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Discontinued Operations - Additional Information (Detail) (USD $) | 3 Months Ended | 1 Months Ended | 3 Months Ended
--- | --- | --- | ---
Mar. 28, 2014 | Mar. 29, 2013 segment | Mar. 28, 2014 HFC business [Member] | Mar. 29, 2013 HFC business [Member] | Mar. 05, 2013 Aurora [Member] HFC business [Member] | Mar. 29, 2013 Aurora [Member] HFC business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Gross proceeds from sale of cable access HFC business |  |  |  | $ 46,000,000 | $ 46,000,000 |
Gain on disposal, net of taxes | 0 | 14,956,000 |  | 14,956,000 |  | 15,000,000
Number of reporting units (in segment) |  | 1 |  |  |  |
Carrying value of goodwill based on the fair value |  |  |  | 14,547,000 |  |
Goodwill impairment |  |  |  | 0 |  |
Operating Income (Loss) | $ (7,222,000) | $ (14,867,000) | $ 0 |  |  |

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