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Intangible Assets and Goodwill (Tables) | 3 Months Ended
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Mar. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible assets | Intangible assets, net of accumulated amortization, impairment charges and adjustments, are summarized as follows:
|  |  | As of March 31, 2014 |  | As of December 31, 2013
(In millions) | Estimated Life |  | Cost |  | Accumulated Amortization |  | Net |  | Cost |  | Accumulated Amortization |  | Net
Out-licensed patents | 13-23 years |  | $ | 543.3 |  |  | $ | (458.3 | ) |  | $ | 85.0 |  |  | $ | 578.0 |  |  | $ | (450.8 | ) |  | $ | 127.2 |
Developed technology | 15-23 years |  | 3,005.3 |  |  | (2,224.3 | ) |  | 781.0 |  |  | 3,005.3 |  |  | (2,165.4 | ) |  | 839.9 |
In-process research and development | Indefinite until commercialization |  | 330.9 |  |  | — |  |  | 330.9 |  |  | 327.4 |  |  | — |  |  | 327.4 |
Trademarks and tradenames | Indefinite |  | 64.0 |  |  | — |  |  | 64.0 |  |  | 64.0 |  |  | — |  |  | 64.0 |
Acquired and in-licensed rights and patents | 6-17 years |  | 3,269.6 |  |  | (166.2 | ) |  | 3,103.4 |  |  | 3,240.0 |  |  | (123.8 | ) |  | 3,116.2 |
Total intangible assets |  |  | $ | 7,213.1 |  |  | $ | (2,848.8 | ) |  | $ | 4,364.4 |  |  | $ | 7,214.7 |  |  | $ | (2,740.0 | ) |  | $ | 4,474.7 |
Estimated future amortization for acquired intangible assets | Based upon this more recent analysis, the estimated future amortization for acquired intangible assets is expected to be as follows:
(In millions) | As of March 31, 2014
2014 (remaining nine months) | $ | 316.3 |
2015 | 334.7 |
2016 | 319.9 |
2017 | 323.2 |
2018 | 324.3 |
2019 | 304.1 |
Total | $ | 1,922.5 |
Summary of roll forward of the changes in goodwill | The following table provides a roll forward of the changes in our goodwill balance:
(In millions) | As of March 31, 2014 |  | As of December 31, 2013
Goodwill, beginning of period | $ | 1,232.9 |  |  | $ | 1,201.3 |
Increase to goodwill | — |  |  | 35.7 |
Other | — |  |  | (4.1 | )
Goodwill, end of period | $ | 1,232.9 |  |  | $ | 1,232.9 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 + Details
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