Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2011

Goodwill and Intangible Assets [Abstract]

Schedule of Goodwill [Table Text Block]

The changes in the carrying amount of goodwill, net of accumulated impairment losses, for the years ended December 31, 2011 and 2010 are as follows:

							Data Center		IT Services
(dollars in millions)	Wireless			Wireline			Colocation		and Hardware		Total
Balance as of December 31, 2009	$	50.3		$	12.6		$	6.7	$	2.3	$	71.9
Business acquisitions	—			—			269.6		0.2		269.8
Balance as of December 31, 2010	$	50.3		$	12.6		$	276.3	$	2.5	$	341.7
Impairment	(50.3		)	—			—		—		(50.3		)
Disposition of home security business assets	—			(0.8		)	—		—		(0.8		)
Balance as of December 31, 2011	$	—		$	11.8		$	276.3	$	2.5	$	290.6

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

Summarized below are the carrying values for the major classes of intangible assets subject to amortization:

	Weighted-
	Average	December 31, 2011					December 31, 2010
	Life in	Gross Carrying		Accumulated			Gross Carrying		Accumulated
(dollars in millions)	Years	Amount		Amortization			Amount		Amortization
Customer relationships
Wireline	10	$	7.0	$	(4.2	)	$	7.0	(3.4		)
Wireless	9	8.7		(7.6		)	8.7		(6.8		)
Data Center Colocation	15	136.6		(26.4		)	136.6		(11.4		)
IT Services and Hardware	5	2.0		(2.0		)	2.0		(1.9		)
		154.3		(40.2		)	154.3		(23.5		)
Trademarks
Wireless	7	6.2		(1.5		)	—		—
Data Center Colocation	15	7.4		(1.3		)	7.4		(0.5		)
		13.6		(2.8		)	7.4		(0.5		)
Favorable leasehold interest
Data Center Colocation	56	3.9		(0.1		)	3.9		—
		$	171.8	$	(43.1	)	$	165.6	$	(24.0	)

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

The following table presents estimated amortization expense for 2012 through 2016:

(dollars in millions)
2012	$	19.6
2013	19.6
2014	19.2
2015	16.3
2016	12.5