Reportable Operating Segments (Tables)

3 Months Ended

Mar. 31, 2013

Reportable Operating Segments

Schedule of revenue by segment

	For the three months ended March 31,
	2013				2012
Segment	Revenue		% of Segment Revenue		Revenue		% of Segment Revenue
East Construction Services	$	190,211	46.4	%	$	121,850	41.8	%
West Construction Services	207,686		50.6	%	158,031		54.2	%
Engineering	12,098		3.0	%	11,692		4.0	%
Total	$	409,995	100.0	%	$	291,573	100.0	%

Schedule of gross profit by segment

	For the three months ended March 31,
	2013				2012
Segment	Gross Profit		% of Segment Revenue		Gross Profit		% of Segment Revenue
East Construction Services	$	14,995	7.9	%	$	11,418	9.4	%
West Construction Services	28,749		13.8	%	24,401		15.4	%
Engineering	2,352		19.4	%	1,777		15.2	%
Total	$	46,096	11.2	%	$	37,596	12.9	%

Schedule of amount of goodwill recorded by segment

Segment	March 31, 2013		December 31, 2012
East Construction Services	$	71,883	$	69,859
West Construction Services	44,640		44,641
Engineering	2,441		2,441
Total	$	118,964	$	116,941

Schedule of revenue and total assets by geographic area

	Revenues
	For the three months ended March 31,
	2013				2012				Total Assets
Country:	Revenue		% of Revenue		Revenue		% of Revenue		March 31, 2013		December 31, 2012
United States	$	405,163	98.8	%	$	289,128	99.2	%	$	896,330	$	920,872
Non-United States	4,832		1.2		2,445		0.8		12,205		10,335
Total	$	409,995	100.0	%	$	291,573	100.0	%	$	908,535	$	931,207