Business Segment Information (Tables)

9 Months Ended

Sep. 30, 2012

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

Summarized segment information is as follows:

	Three Months Ended September 30,
(in thousands)	Construction		Large Project Construction		Construction Materials			Real Estate		Total
2012
Total revenue from reportable segments	$	385,744	$	255,918	$	169,350		$	38	$	811,050
Elimination of intersegment revenue	—		—		(82,568		)	—		(82,568		)
Revenue from external customers	385,744		255,918		86,782			38		728,482
Gross profit	33,273		57,814		9,984			28		101,099
Depreciation, depletion and amortization	3,160		1,102		7,498			—		11,760
2011
Total revenue from reportable segments	$	431,101	$	213,320	$	170,574		$	986	$	815,981
Elimination of intersegment revenue	—		—		(87,403		)	—		(87,403		)
Revenue from external customers	431,101		213,320		83,171			986		728,578
Gross profit	58,540		25,557		9,554			242		93,893
Depreciation, depletion and amortization	3,437		1,259		7,487			46		12,229

	Nine Months Ended September 30,
(in thousands)	Construction		Large Project Construction		Construction Materials			Real Estate		Total
2012
Total revenue from reportable segments	$	748,803	$	648,645	$	316,211		$	5,055	$	1,718,714
Elimination of intersegment revenue	—		—		(140,457		)	—		(140,457		)
Revenue from external customers	748,803		648,645		175,754			5,055		1,578,257
Gross profit	59,814		108,302		9,034			801		177,951
Depreciation, depletion and amortization	9,973		3,279		22,055			—		35,307
Segment assets	110,402		109,114		353,756			57,964		631,236
2011
Total revenue from reportable segments	$	784,393	$	513,478	$	309,846		$	7,029	$	1,614,746
Elimination of intersegment revenue	—		—		(144,763		)	—		(144,763		)
Revenue from external customers	784,393		513,478		165,083			7,029		1,469,983
Gross profit	87,482		69,513		10,754			1,088		168,837
Depreciation, depletion and amortization	11,362		3,316		21,594			143		36,415
Segment assets	114,359		108,272		368,141			87,232		678,004

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)	2012		2011			2012			2011
Total gross profit from reportable segments	$	101,099	$	93,893		$	177,951		$	168,837
Selling, general and administrative expenses	41,280		39,112			125,274			121,277
Gain on sales of property and equipment	1,622		5,598			6,493			11,572
Other income (expense), net	1,418		(2,894		)	(2,184		)	(5,866		)
Income before provision for income taxes	$	62,859	$	57,485		$	56,986		$	53,266