Business Segment Information (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

Summarized segment information is as follows (in thousands):

	Three Months Ended September 30,
	Construction		Large Project Construction		Construction Materials			Total
2015
Total revenue from reportable segments	$	427,018	$	217,084	$	165,771		$	809,873
Elimination of intersegment revenue	—		—		(58,497		)	(58,497		)
Revenue from external customers	427,018		217,084		107,274			751,376
Gross profit	64,298		22,572		14,028			100,898
Depreciation, depletion and amortization	5,194		3,308		5,799			14,301
2014
Total revenue from reportable segments	$	447,097	$	179,446	$	146,789		$	773,332
Elimination of intersegment revenue	—		—		(53,568		)	(53,568		)
Revenue from external customers	447,097		179,446		93,221			719,764
Gross profit	48,802		5,679		12,211			66,692
Depreciation, depletion and amortization	4,621		4,777		5,408			14,806

	Nine Months Ended September 30,
	Construction		Large Project Construction		Construction Materials			Total
2015
Total revenue from reportable segments	$	921,143	$	590,282	$	332,920		$	1,844,345
Elimination of intersegment revenue	—		—		(103,478		)	(103,478		)
Revenue from external customers	921,143		590,282		229,442			1,740,867
Gross profit	126,035		55,116		25,624			206,775
Depreciation, depletion and amortization	14,752		8,311		16,806			39,869
Segment assets	140,493		271,878		300,739			713,110
2014
Total revenue from reportable segments	$	873,357	$	611,110	$	286,698		$	1,771,165
Elimination of intersegment revenue	—		—		(85,684		)	(85,684		)
Revenue from external customers	873,357		611,110		201,014			1,685,481
Gross profit	82,773		72,264		15,478			170,515
Depreciation, depletion and amortization	12,865		12,001		16,267			41,133
Segment assets	150,070		247,694		322,504			720,268

Reconciliation of Operating Profit (Loss) from Segments to Consolidated

A reconciliation of segment gross profit to consolidated income before provision for income taxes is as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2015			2014			2015			2014
Total gross profit from reportable segments	$	100,898		$	66,692		$	206,775		$	170,515
Selling, general and administrative expenses	50,077			47,386			151,374			147,731
Gain on sales of property and equipment	(804		)	(3,004		)	(2,090		)	(6,891		)
Other expense	1,766			2,124			6,234			6,323
Income before provision for income taxes	$	49,859		$	20,186		$	51,257		$	23,352