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Goodwill, Intangible and Other Long-Lived Assets
12 Months Ended
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill, Intangible and Other Long-Lived Assets
Goodwill, Intangible and Other Long-Lived Assets
Goodwill and intangible assets were recognized in connection with the acquisition of Cyrus Networks as well as prior acquisitions. The carrying amount of goodwill was $276.2 million as of December 31, 2013 and 2012.
Summarized below are the carrying values for the major classes of intangible assets:
 
 
 
 
Successor
 
 
Predecessor
 
(Dollars in millions)
 

December 31, 2013
 
 
December 31, 2012
 
 
Weighted-
Average Life
(in years)

Gross
Carrying
Amount

Accumulated
Amortization
Total
 
Gross
Carrying
Amount
 
Accumulated
Amortization
Total
Customer relationships
15
 
$
129.7

 
$
(53.1
)
$
76.6

 
$
129.5

 
$
(36.8
)
$
92.7

Trademark
15
 
7.4

 
(1.8
)
5.6

 
7.4

 
(1.2
)
6.2

Favorable leasehold interest
56
 
3.9

 
(0.2
)
3.7

 
3.9

 
(0.2
)
3.7

Total


$
141.0


$
(55.1
)
$
85.9

 
$
140.8


$
(38.2
)
$
102.6


During the second quarter of 2012, management identified impairment indicators for a customer relationship intangible and other long-lived assets primarily related to the GramTel acquisition. We performed step one of the impairment tests for these assets utilizing cash flow estimates from the most recent long-term business plan and other updated assumptions. The results of these tests indicated a potential impairment loss for each of these asset groups.
Management engaged a third-party valuation specialist to assist with our estimation of the fair value of these assets. Management estimated the fair value of the customer relationship using the income approach, which discounted the expected earnings attributable to current customer contracts, and includes estimates of future expenses, capital expenditures and an appropriate discount rate.
Management also estimated the fair value of other long-lived assets, primarily leasehold improvements, using an income approach based on projected discounted future cash flows using estimates of future revenues and expenses, projected capital expenditures and an appropriate discount rate. During 2012, the fair value of the customer relationship intangible was estimated by management to be $2.8 million resulting in an asset impairment of $1.5 million. Management estimated the fair value of other long-lived assets, primarily leasehold improvements, at $2.4 million resulting in an impairment loss of $11.8 million. There were no intangible asset impairments for the year ended December 31, 2013 or 2011.
Amortization expense for acquired intangible assets subject to amortization was $15.9 million, $1.0 million, $16.4 million and $15.5 million for the periods ended December 31, 2013 and January 23, 2013, and the years ended December 31, 2012 and 2011, respectively.
The following table presents estimated amortization expense for 2014 through 2018:



(Dollars in millions)
 
2014
$
16.9

2015
14.6

2016
11.6

2017
9.5

2018
7.6