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Derivative Instruments - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 9 Months Ended |
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Jun. 28, 2014 | Sep. 28, 2013
Offsetting [Abstract] |  |
Outstanding derivative instruments | $ 0 | $ 0
Derivative instruments expiration dates | 2013-07 |

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- Definition Derivative Maturity + References No definition available. + Details
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Namespace Prefix: | cent_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

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- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
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Balance Type: | debit
Period Type: | instant

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- Details
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