v2.4.0.8

Subsequent Events (Schedule Of Restricted Units Granted) (Details) (Subsequent Event [Member], Restricted Stock Units [Member], USD $) In Thousands, unless otherwise specified | 0 Months Ended
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Nov. 10, 2014
Performance-based Award [Member] |
Subsequent Event [Line Items] |
Number Granted | 522
Intrinsic Value | $ 19,344
Time-based Award [Member] |
Subsequent Event [Line Items] |
Number Granted | 866
Intrinsic Value | $ 32,182

X
- Definition Intrinsic value of stock units to be issued. + References No definition available. + Details
Name: | pmtc_IntrinsicValueOfStockUnitsToBeIssued
Namespace Prefix: | pmtc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Stock units to be issued. + References No definition available. + Details
Name: | pmtc_StockUnitsToBeIssued
Namespace Prefix: | pmtc_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration