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Stock-based Compensation - Schedule of Number of RSU Awards Granted by Award Type (Details) shares in Thousands | 6 Months Ended
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Mar. 31, 2023 shares
Performance-Based Restricted Stock Units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Granted, shares | 69 | [1]
Service-Based Restricted Stock Units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Granted, shares | 965 | [2]
TSR Units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Granted, shares | 69 | [3]
[1] | The performance-based RSUs are primarily made up of RSUs granted to our executives and are eligible to vest based upon annual performance measures over a three-year period. To the extent earned, those performance-based RSUs will vest in three substantially equal installments on November 15, 2023, November 15, 2024, and November 15, 2025, or the date the Compensation Committee determines the extent to which the applicable performance criteria have been achieved for each performance period. Up to a maximum of two times the number of RSUs granted can be earned.
[2] | The service-based RSUs were granted to employees, including our executive officers. The majority of service-based RSUs will vest in three substantially equal annual installments on or about the anniversary of the date of grant.
[3] | The rTSR RSUs were granted to our executives and are eligible to vest based on the performance of PTC stock relative to the stock performance of an index of PTC peer companies established as of the grant date, as determined at the end of the measurement period ending on September 30, 2025. The RSUs earned will vest on November 15, 2025. Up to a maximum of two times the number of rTSR RSUs granted may vest. If the PTC stock price as of September 30, 2022 is higher than the PTC stock price as of September 30, 2025, but still meets or exceeds the peer group indexed return, a maximum of 100% of the rTSR RSUs granted may vest.

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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