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Leases - Schedule of Supplemental Cash Flow and Right of Use Assets Information (Parenthetical) (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Sep. 30, 2022
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Lessee Lease Description [Line Items] |  |
Operating Lease Right Of Use Asset | $ 150,327 | $ 137,780
Servicemax Inc. acquisition |  |
Lessee Lease Description [Line Items] |  |
Operating Lease Right Of Use Asset | $ 4,000 |

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

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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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