XML 40 R28.htm IDEA: XBRL DOCUMENT
v3.22.2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Disposals, Acquisitions and Related Items) (Narrative) (Details) - Aeropost [Member] $ in Millions | 1 Months Ended | 3 Months Ended | 43 Months Ended
--- | --- | --- | ---
Oct. 31, 2021 USD ($) | Nov. 30, 2021 USD ($) | Sep. 30, 2021 country
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Number of countries with company banner | country |  |  | 38
Logistical services provided | $ 2.0 |  |
Period of logistical services provided | 36 months |  |
Pre-tax gain from sale |  | $ 2.7 |

X
- Definition Logistical Services Provided + References No definition available. + Details
Name: | psmt_LogisticalServicesProvided
Namespace Prefix: | psmt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number Of Countries With Company Banner + References No definition available. + Details
Name: | psmt_NumberOfCountriesWithCompanyBanner
Namespace Prefix: | psmt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period Of Logistical Services Provided + References No definition available. + Details
Name: | psmt_PeriodOfLogisticalServicesProvided
Namespace Prefix: | psmt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2443-110228 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230 + Details
Name: | us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=psmt_AeropostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |