Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Other Intangible Assets

Schedule of changes in the carrying amount of goodwill

        The following table sets forth the changes in the carrying amount of goodwill for the years ended December 31, 2014 and 2013 (in millions):

Balance at December 31, 2012	$	115.9
Current period additions		9.2
Current period adjustments		0.8
Foreign currency impact		1.5
Balance at December 31, 2013		127.4
Current period additions		5.1
Current period adjustments		(0.1	)
Foreign currency impact		(4.6	)
Balance at December 31, 2014	$	127.8

Summary of intangible assets

        The following is a summary of intangible assets at December 31, (in millions):

	2014							2013
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Existing technology and related patents	$	149.8	$	(81.7	)	$	68.1	$	157.9	$	(68.2	)	$	89.7
Customer relationships		13.4		(5.6	)		7.8		18.0		(7.8	)		10.2
Non compete conracts		1.8		(0.2	)		1.6		—		—			—
Trade names		0.2		(0.2	)		—		0.2		(0.2	)		—
Intangible assets subject to amortization		165.2		(87.7	)		77.5		176.1		(76.2	)		99.9
In-process research and development		6.3		—			6.3		5.7		—			5.7
Intangible assets	$	171.5	$	(87.7	)	$	83.8	$	181.8	$	(76.2	)	$	105.6

Schedule of estimated future amortization expense related to amortizable intangible assets

        The estimated future amortization expense related to amortizable intangible assets at December 31, 2014 is as follows (in millions):

2015	$	20.1
2016		19.9
2017		19.4
2018		13.5
2019		2.3
Thereafter		2.3
Total	$	77.5