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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Sep. 28, 2012
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The changes in the carrying amount of goodwill are as follows (in thousands):
| Goodwill
Balance as of September 30, 2011 | $ | 663,041 |
Goodwill recognized through business combinations (Note 3) | 133,958 |
Goodwill adjustments | 3,514 |
Goodwill as of September 28, 2012 | $ | 800,513 |
Schedule Of Intangible Assets Excluding Goodwill | Intangible assets consist of the following (in thousands):
|  | As of |  | As of
| Weighted average amortization period remaining (years) | September 28, 2012 |  | September 30, 2011
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount |  | Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Customer relationships | 3.5 | $ | 78,710 |  |  | $ | (36,242 | ) |  | $ | 42,468 |  |  | $ | 57,510 |  |  | $ | (21,828 | ) |  | $ | 35,682 |
Developed technology and other | 3.8 | 89,366 |  |  | (42,266 | ) |  | 47,100 |  |  | 70,046 |  |  | (27,039 | ) |  | 43,007 |
IPR&D | 1.4 | 6,050 |  |  | (3,177 | ) |  | 2,873 |  |  | 4,510 |  |  | (260 | ) |  | 4,250 |
Trademarks | Indefinite | 1,569 |  |  | — |  |  | 1,569 |  |  | 3,869 |  |  | — |  |  | 3,869 |
Total intangible assets |  | $ | 175,695 |  |  | $ | (81,685 | ) |  | $ | 94,010 |  |  | $ | 135,935 |  |  | $ | (49,127 | ) |  | $ | 86,808 |
Schedule of Expected Amortization Expense | Annual amortization expense for the next five years related to intangible assets is expected to be as follows (in thousands):
| 2013 |  | 2014 |  | 2015 |  | 2016 |  | 2017 |  | Thereafter
Amortization expense | $ | 29,199 |  |  | $ | 23,981 |  |  | $ | 21,041 |  |  | $ | 16,247 |  |  | $ | 1,972 |  |  | $ | — |

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- Definition Tabular disclosure of the estimated aggregate amortization expense for intangible assets subject to amortization for each of the five succeeding fiscal years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 350 -SubTopic 30 -Publisher FASB -Number -Article -Subparagraph (a) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill. + References Reference 1: 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=6905597&loc=d3e13854-109267 Reference 2: 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=6905597&loc=d3e13816-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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