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NET LOSS PER SHARE - Summary of Outstanding Common Stock Equivalents (Parenthetical) (Details) - shares shares in Millions		12 Months Ended
	Mar. 17, 2021	Dec. 31, 2025
Earnings Per Share [Abstract]
Shares entitled (in shares)	2.0	2.0

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- Definition

Business Combination, Contingent Consideration, Liability, Shares

+ References

No definition available.

+ Details

Name:	pct_BusinessCombinationContingentConsiderationLiabilityShares
Namespace Prefix:	pct_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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