Business Segment Information (Tables)

9 Months Ended

Sep. 30, 2016

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
2016
Total revenue from reportable segments	$	464,624	$	249,345	$	162,835		$	876,804
Elimination of intersegment revenue	—		—		(72,899		)	(72,899		)
Revenue from external customers	464,624		249,345		89,936			803,905
Gross profit	71,530		23,519		12,625			107,674
Depreciation, depletion and amortization	6,162		1,821		6,168			14,151
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	60,471		21,654		13,958			96,083
Depreciation, depletion and amortization	5,194		3,308		5,799			14,301

	Nine Months Ended September 30,
	Construction		Large Project Construction		Construction Materials			Total
2016
Total revenue from reportable segments	$	1,005,457	$	642,116	$	327,108		$	1,974,681
Elimination of intersegment revenue	—		—		(126,745		)	(126,745		)
Revenue from external customers	1,005,457		642,116		200,363			1,847,936
Gross profit	147,519		50,678		21,923			220,120
Depreciation, depletion and amortization	16,032		4,809		17,364			38,205
Segment assets	156,458		322,800		290,898			770,156
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	119,950		53,669		25,593			199,212
Depreciation, depletion and amortization	14,752		8,311		16,806			39,869
Segment assets	140,493		271,878		300,739			713,110

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)	2016			2015			2016			2015
Total gross profit from reportable segments	$	107,674		$	96,083		$	220,120		$	199,212
Selling, general and administrative expenses	54,194			45,262			159,032			143,811
Gain on sales of property and equipment	(398		)	(804		)	(2,364		)	(2,090		)
Other (income) expense	(912		)	1,766			(3,024		)	6,234
Income before provision for income taxes	$	54,790		$	49,859		$	66,476		$	51,257