Note 9 - Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Quarters Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Revenues:
Energy and Mining	$	139,674		$	114,014		$	385,655		$	309,871
North American Water and Wastewater		77,818			95,200			231,647			266,606
European Water and Wastewater		18,748			22,176			52,343			66,545
Asia-Pacific Water and Wastewater		9,018			11,163			28,369			35,103
Commercial and Structural		19,897			3,665			55,267			3,665
Total revenues	$	265,155		$	246,218		$	753,281		$	681,790
Gross profit (loss):
Energy and Mining	$	33,553		$	27,392		$	93,630		$	75,307
North American Water and Wastewater		17,183			15,882			48,850			40,292
European Water and Wastewater		4,450			5,899			12,158			16,533
Asia-Pacific Water and Wastewater		(1,560	)		1,915			(2,555	)		5,970
Commercial and Structural		9,148			1,541			25,803			1,541
Total gross profit	$	62,774		$	52,629		$	177,886		$	139,643
Operating income (loss):
Energy and Mining	$	20,703		$	7,118		$	41,600		$	20,493
North American Water and Wastewater		6,289			4,413			16,361			2,563
European Water and Wastewater		821			1,261			1,240			3,584
Asia-Pacific Water and Wastewater		(4,016	)		(346	)		(8,782	)		(865	)
Commercial and Structural		2,345			(2,948	)		4,985			(2,948	)
Total operating income	$	26,142		$	9,498		$	55,404		$	22,827

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Quarters Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Revenues:
United States	$	164,715		$	147,974		$	480,104		$	398,475
Canada		47,141			46,839			130,900			127,304
Europe		21,455			26,048			62,398			78,242
Other foreign		31,844			25,357			79,879			77,769
Total revenues	$	265,155		$	246,218		$	753,281		$	681,790
Gross profit:
United States	$	40,218		$	28,094		$	121,651		$	72,129
Canada		13,352			13,225			33,995			34,430
Europe		5,332			6,895			15,107			19,523
Other foreign		3,872			4,415			7,133			13,561
Total gross profit	$	62,774		$	52,629		$	177,886		$	139,643
Operating income (loss):
United States	$	15,699		$	(2,933	)	$	34,250		$	(10,621	)
Canada		9,069			8,776			20,928			21,459
Europe		1,691			1,952			3,789			6,154
Other foreign		(317	)		1,703			(3,563	)		5,835
Total operating income	$	26,142		$	9,498		$	55,404		$	22,827