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v3.21.2

Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Parenthetical) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 27, 2020 | Jun. 30, 2021 | Jun. 27, 2020
Leases [Abstract] |  |  |  |
Change in operating lease right-of-use assets | $ 4.9 | $ (1.3) | $ 15.7 | $ (1.3)
Right-of-use assets obtained through acquisitions | $ 1.3 |  | $ 1.3 |

X
- Definition Operating right of use asset obtained through acquisitions. + References No definition available. + Details
Name: | ptc_OperatingRightOfUseAssetObtainedThroughAcquisitions
Namespace Prefix: | ptc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Operating right of use asset other changes. + References No definition available. + Details
Name: | ptc_OperatingRightOfUseAssetOtherChanges
Namespace Prefix: | ptc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration