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v3.19.1

Consolidating Condensed Financial Information of Guarantor Subsidiaries - Narrative (Details) | 6 Months Ended
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Mar. 30, 2019
Senior notes |
Condensed Financial Statements, Captions [Line Items] |
Senior subordinated notes, maturity year | 2023
Guarantor Subsidiaries |
Condensed Financial Statements, Captions [Line Items] |
Collective ownership percentage on guarantor subsidiaries | 100.00%

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- Definition Debt instrument maturity year. + References No definition available. + Details
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Namespace Prefix: | cent_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | srt_CondensedFinancialStatementsCaptionsLineItems
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions. + References No definition available. + Details
Name: | us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_GuarantorSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |