Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Identifiable intangible assets

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

December 31, 2012:

	Original cost		Accumulated amortization			Net book value
Customer relationships	$	38.5	$	(3.2	)	$	35.3
Backlog	0.8		(0.8		)	—
Trademark and trade name	0.4		(0.3		)	0.1
Total	$	39.7	$	(4.3	)	$	35.4

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 next five calendar years is as follows:

2013	$	1.7
2014	1.6
2015	1.6
2016	1.6
2017	1.6
Thereafter	27.3
Total	$	35.4