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Business Segment Data - Financial Information Relating to Company's Business Segments (Parenthetical) (Detail) (USD $)
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3 Months Ended | 12 Months Ended | ||
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Sep. 28, 2013
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Sep. 27, 2014
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Sep. 28, 2013
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Sep. 29, 2012
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| Segment Reporting [Abstract] | ||||
| Goodwill impairment | $ 7,709,000 | $ 0 | $ 7,709,000 | $ 0 |
| Charge related to new products | 11,200,000 | 16,900,000 | 11,200,000 | |
| Gain from sale of manufacturing plant assets | $ 4,900,000 | |||
| X | ||||||||||
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- Definition
Other Charges No definition available.
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| X | ||||||||||
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- Definition
Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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