Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2012

Goodwill and Other Intangible Assets

Changes in the carrying amount of goodwill

Balance at December 31, 2011	$	100.2
Goodwill acquired during the period	9.4
Measurement period adjustments	0.3
Foreign currency impact	0.8
Balance at March 31, 2012	$	110.7

Summary of other intangible assets subject to amortization

	March 31, 2012							December 31, 2011
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Existing technology and related patents	$	151.3	$	(32.9	)	$	118.4	$	141.4	$	(29.9	)	$	111.5
Customer relationships	28.7		(5.8		)	22.9		22.0		(5.1		)	16.9
Trade names	0.2		(0.2		)	—		0.2		(0.2		)	—
Intangible assets subject to amortization	180.2		(38.9		)	141.3		163.6		(35.2		)	128.4
In-process research and development	5.8		—			5.8		8.0		—			8.0
Intangible assets	$	186.0	$	(38.9	)	$	147.1	$	171.6	$	(35.2	)	$	136.4