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Derivative Instruments - Gross Contract Notional Volume of Outstanding Derivative Contracts (Detail) (Commodity Contracts [Member], Corn [Member]) | Mar. 29, 2014 bu | Sep. 28, 2013 bu | Mar. 30, 2013 bu
--- | --- | --- | ---
Commodity Contracts [Member] | Corn [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative commodity contracts outstanding volume | 0 | 0 | 915,000

X
- Definition Derivative commodity contract outstanding volume. + References No definition available. + Details
Name: | cent_DerivativeCommodityContractOutstandingVolume
Namespace Prefix: | cent_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration