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v3.21.2

Organization and Significant Accounting Policies - Insurance, Additional Information (Details) | 12 Months Ended
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Sep. 25, 2021 USD ($)
Insurance [Line Items] |
Excess loss insurance that covers any health care claims | $ 750,000
Minimum |
Insurance [Line Items] |
General liability and vehicle liability insurance policies | 250,000
Maximum |
Insurance [Line Items] |
General liability and vehicle liability insurance policies | $ 350,000

X
- Definition Deductible amount under general liability and vehicle liability insurance policies in each occurrence. + References No definition available. + Details
Name: | cent_DeductibleAmountUnderGeneralLiabilityAndVehicleLiabilityInsurancePoliciesInEachOccurrence
Namespace Prefix: | cent_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition [Line Items] for Insurance [Table] + References No definition available. + Details
Name: | cent_InsuranceLineItems
Namespace Prefix: | cent_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum amount of health care claims per person for coverage under loss insurance. + References No definition available. + Details
Name: | cent_MinimumAmountOfHealthCareClaimsPerPersonForCoverageUnderLossInsurance
Namespace Prefix: | cent_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |