Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2022

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

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

(dollars in millions)	IT Services and Hardware		Network		Total Company
Goodwill, balance as of December 31, 2021	$	157.4	$	488.9	$	646.3
Activity during the year:
Currency translations		0.6		—		0.6
Goodwill, balance as of March 31, 2022	$	158.0	$	488.9	$	646.9

Schedule of Intangible Assets

The Company’s intangible assets consisted of the following:

	March 31, 2022							December 31, 2021
	Gross Carrying		Accumulated			Net		Gross Carrying		Accumulated			Net
(dollars in millions)	Amount		Amortization			Amount		Amount		Amortization			Amount
Intangible assets subject to amortization
Customer relationships	$	851.1	$	(62.2	)	$	788.9	$	850.0	$	(36.2	)	$	813.8
Trade names		108.3		(8.9	)		99.4		108.0		(5.0	)		103.0
Technology		5.0		(0.4	)		4.6		5.0		(0.2	)		4.8
Total		964.4		(71.5	)		892.9		963.0		(41.4	)		921.6
Intangible assets not subject to amortization
FCC licenses and spectrum usage rights		6.7		—			6.7		6.7		—			6.7
Total intangible assets	$	971.1	$	(71.5	)	$	899.6	$	969.7	$	(41.4	)	$	928.3

Schedule of Estimated Useful Lives for Finite-lived Intangible Assets

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

Customer relationships	15 years
Trade names	3 to 10 years
Technology	7 years

Schedule of Estimated Amortization Expense

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

(dollars in millions)
Nine months ended December 31, 2022	$	90.1
2023		113.1
2024		103.9
2025		92.2
2026		85.1
Thereafter		408.5
Total	$	892.9