Business Segment Information (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

Summarized segment information is as follows (in thousands):

	Three Months Ended June 30,
	Construction		Large Project Construction		Construction Materials			Total
2016
Total revenue from reportable segments	$	331,346	$	197,322	$	115,342		$	644,010
Elimination of intersegment revenue	—		—		(39,431		)	(39,431		)
Revenue from external customers	331,346		197,322		75,911			604,579
Gross profit	49,056		13,654		10,491			73,201
Depreciation, depletion and amortization	5,345		1,519		5,859			12,723
2015
Total revenue from reportable segments	$	305,605	$	182,893	$	113,449		$	601,947
Elimination of intersegment revenue	—		—		(32,705		)	(32,705		)
Revenue from external customers	305,605		182,893		80,744			569,242
Gross profit	38,884		14,479		10,837			64,200
Depreciation, depletion and amortization	4,866		2,359		5,575			12,800

	Six Months Ended June 30,
	Construction		Large Project Construction		Construction Materials			Total
2016
Total revenue from reportable segments	$	540,833	$	392,771	$	164,273		$	1,097,877
Elimination of intersegment revenue	—		—		(53,846		)	(53,846		)
Revenue from external customers	540,833		392,771		110,427			1,044,031
Gross profit	75,989		27,159		9,298			112,446
Depreciation, depletion and amortization	9,870		2,988		11,196			24,054
Segment assets	151,877		306,440		297,910			756,227
2015
Total revenue from reportable segments	$	494,125	$	373,198	$	167,149		$	1,034,472
Elimination of intersegment revenue	—		—		(44,981		)	(44,981		)
Revenue from external customers	494,125		373,198		122,168			989,491
Gross profit	59,479		32,015		11,635			103,129
Depreciation, depletion and amortization	9,558		5,003		11,007			25,568
Segment assets	143,139		265,124		308,207			716,470

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 June 30,						Six Months Ended June 30,
(in thousands)	2016			2015			2016			2015
Total gross profit from reportable segments	$	73,201		$	64,200		$	112,446		$	103,129
Selling, general and administrative expenses	48,705			47,526			104,838			98,549
Gain on sales of property and equipment	(1,366		)	(475		)	(1,966		)	(1,286		)
Other (income) expense	(1,511		)	2,635			(2,112		)	4,468
Income before provision for income taxes	$	27,373		$	14,514		$	11,686		$	1,398