Represents number of annual installments for debt repayment.

No definition available.

Name:	prch_DebtInstrumentAnnualPrincipalPaymentNumberOfInstallments
Namespace Prefix:	prch_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

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+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Amount of the required periodic payments applied to principal.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=prch_PromissoryNotes2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt - 2020 Promissory Notes (Details) $ in Thousands	Nov. 02, 2020 USD ($) installment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt
Amount outstanding		$ 441,765	$ 414,735
Promissory Notes 2020
Debt
Amount borrowed	$ 750
Interest rate (stated)	0.38%
Promissory note, number of installments \| installment	5
Principal amount of installment	$ 150
Amount outstanding		$ 500