INCOME TAXES - Summary of Activity Related to Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Valuation Allowance [Roll Forward]
Beginning balance	$ 324,422	$ 282,337	$ 204,182
Current year change	48,479	40,810	78,155
Increase in valuation allowance as a result of purchase accounting for business combinations	0	1,275	0
Ending balance	$ 372,901	$ 324,422	$ 282,337

Deferred tax assets increase (decrease) in valuation allowance of purchase accounting for business combinations.

No definition available.

Name:	pcor_DeferredTaxAssetsIncreaseDecreaseInValuationAllowanceOfPurchaseAccountingForBusinessCombinations
Namespace Prefix:	pcor_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Income Tax Valuation Allowance

+ References

No definition available.

+ Details

Name:	pcor_IncomeTaxValuationAllowanceRollForward
Namespace Prefix:	pcor_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

+ Details

Name:	us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

+ Details

Name:	us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration