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Goodwill and Intangible Assets
9 Months Ended
Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
Goodwill and Intangible Assets
Changes in the carrying amount of goodwill are as follows: 
Balance at January 1, 2013
$
56,493

Goodwill acquired during the period

Impairment charges

Adjustments to goodwill during the period
482

Balance at December 31, 2013
56,975

Goodwill acquired during the period

Impairment charges

Adjustments to goodwill during the period

Balance at September 30, 2014
$
56,975

Gross goodwill
$
231,219

Accumulated impairment charges
(174,244
)
Balance at September 30, 2014
$
56,975


 
Intangible assets consisted of the following: 
 
December 31, 2013
 
September 30, 2014
 
Gross Carrying
Amount
 
Accumulated
Amortization
 
Intangible
Assets, net
 
Gross Carrying
Amount
 
Accumulated
Amortization
 
Intangible
Assets, net
Amortizing intangible assets:
 
 
 
 
 
 
 
 
 
 
 
Customer contracts
$
152,629

 
$
(86,584
)
 
$
66,045

 
$
152,889

 
$
(91,820
)
 
$
61,069

Other
26,197

 
(20,868
)
 
5,329

 
26,246

 
(21,545
)
 
4,701

Total amortizing intangible assets
$
178,826

 
$
(107,452
)
 
$
71,374

 
$
179,135

 
$
(113,365
)
 
$
65,770

Intangible assets not subject to amortization
 
 
 
 
30,427

 
 
 
 
 
30,427

Total other intangible assets
 
 
 
 
$
101,801

 
 
 
 
 
$
96,197



During 2013, in accordance with ASC 350, “Intangibles—Goodwill and Other,” the Company impaired its intangible assets related to its professional services business as a result of its decision that its professional radiology services business did not align with the long-term strategic direction of the Radiology Division, and divested its professional radiology services in 2013. This triggering event resulted in revaluing intangible assets related to the professional services business at $1,821 after recognizing an impairment charge of approximately $4,867 related to the intangible assets in the second quarter of 2013. The Company based the carrying value of these intangible assets on the estimated fair value (categorized as Level 3 in the fair value hierarchy, as described in Note 5) of what the Company believed it would have received in a sale transaction for the assets related to its professional services business. All other assets related to the divestiture of the professional services business were immaterial.
In the third quarter of 2013, the Company recorded an impairment charge of $4,529 related to the closure of an imaging site location in August 2013, which was originally purchased in a group of assets acquired in 2007. Upon acquisition, the Company recorded both tangible and intangible assets including physician referral networks, non-compete agreements, certificates of need and goodwill. In late 2012, the term of a non-compete agreement ended causing a decline in revenue, ultimately resulting in the imaging site closure. Based on this triggering event, the Company deemed it appropriate to perform a valuation analysis of the remaining intangible assets related to the original acquisition. The Company applied the excess earnings method under the income approach to value the physician referral networks, and applied the beneficial earnings method under the income approach, and the guideline transaction method under the market approach to value the certificates of need. The Company categorized this fair value determination as Level 3 (unobservable) in the fair value hierarchy, as described in Note 5.
In 2014, the Company intends to perform an annual impairment test in the fourth quarter for goodwill and indefinite life intangible assets based on the financial information as of September 30, absent of other events occurring or changes in circumstances that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The Company compares the fair value of its reporting units to its carrying amount to determine if there is potential impairment. The fair value of the reporting unit is determined by an income approach and a market capitalization approach. Significant management judgment is required in the forecasts of future operating results that are used in the income approach. The estimates that the Company has used are consistent with the plans and estimates that it uses to manage its business. The Company bases its fair value estimates on forecasted revenue and operating costs which include a number of factors including, but not limited to, securing new customers, retention of existing customers, growth in imaging and radiation oncology revenues and the impact of continued cost savings initiatives. However, it is possible that plans and estimates may change. Based on financial information as of September 30, 2014, impairment testing was not required during the nine months ended September 30, 2014. Although the Company concluded that no impairment was present in its intangible assets in the first nine months of 2014, the Company intends to test its Goodwill and other intangibles assets for impairment during the fourth quarter of 2014, as described above.
The Company uses the estimated useful life to amortize customer contracts, which is a weighted-average of 15 years. Other intangible assets subject to amortization are estimated to have a weighted-average useful life of six years. Amortization expense for intangible assets subject to amortization was $2,151 and $1,961 for the quarters ended September 30, 2013 and 2014, respectively, and $8,856 and $5,870 for the nine months ended September 30, 2013 and 2014, respectively. The intangible assets not subject to amortization represent certificates of need and regulatory authority rights which have indefinite useful lives.
Estimated annual amortization expense for the fourth quarter of 2014, and each of the fiscal years ending December 31, is presented below: 
2014
$
1,914

2015
7,061

2016
6,059

2017
5,621

2018
5,260

Thereafter
39,855