Goodwill and Other Acquisition-Related Intangible Assets (Details) (USD $) | 3 Months Ended | 9 Months Ended | |
In Thousands, unless otherwise specified | Sep. 28, 2013 | Sep. 29, 2012 | Sep. 28, 2013 | Sep. 29, 2012 | Dec. 31, 2012 |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Goodwill, Impairment Loss | ' | ' | $0 | ' | ' |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | ' | ' | 0 | ' | ' |
Goodwill | 13,790 | ' | 13,790 | ' | 4,391 |
Finite-Lived Intangible Assets, Gross | 64,622 | ' | 64,622 | ' | 57,522 |
Finite-Lived Intangible Assets, Accumulated Amortization | -40,471 | ' | -40,471 | ' | -35,209 |
Finite-Lived Intangible Assets, Net | 24,151 | ' | 24,151 | ' | 22,313 |
Intangible Assets Finite and Indefinite Lived, Gross (Excluding Goodwill) | 65,472 | ' | 65,472 | ' | 58,372 |
Intangible Assets, Net (Excluding Goodwill) | 25,001 | ' | 25,001 | ' | 23,163 |
Intangible Assets Gross Including Goodwill | 79,262 | ' | 79,262 | ' | 62,763 |
Intangible Assets Net Including Goodwill | 38,791 | ' | 38,791 | ' | 27,554 |
Change in Gross Goodwill and Intangible Assets | ' | ' | 0 | ' | ' |
Amortization of Intangible Assets | 1,730 | 1,649 | 5,262 | 4,805 | ' |
Fair Value of Assets Acquired | ' | ' | 16 | ' | ' |
Acquisition of business, net of cash acquired | ' | ' | 5,940 | 3,000 | ' |
In Process Research And Development Non Amortizing [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Indefinite-Lived Intangible Assets, Gross (Excluding Goodwill) | 850 | ' | 850 | ' | 850 |
Indefinite-lived Intangible Assets | 850 | ' | 850 | ' | 850 |
Goodwill [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Goodwill | 13,790 | ' | 13,790 | ' | 4,391 |
Indefinite-lived Intangible Assets Acquired | ' | ' | 9,399 | ' | ' |
In Process Research and Development [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-Lived Intangible Assets, Gross | 1,779 | ' | 1,779 | ' | 1,779 |
Finite-Lived Intangible Assets, Accumulated Amortization | -973 | ' | -973 | ' | -658 |
Finite-Lived Intangible Assets, Net | 806 | ' | 806 | ' | 1,121 |
Developed Technology Rights [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-lived Intangible Assets Acquired | ' | ' | 5,000 | ' | ' |
Patents Trademarks And Other [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-Lived Intangible Assets, Gross | 62,843 | ' | 62,843 | ' | 55,743 |
Finite-Lived Intangible Assets, Accumulated Amortization | -39,498 | ' | -39,498 | ' | -34,551 |
Finite-Lived Intangible Assets, Net | 23,345 | ' | 23,345 | ' | 21,192 |
Customer Relationships [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-lived Intangible Assets Acquired | ' | ' | 1,500 | ' | ' |
Trademarks and Trade Names [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-lived Intangible Assets Acquired | ' | ' | 600 | ' | ' |
Deferred Tax Asset [Domain] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-lived Intangible Assets Acquired | ' | ' | 1,665 | ' | ' |
Minimum [Member] | In Process Research and Development [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-Lived Intangible Assets, Useful Life (years) | ' | ' | '3 years | ' | ' |
Minimum [Member] | Patents Trademarks And Other [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-Lived Intangible Assets, Useful Life (years) | ' | ' | '4 years | ' | ' |
Maximum [Member] | In Process Research and Development [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-Lived Intangible Assets, Useful Life (years) | ' | ' | '5 years | ' | ' |
Maximum [Member] | Patents Trademarks And Other [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-Lived Intangible Assets, Useful Life (years) | ' | ' | '15 years | ' | ' |
Increase [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Change in Gross Goodwill and Intangible Assets | ' | ' | 16,499 | ' | ' |
Increase [Member] | In Process Research And Development Non Amortizing [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Indefinite-lived Intangible Assets, Period Increase (Decrease) | ' | ' | 0 | ' | ' |
Increase [Member] | Goodwill [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Goodwill, Period Increase (Decrease) | ' | ' | 9,399 | ' | ' |
Increase [Member] | In Process Research and Development [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-Lived Intangible Assets, Period Increase (Decrease) | ' | ' | 0 | ' | ' |
Increase [Member] | Patents Trademarks And Other [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-Lived Intangible Assets, Period Increase (Decrease) | ' | ' | 7,100 | ' | ' |
CAP Wireless [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Acquisition of business, net of cash acquired | ' | ' | $14,850 | ' | ' |
CAP Wireless [Member] | Minimum [Member] | Patents Trademarks And Other [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-Lived Intangible Assets, Useful Life (years) | ' | ' | '3 years | ' | ' |
CAP Wireless [Member] | Maximum [Member] | Patents Trademarks And Other [Member] | ' | ' | ' | ' | ' |
Goodwill And Finite And Indefinite Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' |
Finite-Lived Intangible Assets, Useful Life (years) | ' | ' | '14 years | ' | ' |