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Goodwill and Other Purchased Intangible Assets
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Sep. 30, 2014
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| Goodwill and Other Purchased Intangible Assets | 6. Goodwill and Other Purchased Intangible Assets Goodwill Goodwill is not amortized, but is evaluated for impairment on an annual basis or when impairment indicators are present. The Company performs its annual impairment test of goodwill as of October 1st of each year. The potential impairment is identified if the fair value of the reporting unit to which goodwill applies is less than the recorded book value of the related reporting entity, including such goodwill. Where the book value of a reporting entity, including related goodwill, is greater than the reporting entity’s fair value, the second step of the goodwill impairment test is performed to measure the amount of impairment loss, if any. There have been no significant events or circumstances affecting the valuation of goodwill subsequent to the impairment test performed on October 1, 2013. As a result, the Company did not record any impairment related to its goodwill for the period ended September 30, 2014. The following is a roll-forward of the activity that affected goodwill during the first nine months of 2014 (in thousands):
Other purchased intangible assets consist of the following (in thousands):
Amortization expense of purchased technology and other intangible assets was approximately $794,000 and $634,000 for the quarters ended September 30, 2014 and 2013, respectively. Of this total, approximately $430,000 and $333,000 was related to the amortization of purchased technology for the quarters ended September 30, 2014 and 2013, respectively. Amortization expense of purchased intangible assets was approximately $2.3 million and $1.9 million for the nine months ended September 30, 2014 and 2013, respectively. Of this total, approximately $1.3 million and $1 million was related to the amortization of purchased technologies for the nine months ended September 30, 2014 and 2013, respectively. Purchased identifiable intangible assets are amortized on a straight-line basis over their useful lives. The estimated useful economic lives of the acquired customer lists and purchased technologies are seven years. The estimated economic useful life of favorable leases is five years. Amortization of purchased technology is included in cost of license fees in the accompanying condensed consolidated statements of income. During the first quarter of 2014, the Company recorded additions to its purchased intangible assets of approximately $4.5 million related to the acquisition of legodo ag. For additional discussion, see Note 2 of this Form 10-Q. The expected remaining annual amortization expense is summarized as follows (in thousands):
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