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Leases - Disclosure of short-term and long-term portion of lease receivable (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Short-term and Long-term of lease receivables [Table] |  |
Short-term Portion of Lease Receivable | $ 450 | $ 415
Long-term Portion of Lease Receivable | 835 | $ 1,285
Total Lease Receivable | $ 1,285 |

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- Definition The amount of current finance lease receivables. [Refer: Finance lease receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The amount of receivables related to finance leases. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The amount of non-current finance lease receivables. [Refer: Finance lease receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Short-term and Long-term of lease receivables [Table] + References No definition available. + Details
Name: | ptv_ShortTermAndLongTermOfLeaseReceivablesTable
Namespace Prefix: | ptv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration