v2.4.0.6

Intangible Assets Gross Carrying Amount and Accumulated Amortization (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012 | Mar. 31, 2012 | Dec. 31, 2011
--- | --- | --- | --- | ---
Intangible Assets [Line Items] |  |  |  |
Gross Assets | $ 781,916 | $ 802,540 | $ 765,712 | $ 749,194
Accumulated Amortization | (560,769) | (563,769) |  |
Net | 221,147 | 238,771 |  |
Core-developed technology [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Gross Assets | 418,123 | 407,024 |  |
Accumulated Amortization | (331,603) | (332,763) |  |
Net | 86,520 | 74,261 |  |
Customer contracts and relationships [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Gross Assets | 281,697 | 292,252 |  |
Accumulated Amortization | (154,042) | (154,890) |  |
Net | 127,655 | 137,362 |  |
Trademarks and trade names [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Gross Assets | 71,004 | 72,770 |  |
Accumulated Amortization | (64,100) | (65,090) |  |
Net | 6,904 | 7,680 |  |
Other [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Gross Assets | 11,092 | 11,094 |  |
Accumulated Amortization | (11,024) | (11,026) |  |
Net | 68 | 68 |  |
In-process research and development |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Indefinite-lived Intangible Assets | 0 | 19,400 |  |
Intangible Asset Subject to Amortization [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Gross Assets | 781,916 | 783,140 |  |
Accumulated Amortization | (560,769) | (563,769) |  |
Net | $ 221,147 | $ 219,371 |  |

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