Note 4 - Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2011

Schedule of Goodwill [Table Text Block]

	June 30, 2011		December 31, 2010
Energy and Mining	$	75.9	$	57.5
North American Sewer Rehabilitation		102.0		103.3
European Sewer Rehabilitation		24.0		23.6
Asia-Pacific Sewer Rehabilitation		5.9		5.7
Total goodwill	$	207.8	$	190.1

Schedule of Intangible Assets and Goodwill [Table Text Block]

	June 30, 2011			December 31, 2010
Beginning balance (January 1, 2011 and 2010, respectively)(1)	$	190.1		$	188.6
Additions to goodwill through acquisitions(2)(3)		18.0			1.6
Foreign currency translation		(0.3	)		(0.1	)
Goodwill at end of period(4)	$	207.8		$	190.1

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

			As of June 30, 2011							As of December 31, 2010
	Weighted Average Useful Lives (Years)		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
License agreements		9	$	3,928	$	(2,579	)	$	1,349	$	3,895	$	(2,465	)	$	1,430
Contract backlog		1		5,560		(3,010	)		2,550		3,010		(2,999	)		11
Leases		19		1,237		(120	)		1,117		1,237		(95	)		1,142
Trademarks and trade names		18		15,790		(1,650	)		14,140		14,400		(1,290	)		13,110
Non-compete agreements		5		2,015		(691	)		1,324		740		(589	)		151
Customer relationships		14		72,131		(8,181	)		63,950		53,307		(6,530	)		46,777
Patents and acquired technology		18		32,892		(16,493	)		16,399		25,495		(14,969	)		10,526
Total(1)			$	133,553	$	(32,724	)	$	100,829	$	102,084	$	(28,937	)	$	73,147

Schedule of Expected Amortization Expense [Table Text Block]

2011	$	6,871
2012		7,626
2013		6,347
2014		6,347
2015		6,347