Operations by Industry Segment and Geographic Area (Tables)

12 Months Ended

Dec. 31, 2018

Intersegment sales and transfers are valued at prices comparable to those for unrelated parties.

Segment information for 2018

	Infrastructure Group			Aggregate and Mining Group		Energy Group		Corporate			Total
Revenues from external customers	$	442,289		$	453,164	$	276,146	$	--		$	1,171,599
Intersegment revenues		21,568			16,603		17,578		--			55,749
Restructuring and asset impairment charges		1,870			--		11,190		--			13,060
Interest expense		10			384		17		634			1,045
Depreciation and amortization		8,424			9,383		9,149		957			27,913
Income taxes		880			2,349		306		(28,769	)		(25,234	)
Profit (loss)		(112,954	)		45,464		3,070		1,586			(62,834	)

Assets		536,744			590,512		309,397		367,211			1,803,864
Capital expenditures		14,823			8,731		4,580		769			28,903

Segment information for 2017

	Infrastructure Group		Aggregate and Mining Group		Energy Group		Corporate			Total
Revenues from external customers	$	553,691	$	403,720	$	227,328	$	--		$	1,184,739
Intersegment revenues		25,965		16,209		24,877		--			67,051
Interest expense		49		634		9		148			840
Depreciation and amortization		7,581		9,363		7,904		954			25,802
Income taxes		1,318		462		491		17,356			19,627
Profit (loss)		26,641		35,748		16,219		(40,963	)		37,645

Assets		666,651		558,684		304,158		390,300			1,919,793
Capital expenditures		7,424		9,194		3,540		604			20,762

Segment information for 2016

	Infrastructure Group		Aggregate and Mining Group		Energy Group		Corporate			Total
Revenues from external customers	$	608,908	$	359,760	$	178,763	$	--		$	1,147,431
Intersegment revenues		16,957		35,031		24,946		--			76,934
Interest expense		31		948		4		412			1,395
Depreciation and amortization		7,205		10,033		6,655		920			24,813
Income taxes		3,033		664		437		27,973			32,107
Profit (loss)		71,482		34,877		4,145		(55,992	)		54,512

Assets		657,225		518,351		271,121		417,351			1,864,048
Capital expenditures		14,451		7,437		5,018		178			27,084

The totals of segment information for all reportable segments reconciles to consolidated totals as follows:

	2018			2017			2016
Net income attributable to controlling interest
Total profit (loss) for reportable segments	$	(64,420	)	$	78,608		$	110,504
Corporate expenses, net		1,586			(40,963	)		(55,992	)
Net loss attributable to non-controlling interest		295			205			171
Recapture (elimination) of intersegment profit		2,090			(55	)		476
Total consolidated net income (loss) attributable to controlling interest	$	(60,449	)	$	37,795		$	55,159

Assets
Total assets for reportable segments	$	1,436,653		$	1,529,493		$	1,446,697
Corporate assets		367,211			390,300			417,351
Elimination of intercompany profit in inventory		(4,986	)		(7,075	)		(7,020	)
Elimination of intercompany receivables		(664,914	)		(717,873	)		(688,369	)
Elimination of investment in subsidiaries		(300,709	)		(303,209	)		(272,766	)
Other		22,202			(2,057	)		(52,292	)
Total consolidated assets	$	855,457		$	889,579		$	843,601

Sales into major geographic regions were as follows:

	Year Ended December 31
	2018		2017		2016
United States	$	915,814	$	932,294	$	941,273
Canada		61,582		65,509		37,539
Africa		45,613		36,847		31,557
Australia and Oceania		38,645		40,201		29,948
South America (excluding Brazil)		30,081		18,562		28,204
Other European Countries		25,985		18,679		19,198
Mexico		9,632		8,508		13,489
Russia		9,571		13,609		3,185
Middle East		7,877		4,881		3,403
Brazil		6,292		10,478		4,300
Other Asian Countries		5,472		10,286		6,926
Japan and Korea		3,649		4,760		10,825
China		2,765		6,113		4,595
Post-Soviet States (excluding Russia)		2,730		5,951		3,293
Central America (excluding Mexico)		2,706		2,929		5,904
West Indies		1,494		3,421		2,994
India		957		1,026		318
Other		734		685		480
Total foreign		255,785		252,445		206,158
Total consolidated sales	$	1,171,599	$	1,184,739	$	1,147,431

Long-lived assets by major geographic region are as follows: