Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Identifiable intangible assets at March 31, 2012 and December 31, 2011 are comprised of the following:

March 31, 2012:



	Weighted- average estimated useful life	Original cost		Accumulated amortization			Net book value
Customer relationships	25	$	38.5	$	(2.0	)	$	36.5
Backlog	2	0.8		(0.7		)	0.1
Trademark and trade name	3	0.4		(0.2		)	0.2
Total	24	$	39.7	$	(2.9	)	$	36.8

December 31, 2011:



	Weighted- average estimated useful life	Original cost		Accumulated amortization			Net book value
Customer relationships	25	$	38.5	$	(1.7	)	$	36.8
Backlog	2	0.8		(0.7		)	0.1
Trademark and trade name	3	0.4		(0.1		)	0.3
Total	24	$	39.7	$	(2.5	)	$	37.2

Expected amortization of intangible assets for the next five years

The expected amortization of intangible assets for the remainder of 2012 and the next four calendar years and thereafter is as follows:



2012	$	1.4
2013	1.7
2014	1.6
2015	1.6
2016	1.6
Thereafter	28.9
Total	$	36.8

- Definition

Tabular disclosure of amortizable intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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