Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2011

Goodwill and Intangible Assets [Abstract]

Goodwill

Balance as of December 31, 2010	$	3.1
Goodwill arising from Alexco acquisition		34.1
Balance as of June 30, 2011	$	37.2

Identifiable intangible assets

June 30, 2011:

	Weighted
	average
	estimated useful				Accumulated			Net book
	life		Original cost		amortization			value
Customer relationships		25	$	38.5	$	(0.9	)	$	37.6
Backlog		2		0.8		(0.4	)		0.4
Trademark and trade name		3		0.4		(0.1	)		0.3
Total		24	$	39.7	$	(1.4	)	$	38.3

December 31, 2010:

	Weighted
	average
	estimated useful				Accumulated			Net book
	life		Original cost		amortization			value
Customer relationships		20	$	3.8	$	(0.1	)	$	3.7
Backlog		2		0.5		(0.2	)		0.3
Total		18	$	4.3	$	(0.3	)	$	4.0

Expected amortization of intangible assets for the next five years

2011	$	1.9
2012		2.0
2013		1.7
2014		1.6
2015		1.6
Total	$	8.8