Revenue - Warranty Revenue and Related Balance Sheet Disclosures (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Revenue from Contract with Customer [Abstract]
Refundable customer deposits	$ 10,648	$ 12,379
Deferred revenue	2,367	1,853
Non-current deferred revenue	$ 1,798	$ 2,010

The amount of noncurrent refundable customer deposits related to amounts received in advance of warranty services provided as at the end of the reporting period.

No definition available.

Name:	prch_RefundableCustomerDepositsRelatedToAmountsReceivedInAdvanceOfWarrantyServicesProvidedNoncurrent
Namespace Prefix:	prch_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant