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Discontinued Operations - Recorded Gain With the Sale of Cable Access HFC Business (Detail) (USD $) In Thousands, unless otherwise specified | 9 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 26, 2014 | Sep. 27, 2013 | Sep. 27, 2013 HFC business [Member] | Sep. 27, 2013 HFC business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Gross Proceeds |  |  |  | $ 46,000
Inventories, net |  |  | 10,579 | 10,579
Prepaid expenses and other current assets |  |  | 612 | 612
Property and equipment, net |  |  | 1,180 | 1,180
Goodwill de-recognized |  |  | 14,547 | 14,547
Deferred revenue |  |  | (4,499) | (4,499)
Accrued liabilities |  |  | (939) | (939)
Total net assets sold and de-recognized |  |  | 21,480 | 21,480
Less : Selling cost |  |  |  | 2,473
Less : Tax effect |  |  |  | 7,234
Gain on disposal, net of taxes | $ 0 | $ 14,813 | $ (6) | $ 14,813

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