Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets

Schedule of changes in the carrying amount of goodwill

The following table sets forth the changes in the carrying amount of goodwill (dollars in millions):

	Total
Balance at December 31, 2020	$	320.4
Current period additions		(0.3	)
Foreign currency impact		(5.2	)
Balance at June 30, 2021	$	314.9

Summary of intangible assets

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

	June 30, 2021							December 31, 2020
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Existing technology and related patents	$	300.9	$	(198.4	)	$	102.5	$	309.8	$	(194.6	)	$	115.2
Customer relationships		145.3		(51.8	)		93.5		148.3		(45.4	)		102.9
Trade names		14.9		(5.1	)		9.8		15.2		(4.4	)		10.8
Other		0.3		(0.2	)		0.1		0.3		(0.1	)		0.2
Intangible assets	$	461.4	$	(255.5	)	$	205.9	$	473.6	$	(244.5	)	$	229.1