Goodwill and Intangible Assets

Goodwill

The changes in the Company's goodwill consisted of the following:



	IT Services and Hardware		Entertainment and Communications		Total Company
(dollars in millions)
Goodwill, balance as of December 31, 2018	$	146.0	$	11.0	$	157.0
Activity during the year:
Adjustments to prior year acquisitions	—		0.8		0.8
Currency translations	0.8		—		0.8
Goodwill, balance as of March 31, 2019	$	146.8	$	11.8	$	158.6

No impairment losses were recognized in goodwill for the three months ended March 31, 2019 and 2018.

Intangible Assets

The Company’s intangible assets consisted of the following:



	March 31, 2019							December 31, 2018
	Gross Carrying		Accumulated			Net		Gross Carrying		Accumulated			Net
(dollars in millions)	Amount (a)		Amortization			Amount		Amount (a)		Amortization			Amount
Customer relationships	$	140.0	$	(20.5	)	$	119.5	$	139.4	$	(17.8	)	$	121.6
Trade names	40.9		(3.5		)	37.4		40.7		(2.8		)	37.9
Technology	9.8		(1.5		)	8.3		9.9		(1.3		)	8.6
Total	$	190.7	$	(25.5	)	$	165.2	$	190.0	$	(21.9	)	$	168.1

(a) Change in gross carrying amounts is due to foreign currency translation on certain intangible assets.

Amortization expense for intangible assets was $3.6 million and $2.6 million for the three months ended March 31, 2019 and 2018, respectively. No impairment losses were recognized for the three months ended March 31, 2019 and 2018.

The estimated useful lives for each intangible asset class are as follows:



Customer relationships	8	to	15	years
Trade names	10	to	15	years
Technology			10	years

The annual estimated amortization expense for future years is as follows:



(dollars in millions)
Nine months ended December 31, 2019	$	11.0
2020	14.4
2021	14.1
2022	13.9
2023	13.5
Thereafter	98.3
Total	$	165.2