XML 126 R111.htm IDEA: XBRL DOCUMENT
v3.21.2

SUBSEQUENT EVENTS (Narrative) (Details) | Aug. 31, 2021 country
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Subsequent Event [Line Items] |
Number of countries | 13
Latin America [Member] | Aeropost, Inc [Member] |
Subsequent Event [Line Items] |
Number of countries | 38

X
- Definition The number of countries in which the entity operates as of balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfCountriesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_StatementGeographicalAxis=srt_LatinAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=psmt_AeropostIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |