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Other Intangible Assets - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 29, 2014
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Mar. 30, 2013
|
Mar. 29, 2014
|
Mar. 30, 2013
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Sep. 28, 2013
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Mar. 29, 2014
Minimum [Member]
|
Mar. 29, 2014
Maximum [Member]
|
Mar. 29, 2014
Marketing-related Intangible Assets [Member]
|
Dec. 29, 2012
Marketing-related Intangible Assets [Member]
FourStar Microbial [Member]
|
Mar. 29, 2014
Customer-related Intangible Assets [Member]
|
Dec. 29, 2012
Customer-related Intangible Assets [Member]
FourStar Microbial [Member]
|
Mar. 29, 2014
Other Acquired Intangible Assets [Member]
|
Dec. 29, 2012
Other Acquired Intangible Assets [Member]
FourStar Microbial [Member]
|
|
| Finite-Lived Intangible Assets [Line Items] | |||||||||||||
| Intangible assets acquired | $ 0.1 | $ 0.1 | $ 6.9 | ||||||||||
| Indefinite-lived intangibles assets, impairment charge | 0 | ||||||||||||
| Weighted average remaining lives of acquired intangible assets | 1 year | 25 years | 6 years | 15 years | 15 years | ||||||||
| Amortization expense for intangibles | 1.0 | 1.0 | 2.0 | 2.1 | |||||||||
| Estimated annual amortization expense related to acquired intangible assets, 2014 | 5 | 5 | |||||||||||
| Estimated annual amortization expense related to acquired intangible assets, 2015 | 5 | 5 | |||||||||||
| Estimated annual amortization expense related to acquired intangible assets, 2016 | 5 | 5 | |||||||||||
| Estimated annual amortization expense related to acquired intangible assets, 2017 | 5 | 5 | |||||||||||
| Estimated annual amortization expense related to acquired intangible assets, 2018 | $ 5 | $ 5 | |||||||||||