Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2021	Mar. 28, 2020
Leases [Abstract]
Change in operating right -of-use assets	$ 10.8	$ (1.3)
Right-of-use assets obtained through acquisitions	$ 1.3

Operating right of use asset obtained through acquisitions.

No definition available.

Name:	ptc_OperatingRightOfUseAssetObtainedThroughAcquisitions
Namespace Prefix:	ptc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration