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CONTINGENCIES - Narrative (Details)	May 11, 2021 classAction
Commitments and Contingencies Disclosure [Abstract]
Number of class actions complaints filed	2

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- Definition

Loss Contingency, Number of Class Actions

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No definition available.

+ Details

Name:	pct_LossContingencyNumberOfClassActions
Namespace Prefix:	pct_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration