XML 65 R51.htm IDEA: XBRL DOCUMENT
v3.21.2

Business segments - Schedule of Long-Lived Assets by Geographical Areas (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Sep. 30, 2020
--- | --- | ---
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total long-lived assets |  | $ 318,732
United States |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total long-lived assets | $ 276,754 | 255,346
Australia |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total long-lived assets | 17,105 | 30,183
Canada |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total long-lived assets | 20,637 | 24,522
United Kingdom |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total long-lived assets | 11,914 | 7,610
Rest of world |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total long-lived assets | $ 5,172 | $ 1,071

X
- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 + Details
Name: | us-gaap_NoncurrentAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

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