Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets [Abstract]

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, 2017	$	148.8		$	2.2	$	151.0
Activity during the year
Adjustments to prior year acquisitions	0.7			—		0.7
Mergers	—			7.6		7.6
Currency translations	(1.3		)	—		(1.3		)
Goodwill, balance as of September 30, 2018	$	148.2		$	9.8	$	158.0

Schedule of Finite-Lived Intangible Assets [Table Text Block]

The Company’s intangible assets consisted of the following:



	September 30, 2018							December 31, 2017
	Gross Carrying		Accumulated			Net		Gross Carrying		Accumulated			Net
(dollars in millions)	Amount (a)		Amortization			Amount		Amount (a)		Amortization			Amount
Customer relationships	$	140.9	$	(15.3	)	$	125.6	$	116.0	$	(8.9	)	$	107.1
Trade names	41.3		(1.9		)	39.4		15.9		(0.4		)	15.5
Technology	9.9		(1.0		)	8.9		9.9		(0.2		)	9.7
Total	$	192.1	$	(18.2	)	$	173.9	$	141.8	$	(9.5	)	$	132.3

(a) Change in gross carrying amounts is due to foreign currency translation on intangible assets related to OnX and intangible assets acquired in conjunction with the merger of Hawaiian Telcom. See Note 4 for further information.

Finite-Lived Intangible Assets, Tabular Disclosure of Estimated Useful Lives [Table Text Block]

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

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

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



(dollars in millions)
Three months ended December 31, 2018	$	3.7
2019	14.8
2020	14.5
2021	14.3
2022	14.0
Thereafter	112.6
Total	$	173.9