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Taxation - Disclosure of tax balances as presented in statement of financial position (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Taxation [Line Items]
Income tax receivable – current	$ 10,040	$ 4,514
Trade and Other Payables	$ (57)	$ (57)

X

- Definition

Taxation

+ References

No definition available.

+ Details

Name:	ptv_TaxationLineItems
Namespace Prefix:	ptv_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Trade payables, income tax payable

+ References

No definition available.

+ Details

Name:	ptv_TradePayablesIncomeTaxPayable
Namespace Prefix:	ptv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Trade receivables, income tax receivable

+ References

No definition available.

+ Details

Name:	ptv_TradeReceivablesIncomeTaxReceivable
Namespace Prefix:	ptv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant