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Discontinued Operations - Additional Information (Detail) (USD $) | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 26, 2014 | Sep. 27, 2013 segment | Sep. 26, 2014 segment | Sep. 27, 2013 | Sep. 27, 2013 HFC business [Member] | Mar. 29, 2013 HFC business [Member] | Sep. 26, 2014 HFC business [Member] | Sep. 27, 2013 HFC business [Member] | Mar. 05, 2013 Aurora [Member] HFC business [Member] | Sep. 27, 2013 Aurora [Member] HFC business [Member] | Sep. 27, 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 | 14,813,000 | (6,000) |  |  | 14,813,000 |  | 14,800,000 | 15,000,000
Adjustment to prior period gain (loss) on disposal, net of tax |  |  |  |  |  |  |  |  |  |  | (200,000)
Number of reporting units (in segment) |  | 1 | 1 |  |  |  |  |  |  |  |
Carrying value of goodwill based on the fair value |  |  |  |  | 14,547,000 |  |  | 14,547,000 |  |  |
Goodwill impairment |  |  |  |  |  | 0 |  |  |  |  |
Operating Income (Loss) | $ (3,538,000) | $ (2,555,000) | $ (19,409,000) | $ (22,026,000) |  |  | $ 0 |  |  |  |

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- Definition Adjustment, net of tax, to an amount previously reported in discontinued operations that is directly related to the disposal of the component in a prior period. Examples of circumstances leading to such adjustments include the resolution of contingencies relating to the terms of the disposal transaction or relating to the operations of the component prior to its disposal, and the settlement of certain employee benefit plan obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1012-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1510-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1020-107759 + Details
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- Definition For the disposal group, including a component of the entity (discontinued operation), carrying amount of goodwill (adjusted for any amortization recognized prior to adoption of FAS 142 and impairment charges). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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