Business Segment Data - Financial Information Relating to Company's Business Segments (Parenthetical) (Detail) - USD ($) |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 26, 2015 |
Sep. 26, 2015 |
Sep. 27, 2014 |
Sep. 28, 2013 |
|
| Segment Reporting [Abstract] | ||||
| Indefinite-lived intangible assets, impairment charge | $ 7,300,000 | $ 7,300,000 | $ 0 | $ 0 |
| Goodwill impairment | 7,709,000 | |||
| Charge related to new products | 16,900,000 | $ 11,200,000 | ||
| Gain from sale of manufacturing plant assets | $ 4,900,000 | |||
| X | ||||||||||
- Definition Charges related to product introduced. No definition available.
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|