Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2011

Goodwill and Other Intangible Assets (Tables) [Abstract]

Change in the carrying amount of goodwill

	Process		Aerospace
	Industries		and Defense		Steel		Total
Beginning Balance	$	50.0	$	162.3	$	12.1	$	224.4
Other		1.3		0.3		0.5		2.1
Total	$	51.3	$	162.6	$	12.6	$	226.5

Intangible assets

	As of June 30, 2011						As of December 31, 2010
	Gross				Net		Gross				Net
	Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Amount		Amortization		Amount		Amount		Amortization		Amount
Intangible assets subject to amortization:
Customer relationships	$	81.5	$	20.8	$	60.7	$	82.0	$	18.6	$	63.4
Engineering drawings		2.0		2.0		—		2.0		2.0		—
Know-how		2.1		1.1		1.0		2.1		1.0		1.1
Industrial license agreements		0.4		0.1		0.3		0.4		0.1		0.3
Land-use rights		8.4		3.6		4.8		8.2		3.3		4.9
Patents		4.4		3.4		1.0		4.4		3.3		1.1
Technology use		38.9		7.3		31.6		39.0		6.3		32.7
Trademarks		6.0		5.1		0.9		6.0		5.0		1.0
PMA licenses		8.8		2.9		5.9		8.8		2.7		6.1
Non-compete agreements		2.7		2.1		0.6		2.7		1.9		0.8
Unpatented technology		7.6		6.4		1.2		7.6		6.0		1.6
	$	162.8	$	54.8	$	108.0	$	163.2	$	50.2	$	113.0
Intangible assets not subject to amortization:
Tradename	$	2.0			$	2.0	$	2.0			$	2.0
FAA air agency certificates		14.2				14.2		14.2				14.2
	$	16.2			$	16.2	$	16.2			$	16.2
Total intangible assets	$	179.0	$	54.8	$	124.2	$	179.4	$	50.2	$	129.2