Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill by segment

The changes in the carrying amount of goodwill were as follows:

(dollars in millions)	Electronics		Industrial & Specialty			Total
Balance at December 31, 2019	$	1,223.4	$	956.2	(1)	$	2,179.6
Acquisition (2)	—		6.8			6.8
Purchase accounting adjustments (3)	(1.6)		—			(1.6)
Foreign currency translation	17.7		(12.9)			4.8
Balance at September 30, 2020	$	1,239.5	$	950.1		$	2,189.6

(1) Includes accumulated impairment losses of $46.6 million.

(2) On July 1, 2020, the Company completed the DMP Acquisition. which was not material to our Condensed Consolidated Financial Statements, and therefore, the purchase price allocation, pro forma and post-acquisition results of operations have not been presented.     

(3) During the second quarter of 2020, the Company recorded a step-up of fixed assets of $1.4 million for the Kester Acquisition. The impact of this acquisition on the Company's results of operations was not material.

Schedule of finite-lived intangible assets subject to amortization

Intangible assets subject to amortization were as follows:

	September 30, 2020						December 31, 2019
(dollars in millions)	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
Customer relationships	$	957.0	$	(404.8)	$	552.2	$	959.1	$	(351.4)	$	607.7
Developed technology	384.4		(225.3)		159.1		380.5		(194.8)		185.7
Tradenames	89.4		(9.4)		80.0		51.5		(4.9)		46.6
Other	1.6		(0.8)		0.8		1.6		(1.6)		—
Total	$	1,432.4	$	(640.3)	$	792.1	$	1,392.7	$	(552.7)	$	840.0