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Selected Consolidated Financial Data - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 27, 2013 | Jun. 28, 2013 | Dec. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Oct. 31, 2012 Laser Products | Sep. 27, 2013 Laser Products | Dec. 31, 2012 Laser Products | May 31, 2013 Semiconductor Systems | Sep. 27, 2013 Semiconductor Systems | Jun. 28, 2013 Semiconductor Systems | Dec. 31, 2013 Semiconductor Systems
Effect of Fourth Quarter Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of net assets and liabilities |  |  |  | $ 8,190,000 | $ 7,000,000 | $ 7,000,000 |  |  | $ 8,000,000 |  | $ 8,000,000 |
Gain (Loss) on sale of business | (281,000) | (311,000) | 2,255,000 | (592,000) | 2,255,000 |  | (200,000) | 2,300,000 |  | (300,000) | (300,000) | (400,000)
Tax benefit recognized due to the release of a portion of the valuation allowance on deferred tax assets |  |  | $ 15,300,000 |  | $ 15,300,000 |  |  |  |  |  |  |

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- Definition Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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