Goodwill and Intangible Assets

3 Months Ended

Mar. 31, 2019

9. Goodwill and Intangible Assets

The following table sets forth the changes in the carrying amount of goodwill for the three months ended March 31, 2019 (dollars in millions):


Balance at December 31, 2018	$	275.7
Current period additions		2.3
Foreign currency effect		(2.7)
Balance at March 31, 2019	$	275.3

The following is a summary of intangible assets, excluding goodwill (dollars in millions):


	March 31, 2019						December 31, 2018
	Gross						Gross
	Carrying		Accumulated		Net Carrying		Carrying		Accumulated		Net Carrying
	Amount		Amortization		Amount		Amount		Amortization		Amount
Existing technology and related patents	$	277.6	$	(164.8)	$	112.8	$	272.6	$	(160.5)	$	112.1
Customer relationships		116.2		(20.8)		95.4		112.0		(18.1)		93.9
Non compete contracts		1.8		(1.8)		—		1.8		(1.8)		—
Trade names		11.9		(1.9)		10.0		11.6		(1.6)		10.0
Other		5.5		(4.4)		1.1		5.1		(2.4)		2.7
Intangible assets	$	413.0	$	(193.7)	$	219.3	$	403.1	$	(184.4)	$	218.7

For the three months ended March 31, 2019 and 2018, the Company recorded amortization expense of $10.1 million and $6.8 million, respectively, related to intangible assets subject to amortization.