Note 8 - Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2014

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Financial information by segment was as follows (in thousands):

	Quarters Ended June 30,				Six Months Ended June 30,
	2014		2013		2014			2013
Revenues:
Energy and Mining	$	175,608	$	108,592	$	359,518		$	217,283
Water and Wastewater	129,710		115,736		235,843			219,531
Commercial and Structural	17,550		17,772		33,741			31,262
Total revenues	$	322,868	$	242,100	$	629,102		$	468,076
Gross profit:
Energy and Mining	$	35,967	$	26,294	$	71,476		$	50,560
Water and Wastewater	29,257		25,576		49,359			44,737
Commercial and Structural	6,694		6,698		12,146			11,408
Total gross profit	$	71,918	$	58,568	$	132,981		$	106,705
Operating income (loss):
Energy and Mining	$	7,743	$	6,156	$	15,418		$	11,607
Water and Wastewater	12,654		9,040		15,674			11,602
Commercial and Structural	222		627		(1,339		)	(568		)
Total operating income	$	20,619	$	15,823	$	29,753		$	22,641

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area

The following table summarizes revenues, gross profit and operating income by geographic region (in thousands):

	Quarters Ended June 30,				Six Months Ended June 30,
	2014		2013		2014		2013
Revenues(1):
United States	$	227,618	$	155,444	$	438,248	$	294,191
Canada	42,212		35,752		84,075		75,146
Europe	21,175		22,337		43,791		44,987
Other foreign	31,863		28,567		62,988		53,752
Total revenues	$	322,868	$	242,100	$	629,102	$	468,076
Gross profit:
United States	$	50,891	$	38,055	$	92,284	$	67,168
Canada	9,934		8,100		18,996		17,402
Europe	4,543		5,680		9,301		10,684
Other foreign	6,550		6,733		12,400		11,451
Total gross profit	$	71,918	$	58,568	$	132,981	$	106,705
Operating income:
United States	$	11,693	$	7,231	$	14,089	$	7,126
Canada	6,129		4,477		11,552		10,225
Europe	851		1,955		1,378		2,823
Other foreign	1,946		2,160		2,734		2,467
Total operating income	$	20,619	$	15,823	$	29,753	$	22,641

__________________________

⁽¹⁾  Revenues are attributed to the country of origin for the Company’s legal entities. For a significant majority of its legal entities, the country of origin relates to the country or geographic area that it services.