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GOODWILL AND INTANGIBLE ASSETS (Tables) | 62 Months Ended
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Dec. 31, 2012
Changes in Carrying Amount of Goodwill by Reporting Units | The changes in the carrying amount of goodwill by reporting units for the years ended December 31, 2012 and 2011 are as follows:
|  | Semiconductor Test |  |  | Systems Test Group |  |  | Wireless Test |  |  | Total |
|  | (in thousands) |
Balance at December 31, 2010: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 260,540 |  |  | $ | 148,183 |  |  | $ | — |  |  | $ | 408,723 |
Accumulated impairment losses |  |  | (260,540 | ) |  |  | (148,183 | ) |  |  | — |  |  |  | (408,723 | )
|  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Activity during the year |  |  | — |  |  |  | — |  |  |  | 352,778 |  |  |  | 352,778 |
Balance at December 31, 2011: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | 260,540 |  |  |  | 148,183 |  |  |  | 352,778 |  |  |  | 761,501 |
Accumulated impairment losses |  |  | (260,540 | ) |  |  | (148,183 | ) |  |  | — |  |  |  | (408,723 | )
|  |  | — |  |  |  | — |  |  |  | 352,778 |  |  |  | 352,778 |
Activity during the year |  |  | — |  |  |  | — |  |  |  | (3,506 | ) |  |  | (3,506 | )
Balance at December 31, 2012: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | 260,540 |  |  |  | 148,183 |  |  |  | 349,272 |  |  |  | 757,995 |
Accumulated impairment losses |  |  | (260,540 | ) |  |  | (148,183 | ) |  |  | — |  |  |  | (408,723 | )
|  | $ | — |  |  | $ | — |  |  | $ | 349,272 |  |  | $ | 349,272 |
Schedule Of Amortizable Intangible Assets | Amortizable intangible assets consist of the following and are included in intangible assets, net on the balance sheets:
|  | December 31, 2012 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Weighted Average Useful Life |
|  | (in thousands) |
Developed technology |  | $ | 357,555 |  |  | $ | 143,126 |  |  | $ | 214,429 |  |  |  | 6.3 years |
Customer relationships and service and software maintenance contracts |  |  | 144,971 |  |  |  | 63,464 |  |  |  | 81,507 |  |  |  | 8.0 years |
Tradenames and trademarks |  |  | 33,840 |  |  |  | 10,909 |  |  |  | 22,931 |  |  |  | 9.0 years |
Customer backlog |  |  | 1,000 |  |  |  | 1,000 |  |  |  | — |  |  |  | 0.4 years |
Total intangible assets |  | $ | 537,366 |  |  | $ | 218,499 |  |  | $ | 318,867 |  |  |  | 7.0 years |
|  | December 31, 2011 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Weighted Average Useful Life |
|  | (in thousands) |
Developed technology |  | $ | 358,155 |  |  | $ | 91,391 |  |  | $ | 266,764 |  |  |  | 6.3 years |
Customer relationships and service and software maintenance contracts |  |  | 144,971 |  |  |  | 45,230 |  |  |  | 99,741 |  |  |  | 8.0 years |
Tradenames and trademarks |  |  | 33,840 |  |  |  | 7,370 |  |  |  | 26,470 |  |  |  | 9.0 years |
Customer backlog |  |  | 1,000 |  |  |  | 1,000 |  |  |  | — |  |  |  | 0.4 years |
Total intangible assets |  | $ | 537,966 |  |  | $ | 144,991 |  |  | $ | 392,975 |  |  |  | 7.0 years |
Schedule Of Estimated Intangible Asset Amortization Expense | Estimated intangible assets amortization expense for each of the five succeeding fiscal years is as follows:
Year |  | Amortization Expense |
|  | (in thousands) |
2013 |  | $ | 72,132 |
2014 |  |  | 69,102 |
2015 |  |  | 52,351 |
2016 |  |  | 52,351 |
2017 |  |  | 46,193 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + 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=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + 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 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 2: 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. Reference 3: 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 Reference 4: 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 5: 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. + Details
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