporate costs, operating costs of idled facilities, and operating costs of excess railcar capacity.  This change was made to better measure the operating performance of the reportable segments and to monitor performance without these non-operational costs.

The reportable segments are consistent with how management views the markets served by us and the financial information reviewed by the CODM in deciding how to allocate resources and assess performance.

Segment information for all periods presented in the table below has been revised accordingly to reflect the new measure of profit and loss.

	Three Months Ended March 31,
	2020			2019
	(in thousands)
Revenues
Energy	$	152,373		$	236,075
Industrial		170,287			192,171
Total revenues		322,660			428,246
Segment contribution margin
Energy		21,538			22,019
Industrial		54,200			51,622
Total segment contribution margin		75,738			73,641
Operating costs of idled facilities and excess railcar capacity		6,952			6,955
Selling, general, and administrative		33,447			41,960
Depreciation, depletion, and amortization		34,830			58,095
Restructuring and other charges		5,499			2,002
Other operating income, net		(2,268	)		(6,859	)
Loss from operations		(2,722	)		(28,512	)
Interest expense, net		23,583			25,603
Other non-operating expense, net		2,912			2,187
Loss before benefit for income taxes	$	(29,217	)	$	(56,302	)

Asset information, including capital expenditures and depreciation, depletion, and amortization, by segment is not included in reports used by management in its monitoring of performance and, therefore, is not reported by segment.