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Detail of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified | Sep. 29, 2012 | Dec. 31, 2011 | Oct. 01, 2011
--- | --- | --- | ---
Acquired Intangible Assets by Major Class [Line Items] |  |  |  |  |  |
Gross carrying amount | $ 2,137,780 |  | $ 746,696 |  | $ 763,683 |
Accumulated amortization | (183,268) |  | (154,411) |  | (144,421) |
Net | 1,954,512 |  | 592,285 |  | 619,262 |
Gross carrying amount | 641,693 | [1] | 252,034 | [1] | 257,741 | [1]
Accumulated amortization |  | [1] |  | [1] |  | [1]
Net | 641,693 | [1] | 252,034 | [1] | 257,741 | [1]
Finite-life intangibles |  |  |  |  |  |
Acquired Intangible Assets by Major Class [Line Items] |  |  |  |  |  |
Gross carrying amount | 1,496,087 |  | 494,662 |  | 505,942 |
Accumulated amortization | (183,268) |  | (154,411) |  | (144,421) |
Net | 1,312,819 |  | 340,251 |  | 361,521 |
Finite-life intangibles | Patents |  |  |  |  |  |
Acquired Intangible Assets by Major Class [Line Items] |  |  |  |  |  |
Gross carrying amount | 5,900 |  | 5,896 |  | 5,893 |
Accumulated amortization | (4,428) |  | (4,038) |  | (3,908) |
Net | 1,472 |  | 1,858 |  | 1,985 |
Finite-life intangibles | Backlog |  |  |  |  |  |
Acquired Intangible Assets by Major Class [Line Items] |  |  |  |  |  |
Gross carrying amount | 120,000 | [1] |  |  |  |
Net | 120,000 | [1] |  |  |  |
Finite-life intangibles | Proprietary technology |  |  |  |  |  |
Acquired Intangible Assets by Major Class [Line Items] |  |  |  |  |  |
Gross carrying amount | 256,772 | [1] | 128,841 | [1] | 131,972 | [1]
Accumulated amortization | (49,587) | [1] | (39,956) | [1] | (37,094) | [1]
Net | 207,185 | [1] | 88,885 | [1] | 94,878 | [1]
Finite-life intangibles | Customer relationships |  |  |  |  |  |
Acquired Intangible Assets by Major Class [Line Items] |  |  |  |  |  |
Gross carrying amount | 1,111,902 | [1] | 358,410 | [1] | 366,540 | [1]
Accumulated amortization | (128,610) | [1] | (109,887) | [1] | (102,919) | [1]
Net | 983,292 | [1] | 248,523 | [1] | 263,621 | [1]
Finite-life intangibles | Trade names |  |  |  |  |  |
Acquired Intangible Assets by Major Class [Line Items] |  |  |  |  |  |
Gross carrying amount | 1,513 |  | 1,515 |  | 1,537 |
Accumulated amortization | (643) |  | (530) |  | (500) |
Net | $ 870 |  | $ 985 |  | $ 1,037 |
[1] | Preliminary values of intangible assets acquired in the Merger include backlog of $120.0 million, proprietary technology of $125.0 million, customer relationships of $750.0 million and indefinite-life trade names $390.0 million.

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