Note 4 - Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2013

Note 4 - Goodwill and Intangible Assets (Tables) [Line Items]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	As of June 30, 2013 (1)									As of December 31, 2012 (1)
	Weighted Average Useful Lives (Years)		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
License agreements		7	$	3,918	$	(2,900	)	$	1,018	$	3,925	$	(2,821	)	$	1,104
Backlog		—		4,746		(4,746	)		—		4,756		(4,756	)		—
Leases		13		2,070		(400	)		1,670		2,067		(331	)		1,736
Trademarks		17		21,349		(3,832	)		17,517		21,290		(3,317	)		17,972
Non-competes		—		710		(710	)		—		710		(710	)		—
Customer relationships		14		122,878		(22,420	)		100,458		123,301		(18,912	)		104,389
Patents and acquired technology		18		55,164		(21,300	)		33,864		55,672		(21,244	)		34,428
			$	210,835	$	(56,308	)	$	154,527	$	211,721	$	(52,091	)	$	159,629

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

2013	$	10,308
2014		10,449
2015		10,449
2016		10,430
2017		10,409

Reconciliation [Member]

Note 4 - Goodwill and Intangible Assets (Tables) [Line Items]

Schedule of Goodwill [Table Text Block]

	Energy and Mining(1)			North American Water and Wastewater		International Water and Wastewater			Commercial and Structural(2)			Total
Beginning balance at January 1, 2013	$	76.7		$	101.9	$	28.1		$	65.6		$	272.3
Additions to goodwill through acquisitions	–			–		–				0.2			0.2
Foreign currency translation		(0.6	)		0.8		(1.9	)		(0.3	)		(2.0	)
Goodwill at end of period(3)	$	76.1		$	102.7	$	26.2		$	65.5		$	270.5