INTANGIBLE ASSETS AND GOODWILL
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Mar. 31, 2015
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Goodwill and Intangible Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
INTANGIBLE ASSETS AND GOODWILL |
INTANGIBLE ASSETS AND GOODWILL
Intangible Assets
Acquired intangible assets are amortized over their estimated useful lives, which generally range from one to eight years. In estimating the useful lives of intangible assets, we considered the following factors:
Acquired IPR&D is amortized over its estimated useful life once technological feasibility is reached. If IPR&D is determined to not have technological feasibility or is abandoned, we write off the IPR&D in that period.
Following is the weighted average amortization period for our amortizable intangible assets:
Intangible amortization within our Consolidated Statements of Operations for the years ended March 31, 2015, 2014 and 2013 follows (in thousands):
The following table provides a summary of the carrying value of intangible assets (in thousands):
The total expected future amortization related to amortizable intangible assets is provided in the table below (in thousands):
We evaluate our amortizable intangible and other long-lived assets for impairment whenever indicators of impairment exist and concluded the carrying amount of our long-lived assets was recoverable and there was no impairment in fiscal 2015, 2014 and 2013. In fiscal 2015 and fiscal 2014, we wrote off $9.8 million and $31.0 million, respectively, of fully amortized intangible assets related to prior acquisitions. In-process research and development of $0.1 million reached technological feasibility during fiscal 2014, was transferred to amortizable purchased technology intangible assets and is being amortized over its estimated useful life.
Goodwill
The following provides a summary of the carrying value of goodwill (in thousands):
Our annual impairment evaluation for goodwill in the fourth quarters of fiscal 2015, 2014 and 2013 did not indicate any impairment of our goodwill in fiscal 2015, 2014 and 2013.
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